The Best Spark Plugs in the World and Why
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- Опубліковано 7 лют 2025
- Spark plugs. The Best Spark Plugs in the World and Why, DIY and car repair with Scotty Kilmer. How spark plugs work. Copper spark plugs vs platinum spark plugs vs iridium spark plugs, which is better? What are the best spark plugs to buy? Best spark plugs for performance and horsepower. Spark plugs replacement. Buying spark plugs. Why spark plugs fail. Car advice. DIY car repair with Scotty Kilmer, an auto mechanic for the last 51 years.
Thanks for watching!
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Mechanic Monday Official Rules:
1. The Mechanic Monday Giveaway will begin January 7th at 9 am CST and run for six days, ending on Jan 13th at 9 am CST.
2. There will be one winner of set of spark plugs valued at $30.
3. To enter, simply leave one non-offensive comment in the video below.
4. Only one comment per entrant is allowed and more than one comment will not increase your odds of winning.
5. Must be 18 years or old at the time of entering this giveaway OR have your parents’ permission.
6. This giveaway is open worldwide.
7. Any offensive, obscene, or lewd comments will be ineligible to win the giveaway.
8. The odds of winning are based on how many people enter the giveaway.
9. The winner will be chosen at random.
10. The winner will receive a reply to their originally posted comment in the video and will also be announced in a newly posted comment by Scotty around Sunday 9 am CST. The winner will be required to respond to Scotty’s comment within 24 hours or their win will become void and a new winner will be chosen at random.
11. The winner will be required to give Scotty their full name and mailing address to receive the prize.
12. Entrants that use computers, programs, or any other means of cheating by adding additional comments through more than one account, will be ineligible to win the giveaway.
13. Standard mailing time from the win date and the date received, will depend on the winner’s geographic location.
14. This giveaway complies with all applicable federal, state, and local laws, rules, and regulations, including U.S. sanctions.
15. Entrants that do not comply with UA-cam’s Community Guidelines will be disqualified: www.youtube.co...
16. This giveaway is in no way sponsored, administered, or associated with UA-cam. Entrants are required to release UA-cam from any and all liability related to this giveaway.
17. Privacy notice: any and all personal data collected from the entrants and winner will only be used to announce the giveaway winner. The winner’s full name and address will only be used to mail the giveaway prize to the winner and nothing else. If you do not agree to these terms, then do not enter the giveaway.
⬇️Scotty’s Top DIY Tools:
1. Bluetooth Scan Tool: amzn.to/2nfvmaD
2. Cheap Scan Tool: amzn.to/2D8Tvae
3. Professional Socket Set: amzn.to/2Bzmccg
4. Wrench Set: amzn.to/2kmBaOU
5. No Charging Required Car Jump Starter: amzn.to/2CthnUU
6. Battery Pack Car Jump Starter: amzn.to/2nrc6qR
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This is the people's automotive channel! The most honest and funniest car channel on UA-cam. Never any sponsored content, just the truth about everything! Learn how to fix your car and how it works. Get a chance to show off your own car on Sundays. Or show off your own car mod on Wednesdays. Tool giveaways every Monday to help you with your own car projects. We have a new video every day! I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.
►Here's our weekly video schedule:
Monday: Tool giveaway
Tuesday: Auto repair video
Wednesday: Viewers car mod show off
Thursday: Viewer Car Question Video AND Live Car Q&A
Friday: Auto repair video
Saturday: Second Live Car Q&A
Sunday: Viewers car show off
►Second Daily Upload Every Afternoon of Live Car Q&A videos as well!
Scotty Kilmer is a participant in the Amazon Influencer Program.
#savagescotty
Great video Scotty! I used to work at autozone and half the time my coworkers had no clue about spark plugs so they would just recommend the most expensive ones and then customers come back pissed off finding out their cars run worse than their used set of plugs😅😅
hello and congrats you won,. Email me your full name, address AND vehicle make, model and year, so I can send you a set of OEM spark plugs for your car: scotty.mechanic@gmail.com
@@scottykilmer You're awesome Scotty!
I have to be careful whenever I have the csm order plugs for a car I'm working on. One of the stores we use will send autolite plugs every time unless you specify what you want. I've had to cuss them out a couple times. I wont put non oe plugs in a car, too many comebacks. (Only exception is a 3v 4.6 Ford)
@@Basslicks82 lol thats the same crap they sold my nephew for his I6 cherokee lol
(Autozone) Sorry to hear that.
My Dad was a Mechanic for 50 years. Keep it stock Son, you will have less problems and it will last longer.
Thanks Scotty..
“Quit being stupid…”
Thanks [step]Dad
Any body here cause they’re at that time in their adult life that you start doin your own mechanical work?
And im a girl lol
Yes, and I’m having so much fun! Can’t believe I’ve never attempted this sooner. I just figure, no one is gonna take more care/attention to detail to work on my car than me.
There’s a sense of satisfaction when you do it yourself. However, you can get in a fix if you don’t have the right tools needed for the job. I saved over $300 on my plug & wires job. Just wish I’d put in Iridium plugs instead of the platinum.
Well, I started a little while ago, like when I was 16. I'm now 59, but I learned as a teenager I was better off doing my own work.
You’re so hot
This man is just a mountain of knowledge, I have fixed so many vehicles by watching his videos and I am not a mechanic, maybe mechanically inclined but not a mechanic. Thanks Scotty, you're awesome.
If you factor how much he has saved his viewers by giving good proven , he's saving billions of dollars each year.
Scotty is a National Treasure !!!! I've been watching him for years.
Yep, doing my own brakes because of Scotty.
He gives zero step by step information on any assembly/disassembly. Which videos are you referring to? Why lie?
You're welcome.
I am not a mechanic, but I’ve learned so much watching the videos of Scotty. Keep up the good work. You’re an asset to those of us that don’t know and to help us from being ripped off. Thanks.
I use a Mickey mouse DVD in my masturbation techniques but I don't watch it or anything like that I use the physical case
Yes, except, that he forgot the Silver spark plugs, for the High Power Engines , such as Turbo Engines. Pwy.
@@kopronkoso say you! Start your own channel since you know so much!
100%.
Scott has never steered me wrong. I've taken his advice on many products and have never regretted it.
Same here. I will never be confused with being a mechanic. But much of what he says is just simple common sense.
I grew up in my father's work shop and what you explane in your car repair videos is exactly what my father used to say so I know you are spot on , I really miss him so your videos remind me of him, keep up the great work as it is appreciated by so many.
Scotty- What a wealth of information! I have a 2015 GMC Sierra with the 5.3. Had the check engine light come on twice. Engine started shaking, losing power. Fortunately I was close to my trusted mechanic. He brought out a stool and reconnected the plug wire. Second time it happened after a few months, I tried it myself and could not reconnect it. Took it to the mechanic and he something cracked on the plug. He fixed it. Both times he declined payment. Both times I gave him a 20. We were both good with the fix.
Same here. But sometimes my dad was wrong lol with his old timely ways🦋
I have saved a ton of money on repairs that seem impossible until I see how simple they are on your videos. You are a national treasure to us DIYers who need to save a buck or two. Thank you!!!
Scotty, your car repair video on choosing the best plugs just saved me a lot of time and helped me decide on the best plugs for my 2000 Tundra 4.7 V8.
After doing all my own work for 50 years, I am switching to Irridium!
Your voice of experience is a treasure to us all!
Robert
Robert Robinson I have the same 2000 tundra. Just bought some new iridium plugs and haven't had a chance to install them yet, but it's good to know other first gen tundra owners are putting iridiums in with no problems.
Both of you guy's with Yotas should try Pulstart they will give you insane results performance and MPG.
@@Carlos_Jzx really????
@@Carlos_Jzx NO, they won't. You've been conned.
@@SlikLizrd
I know for a fact they are in both of my vehicles as we speak and I can tell you for a fact they do as they say and I had no issue what so ever with them so I don't know what happen to you but I know they have work so far for me.
I have a Nissan Serena and I put in the spark plug you talked about and now my car is running like brand-new thank you so much🎉🎉🎉🎉🎉🎉
Scotty, I'm 62 and have always enjoyed working on my own truck. I adore your videos. You are so very helpful to me and so many others. You are a true gift too many in this world. Wishing you the very best always my good man..
It's insane how hard it is to change the plugs in some modern cars! 🤬
Toyota 86 boxer engine
@@TheBigDanois more like subaru engine in a toyota car :s theres a reason toyota saying bye bye to them.
@@Keyno77 Toyobarus 😊
It was really easy on my 08 Corolla.I changed the valve cover gasket while I was at it.I put iridium plugs in so I doubt I will ever have to change the plugs again
On my girlfriends ‘97 t&c, the firewall side of the of the 3.8l v6 is the worst plug changing ive experienced so far (i can do it, but its a literal real pain to do so). Every other vehicle i do spark plug maintenance (and/or maintenance in general) on (‘05 sebring 2.4l, ‘10 dakota 3.7l, ‘98 grand am 3.1l, ‘03 galant 2.4l, ‘01 cherokee 4.0l, and ‘07(?) spectra5 2.0l (?)) is a piece of cake. :)
I think this is the most honest and clear cut understanding informational channel with Mr. Kilmer, I have ever seen. I have learned so much. Any one can learn from him. You now can choose to deal with these mean and insulting people at the stores only if you want to be stressed out. I choose peace of mind and I learn at the same time. I THINK YOU'RE GREAT!!
Thank you.
Yes I agree. I put in iridium plugs that replaced the original 60,000 mile iridium plugs. (1991SupraTurbo)The old ones looked the same, just a little dirty than the new! Who knew!!!
Just to clarify, the metal type of the plug (copper, platinum, iridium, ruthenium) does not affect the overall temperature (heat range) of the spark plug. For example, a 6 heat range spark plug is a 6 heat range plug. The goal is still to maintain the same tip temperature no matter the metal. ~Mike Becker, Senior Technical Instructor
ngk not good kid
Thanks NGK, All I run in my vehicles is NGK. I went to NAPA, asked for NGK Plugs for my 97 Jeep 4.0, guy say's WHAT ? for a Jeep 4.0 ? I don't think they make them, I said yes they do & here's the part No. He looks it up, say's I'll be damned they do & we have 6. He comes back & say's I've worked here for over 20 years & NEVER HAD ANYBODY ASK FOR NGK PLUGS FOR THAT ENGINE. I said that's too bad they don't know what their missing. I know, COOL STORY BRO. ?
@@marcoramirez120 How about, NGK "Nothing greater, kid"?
@@NoWr2Run Haha cool story BRO! What plug did you end up putting in? FR5-1?
So why not use tungsten? Highest refractory metal around.
Why in the world would anyone give a thumbs down on videos like this? Scotty is not only spot on, he is a great and funny communicator.
I agree he's good
They take the bus or are angry "professional" mechanics that don't want their secrets out.
Because he's wrong !!! I've tested different spark plugs on my old 2003 Oldsmobile Alero 2.2 ecotech and different spark plugs do make a difference as well as different designs and that's not only time Scotty's been DEAD WRONG he did a video about letting your car warm up and was completely wrong about that especially in the winter !!!
Dennie Korpi : Believe It or Not There are deeper things to know and study and be able to do with the subject at hand . I am very serious. no joke ! ..
I was thinking the same thing, must be dudes at Napa and Autozone 😀
spark plugs is a huge reason why i love 4 cyl turbo engines. Especially on the rwd cars where the engine is mounted vertically rather than horizontally. spark plugs, intake manifold, exhaust manifold, turbo, intake system... everything is SO easy to work on.
Vertical engines must be easy to work on. I've never seen one though.
Thanks for telling me that iridium spark plugs can last 200,000 miles. My 2007 Toyota Sienna has now 100,16 thousand miles now. So I'll wait a while longer. No problems now. The information you give is very helpful.
I am 15 years old and currently fixing up a 94 Toyota pickup and I love your videos.
Thanks Isak
Excellent choice.
Perhaps if you kept a photo log of your progress, you could make a video and submit it to Scotty. I believe he still publishes viewer videos from time to time.
I had a green 94 Toyota with a manual transmission and manual steering.
@@nmcnmb thanks
@@redstreet8012 neat
"back in a day, when i was a young mechanic"
i never miss out this phrase/sentence whenever I'm watching his video
I really appreciate you brother, you're such a help. My father is a musician/teacher, and he is very detailed when teaching his students. The way you teach reminds me of that. You can definitely see your passion for fixing vehicles. Thanks again sir- I also hope and pray you and your family all are safe.
Amen
God bless your Father. There is a special place for teachers😀
refreshing too hear strong genuine spirted people!
Amen
Oh, the unknown treasures you might find if you organized that shed! My wife's car developed a miss. I deducted that since I hadn't changed the spark plugs, I should. Bought wires and plugs and upon changing the plugs, found one with the ground electrode burned away and most of the others close behind. '05 Caravan with 284K miles. Original plugs. A testament to the longevity of OE plugs! Thanks for sharing..........
I used the NGK in my Honda Goldwing. They are great plugs.
If you grew up with out a father and ever needed mechanical help with your car. Daddy Scotty was always there for you lol
I have my dad and uncle helping me with my first car, but i still watch Scotty for the tips.
@@TopiasSalakka then this wasnt for you little girl
@@calilife5109 What makes me a little girl?
@@TopiasSalakka he's trolling.
@@jeremyhauser6193 nope he is not trolling is the truth, nothing but the truth cute hair Tobias!
Scotty Kilmers advice has been saving me money for the past 51 years !
Maybe Scotty is Dan's mechanic since day one :)
@@maxlevedgeful , people will never know how or how long I have known uncle Scotty ! And the computer system was invented in what year ? Your still wet behind the ears and have a long way to go before you even learn how a engine works !
@@Davidxdlol Hey, genius, did it occur to you that "Dan Logical Thinking" might be an ACTUAL live customer?
Maybe w/ a 51 yr relationship w/ Scotty?
Wow. Just wow...
@@commonsense3673 hey don't scold me, I'm on your side :). It must be awesome to have Scotty as a relative. Have a good day
@@maxlevedgeful , I did apologize because the message I replied to was not yours lol , I highlighted the forgive me Post to you ! Lol
I always loved the old Fire Injectors I got from JC Whitney back in the day. The closest thing to that today is a type of aviation spark plug. The Fire Injectors lasted forever.
Excellent advice; it is a fact that most of the time it is hard to change spark plugs because you need to remove other parts to reach them. It makes sense to opt for the iridium spark plugs to minimize maintenance time.
I got iridium plugs and they cracked, I think they were NGK from RockAuto, someone said beware
of counterfeit parts, who knew"?
Only the plastic engine cover needs to be removed in my Chevy, super easy DIY job
@@zacharypeery4082 my 90 caddy is a pain in the behind 😭😭
At least until 2013 chevy and gmc 5.3 are very easy. Not like my Ford edge 😒
I still have my plug gapping tool that I used back in the 60s
Me too!
awesome
The first time I timed the engine on my old Dodge pickup, I had a friend of mine double check it, who was an Auto Mechanic and is now a Mechanical Engineer. Even he was wrong, and it ended up bending an exhaust valve in the shape of a question mark and broke the keeper in half. I am going to frame that exhaust valve with the caption, "are you sure you timed your engine correctly?" or some variation of that phrase. At least I didn't mess up the spark plugs when I installed them.
Been in the car business for over 45 years.
So great to hear someone say “ use what the engineers of that car designed for it “.
Scotty: You're "old school" advice and experience are so valuable to us weekend warrior mechanics who want to work on our own vehicles. Thanks for sharing your knowledge!
Like Terminator in Genesys.
"Old.Not obsolete."
*Your
@Captain Buff The Third Actually I do. You're just projecting. It's important to be a nazi these days. Join the party. Make a difference.
@Captain Buff The Third Your face is woeful.
You do know that last post was a joke, right? The concept of helping people out seems alien to you? If you kept saying the wrong word, wouldn't you want someone to help you out and stop making you sound like a fool?
@Captain Buff The Third "Boy"? Lol way to make yourself older than you sound, grandpa. And you're talking in third person? Jesus, you're delusional. Ah, this'll be a good entertainment.
⬇️Scotty’s Top DIY Tools:
1. Bluetooth Scan Tool: amzn.to/2nfvmaD
2. Cheap Scan Tool: amzn.to/2D8Tvae
3. Professional Socket Set: amzn.to/2Bzmccg
4. Wrench Set: amzn.to/2kmBaOU
5. No Charging Required Car Jump Starter: amzn.to/2CthnUU
6. Battery Pack Car Jump Starter: amzn.to/2nrc6qR
⬇️ Things used in this video:
1. Common Sense
2. 4k Camera: amzn.to/2HkjavH
3. Camera Microphone: amzn.to/2Evn167
4. Camera Tripod: amzn.to/2Jwog8S
5. My computer for editing / uploading: amzn.to/2uUZ3lo
6. Video editing software: amzn.to/2jv5Fhf
7. Thumbnail software: amzn.to/2k7tz6C
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Scotty Kilmer I’m shocked 😱
Ok 🙃👌
Love your videos, thanks for them, keep up the good work. Regards from Romania.
Thanks again! Love your videos very useful!!!
Thank you Scotty
Sparkplugs are the unsung heros of the ignition system, always there, always doing their job, until they don't! Iridium plugs are worth their weight in gold for modern engines. Thanks again Scotty!
What about Ruthenium?
Have you ever tried autolite fine wire plugs? How are they,would you know anything about them? I don't want to use them I'd they're garbage.
@@charlesbosse9669 Bosch iridium
@joshsinglefooter The parts store was out of the Bosch. Maybe I'll take these back and find another store? Thank you much for your reply. Appreciate it. I just want to do this once,not put these things in and have to take them back out again. I can't afford to go get another vehicle. So I need to take care of this one. 2013 Dodge Dart. It was my son's car.
Worth their weight in gold in a T-GDI engine.
I’ve been doing my own maintenance since I rebuilt my dad’s 1959 re-ground mini engine from the workshop manual. Started 1st time too and drove great. Now I’m over 70 I’ve had enough of it and let my son do it all for me, glad we had him. I don’t think his 3 sisters would have been any good 🙂
there are some very good female mechanics!! dont be sexist!!
@@jacksyful don’t be so reactionary, I was merely stating a fact and not having a downer on the female sex. My daughters have other skills and interests. Chill out 🙂
Thank you Scotty, I just replaced the battery in my 2019 Toyota 4runner, and right away noticed about two miles to the gallon better gas mileage. I saw your video about weak batteries, I had to jump mine after having the radio on for less than an hour. So I replaced it.
Been using iridiums and tried some of the copper plugs to see what would happen. You're absolutely right; the performance and fuel economy dropped substantially. Good vid.
Have96 volvo 960 interference engine1st belt.broke another engine platinum plugs good enough Scotty easy change straight great videos,
Actually he said they will initially be the same, only the iridium and platinum will maintain their sharp edges longer and wear much more slowly as far as the gap getting larger.
copper is fine
Im not into cars but this guy is hilarious and im into him as a person. Been binge watching his channel for 4 hrs now
I too have joined the same Binge Club. LOL!!
The replies are as entertaining as the videos 😊
Actually, he can kinda make you do that. Especially when the info coming is something you always wondered about.
You know it will be the straight dope, so even more interesting, in this play on ignorance world we have for an auto repair industry in America:)
@@carlovincetti1352 c
I do agree with you fam. Binge watching this guy for 3 days now.
My 2019 Nissan 370Z has about 56k miles on it with the OEM Denso Iridium twin tip fine wire electrode tips. The engine starts instantly, idles smoothly and stably and accelerates without any signs of misfire. The recommended change interval on the plugs is 105k miles, and I believe it will go that long.
This is amazing to a guy who used to pull his plugs after 10k miles to clean them, file them and regap them. Part of the reason for the increased longevity is the fact that today's engines burn less oil, are running leaner fuel air mixtures and don't have substances like lead in the fuel to increase the octane.
NGK iridium spark plugs are amazing. Good on stock cars, and modified cars making good power.
I’m shocked 😱
I like NGK good plugs.
I've always heard racers use denso because their more powerful but they don't last as long
Hell I just got a "new" car, went to see my family over a couple of weeks and now I realize I never checked the spark plugs on it, probably still has the original ones from 1991, but because my entire family drives diesel cars apart from me, I don't have a tool for removing them to check here.
Yep that's correct David34343.
NGK's last longer than denso's,but not as much power as the denso's.
Nothing more beautiful, satisfying and IMPORTANT than Americans sharing good information, it just touches my heart.
Thanks Scotty, 😊!
I've had platinum plugs in my Escalade for 110,000 mi. Still starts and runs smooth as silk. Will go for iridium next.
Still have my 1989 DODGE Pickup with 200K and still running as it did when I first bought it. Thanks for the tips over the years Scotty. The weather is starting to change so it’s time for tuneups!
I love how passionate and honest this guy is about car tech!!👍👍
No kidding
I 👍🏽 concur. He is awesome.
The first time i change my spark plugs, a drop one !. When i start the engine, sound bad and it was shaking. So i take the cables off thinking that one was loose. Start again, same sound a shaking like there is no tomorrow. I remember the spark that hits the ground. I check and the gap was too short. Meassure with the old spark, and the engine works just fine. Dont mess with the gap, is very important.
looks like you had fun, plugs always seem to hit the floor tip first crushing the end shut, I love new guys in the shop when this happens, I learned to listen for the tink sound on the cement floor, the sound of falling spark plugs.
@@billybob042665 No. The spark plug fell from the side of the ground electrode. I fix the gap, and the engine works just fine.
@@ateam6486 Lesson learned haha !
@@ateam6486 That is a distinctive sound indeed.
I replaced my 50,000 Autolite platinum plugs with Autolite iridium plugs and got a 4 mpg increase. They now have over 20,000 miles and still give me increase in gas mileage.
Iridium good for 80000 kms
Added iridium to my Toyota 2004 Highlander.. The plenum has to be removed.. So just upgraded while it was torn down. Thanks for all the great information.
Scotty is an old school dude that embraced technology.
...Of '94 Toyota Celica.
if you use the stuff between your ears, you never stop learning
Scotty and his brother were graduates of MIT.
he's awesome dude man
@@billwessels207 ya right
Hey Scotty, you obviously haven't tried the E3. I've been fixing cars for 42 years, my own shop for the last 18 years. I use to feel the same as you. Then a customer demanded the e3, so I installed them. I have worked on this car several times, fist being the intake gasket on this Buick 3.1. I installed the E3 and he said it was the best it's ran. I looked up the plug, and the tests shown impressed me. Installed them in my 4.3 S10 that I had the delco plugs in. Much different, big difference in power and mileage. I mean I couldn't squeal the tires before and I can now. I've installed them on several cars since, same results. And the emissions test results on an engine with new oem plugs and e3 plugs also changed. Yesterday I took a freeway run and before top speed was 93, now I can peg the 100mph speedo. Also, same price on all applications of them, my commercial discount is $6.09 each. And also I can't find cheaper price online.
Just saying, sometimes us old dogs can still learn a few things. One thing I haven't verified is longevity. I suggest you do some research - The tests done showing the combustion inside the cylinder is what impressed me. I usually concur with your videos, this is the first time I've stepped in.
Read the reviews on E3. Many complain about them failing or fouling within 5k miles.
@@azmick662 Haven't seen those, looked at many, but will look again. 2 of my customers are past that, Uber drivers. We'll see.
E3 best plug made
I just put Iridium plugs in my 04 Camry 99000 km myself. Took 20 minutes and 50 bucks; good for 5 more years.
I had a 88 S-10 2.5 L that I bought new, I drove it 300,000 miles on the orignal spark plugs and serpentine belt. I just did it to see how long they would last. I did regap the plugs 2 or 3 times. A good little truck!
I wish there were more mechanics like you with honesty
I learn so much from Scotty! He’s a true-blue patriot providing a REAL Public Service to us all. Thank you, Scotty!
Kept getting a misfire on my Ford Explorer #1 cylinder with Motorcraft iridium plugs. Explorer forum folks said NGK worked best in 4.0. Tried NGK, no more misfire.
You had a bad plug or damaged plug on installation. Has nothing to do with the brand.
Motorcraft spark plugs are made by AUTOLITE, which is now owned by FRAM.
I'm ready for Spark plugs SCOTTY/I've been following you on YOU TUBE for IONS! TY
I had sparkplug blow out of my 02 Expedition! Dented inside of hood! My Dad and I built a tool to fix it too. And it worked!
GOOD INFO!!
I was very lucky to have a smart daddy who taught me alot of common sense stuff like this!
It's good to touch on this so others that didn't get this kind of info as a youngster knows this when changing spark plugs!
Scotty, love your videos. I have learned more in the last 5 years than what I thought I knew in the past 55 years. Keep up the great work. Iove your energy!
I had enough of autorepair shops I got ripped off several occasions once installed wrong brake discs and my plates fell off because the OEM parts were received wrongly by the shop ....thank you scotty
I’ve been using Bosh platinum plugs on my old Shovelhead they never foul same set 4 years 👍
Your the man. I hope your around as long as I'am. From one mechanic to another, THANK YOU
I feel like Scotty is a neighbor. I go over to his house, plop down, have a stiff drink, and press "play" on Scotty's stories.
And you’ll never run out of content bc he makes 2 videos a day.... insane!
Great video. I have a Ford Flex that I changed the platinum plugs at 120,000 miles and replaced them with NGK iridium plugs You also have to remove the intake on it to get to the rear plugs on it. (3.5 V6)
I truly enjoy watching your show I've been working on cars for quite some time because I couldn't afford a mechanic thank you for all the knowledge you've passed on
Same, I've been doing mechanic work all my life and sometimes he reminds me of something I forgot long ago.
Scotty , you’re the best, especially for a non-mechanic person such as myself. You give me a better understanding of what’s best and how things work. Thank you!
You are the best
Give them to me lol
You are one of the most informative mechanics I have listen to since the two brothers from Boston.
I spoken with my brother about you and he told me that he watch your channel to and he’s mechanic we love your show
Do not forget to put no-seaze on the plugs if they go in an alum. head, or out comes the plug and the threads.
Same with cast iron heads, damn things will rust in and leave the threaded section in there
I was told by someone at a parts store that NGK is now putting a coating on their threads so I wouldn't need no-seaze. Does anyone know if this is accurate?
To my knowledge this is not true. My last set didn't have a coating. Always use an anti-seize compound on the threads, whether it's a cast iron or aluminum head! @@DanRoBurton
Daniel Robinson it is true, they recommend that you DON'T use anti-seize on their plugs because you can strip the thread or over tighten them
18 years of e36 plug changes, copper oem's so it's often, and no anti seize but always do it when the engine is cold. No Problemo (use a torque wrench!).
Good point, I always carefully examine the old part and the new part to make sure they appear identical before replacing anything
Why I love this man, he makes 10/15 min video full of explanations and without pause in between!
hugh, there is a lot of editing in some of his video, including this one... pretty obvious there is paused and different section used.
Haha cheers! I’ll just keep the old ones in. It’s a 20+ year old motorbike running fine on copper no-nonsense plugs. What a ride getting here! ✊
I have a 5.3l,and for some reason the owner before me put copper plugs in it, so I put the iritium plugs in (and yes the right ones for the car) what a difference it made.
Some people will cheap out on things. Scotty mentioned people putting lower octane gas in luxury car requiring premium, so I think people would do the same with spark plugs. I had to replace my own spark plugs some months ago from copper to double platinum because one of them eventually failed, even though I did not know the exact spark plugs and that was reccommended for my engine, my car runs even better now than before.
To some folks, cheaper is better. I buy for value, and a well-running car is much more valuable than one that runs crappily.
Same got a Chevy Tahoe 5.3
It depends on how you see things, copper is a better conductor, but have to be changed around every 30,000 miles. After that a drop in performance will be noticed. Still suggest staying with oem.
and you are foolish. i have a 5.3L Tahoe and went to Copper and its very fast and boost without KNOCK and PING or pre ignition. not a single race car on earth uses platinum or iridium. usa race cars still use copper plugs the very hot platinum would melt. but copper doe not last long , only 25k miles.
Hi Scotty, I really appreciate your hard work and devotion to provide the average DIY person the facts and knowledge to keep their vehicles repair cost down and running by their own hands. Thank you again for everything you do.
Here's an old school mechanic's bit of valuable information that will save you a world of hurt and money and down time, and if you practice this it will no doubt keep you on the road and not under the hood, when ever you go any where to purchase new replacement parts for your vehicle or what ever, always if you can have the old part with you when buying new parts, then your sure to get the correct part or parts...
Scotty, I have a 96 2.4 tacoma that all of a sudden has a back firing , I replaced plug's , wires cap and rotor , ck all of the senser's , . I did find the pick up on the distributor shaft was uneven so I filled it straight again and reset the air gap (.010 ) and checked the OHM's at the distributor connection's , It only does this in gear ( auto trans ) and under a load thank you Don Pardew
Been watching you now for about 3 weeks so far you've helped me fix my AC and the Mysterious gurgling sound underneath my dashboard what a trip that was well good luck to you be looking for you again
Years ago I had a 1978 Pontiac Grand Am. Decided to replace the spark plugs. We went to a store that had a food in one section, so my wife went there to get some groceries while I pick up some spark plugs in the other section. We got home, and got everything put away -- except that I could not find my spark plugs. Hmmm. They were on the receipt, so they had to be somewhere. Finally gave up looking. A while later I opened the fridge to get something to drink and right next to the milk was my pack of spark plugs. We both had a pretty good laugh while blaming each other for the mishap.
Craig C - well at least they didn't spoil sitting out on the counter
Good post Craig, that’s hilarious!
Yeh, I remember putting in the new (at the time) "high performance V" plugs in a well used v-6 motor back in the day. Paid twice as much as the reg plug and no better mileage and no noticeable performance boost either. As for today, didn't know about the new iridium plugs. Thx for the heads up Scotty.
Check the stock plugs not all vehicles use iridium plugs. Iridium plugs are high heat retention plugs. I put a set of iridium cause some guy said "these are the best" into my 1ZZ-FE engine on my Toyota Celica and the things burned themselves out in two years flat they were charred and crumbling like used charcoal when I pulled them out while diagnosing a multi cylinder misfire.
I talked to a buddy and we did some digging.
The 1ZZ-FE Toyota engine came with copper spark plugs that have a heat retention rating of 5..
The iridium plugs have a heat retention rating of 16.
Iridium plugs are used in engines where they heat up and retain the heat to help vaporize still liquid fuel mists near their spark to assist combustion especially at high rpm.
Not all engines are capable of using iridium plugs, they work and you won't see a performance difference between them and your old copper ones. But look into what type of plugs your engine came with from the factory and what their heat rating is before you switch save yourself the headache I walked into.
I tell you now. I didn't know and I paid for it. Now you know and maybe you'll be able to keep your change in your pocket.
I put lodge sparkplugs in my cortina GT and was very satisfied that was about 40 years ago
That is very good advice. Don't trust anyone. If possible take your old part's with you and compare.
Yes I agree iridium plugs will last 200K+ but i wouldn't recommend leaving them that long for too reasons. 1) they can be very difficult to get out after that long and often break which means the head has to come off and 2) Modern computer control systems are very good at adapting and may mask the symptoms of weak spark olugs so your plugs could be weak but you won't notice it and that compensation can cause the coil packs to wear out faster
Very true
Every project that Scotty experiments with comes across as a genuine honest attempt to get at the truth for the particular situation. Of all the people who are posting videos on car repairs, Scotty is in the search for a real viable solution in each of these particular situations. Gotta love him!
A friend of mine changed his plugs every time he drove his 56 Chevy Bel-Air 100 miles. That car was beautiful.
I love the view of the inside of Scotty's garage. Kind of like the theory about geniuses with messy desks.
You're the man and I've never been miss led by you keep it up Scotty
Back in the early 90s I worked at a Honda dealer had a teenage customer about a little Civic and back then the spark plugs that were really popular head for electrodes coming off the top I can't remember the name of the spark plug but they were supposedly burned better because they had a larger Spark. All I did to his car was making a rough idle so he came in to the dealer wanting to get his engine fixed under warranty because it was idling rough all we had to do is pull out his high-tech for electric plugs and put in the factory plugs and his car was fixed and yes we did charge him for it it wasn't covered under warranty
Those might have been those crapola Splitfire plugs, wow, did I see alot of issues with those back then working on cars.
I ran the Splitfires in an 88 Taurus I owned for a while. Traded it a few months after I installed them, so I never got to the point where they had a chance to fail. I learned about oddball plugs after my Excursion started spitting the Bosch +2s I installed.
Yes it was the splitfires now that I think about it. This kid must have gone right home from buying this little Civic and put those split fires in and all of a sudden the engine started running really rough and he probably didn't think hey maybe I'll just put the old ones back in. He just kind of looked at us when we handed them his bad spark plugs and like he had no clue. Anyway the point is Scotty's right you really best sticking with exact same Factory plug just can't go wrong with those unless they're Champions then I replace them with something else
Now now, splitfire plugs are awesome for small engines. He said EARLY 90s I was just a kid than but I do distinctly remember these Accel plugs. They were yellow insulator and were made in Korea.
@scottykilmer I did my Lexus RX300 plugs. I'm a DIY'er. The front 3 took me 15 minutes. The rear three took 3 hours and fifteen minutes. I didn't remove the plenum. Rather I laid on my belly and reached around to the rear plugs. I use a couple 4" extensions on a plug socket. I lowered the plug socket in with extension and plugged the 2nd extension in before it dropped down. No plenum removal.
Thank you for this information video. I have always believed in O.E.M. parts . I have work briefly as a contractor for Allison Transmission in Indianapolis and was impressed with the General Motors labs there in that facility. I got to witness the engineering process with GM and I understand the reasoning and importance of using the intended, test proven designs for original parts.
I love this , I’ve learned so much useful information. It’s just what us non-mechanics need . Thank you so much!
Scotty's experience shines through in videos like these. Such good information.
I have a 2005 Nissan Pathfinder and have to remove the upper plenum to change the passenger side plugs and you have helped me with so many projects thank you.
*"Haha, before even watching this video I know he's gonna say "haha, the best spark plugs, are the ones that come with the car, haha"*
Hey Scotty , you ,my friend ,are part of a MUCH NEEDED , dieing breed , I'm 55 , and I sooo miss the days of an "old school", 'mechanic that will see a potential problem , do the ' as long as I have access to it,may as well change\fix it ' mind set .
Hell , you guys should start a nation wide " club " of master mechanics , I'm dead serious ! Hell, start training those younger mechanics that really do want to be the best they can be ,
Just a thought , as always,thank you .
Ditto
"old school mechanics " are , literally , a dying breed ,
the problem with Tech's , and ALOT of other young ones , EGO''s and IGNORANCE ! , If it's not on the screen , they can't\won't help you , if there was a school , that implemented "old school" teaching , that truly would be
" priceless " !!!
@L. Stewart Not all of us work that way. Sounds like you were dealing with someone that was being trained "on the job"....which has become far too common a practice. Most of the kids that get all of their training in the shop, struggle to diagnose anything that doesn't generate a fault code. Most of them can't even read a multimeter.... God forbid you hand them a set of feeler gauges or dial indicators. Not that it matters, but that "PCU" is ECU. Just in case you actually care.
I only missed the sparkplug giveaway by a year and 3 months...
Lol
@@stevenkreiss2113 Don't feel bad I missed it too. Scotty is a wealth of knowledge about automobiles.
Sparkplugs are so cheap
miss it by 1 year 6 months LOL
@@paincreas2718 how do i refill the sparkplug?
Nice video sir,I have a 2015 with ngk plugs in it, but having a hard time with plug #8,any ideas, thanks
Thanks Scotty. You are an honest mechanic and that is sometimes hard to find. Plus a friend and that is as good as it can get!
NGK all day
In 1970s I ran motorcycle Enduro races on Bultaco dirt bikes. All the racers swore by NGKs. Used them in my 1972 Kawasaki H2 750 triple, too. Great plugs.
😂, not for toyota, toyota chooses the best denso for their engines
@@UnicornRyder04 you are correct AutoZone guy gave me Bosch double platinum my mechanic opened up my solaras hood and said only to use denso double platinum I took the others back they gave me the correct ones turns out the guy was new so it made sense he didn't know neither did I hahaha funny stuff
Ngk Maybe good for motorcycle but that's what alot of motorcycles came with from the factory but the man said put in the ones the vehicle came with which mean AC Delco for GM s Motorcraft for Ford's and Champion for Mopars or bests ones he mentioned iridium's for any vehicle if they make them for you make and model.
@@howardmccartney3549 Put Iridium in my Scion XB 50,000 miles ago and my son's Nissan P/U 30,000 miles ago. Pull one occasionally to check wear. Nothing significant yet. Also, Fords always had a rep for cold start hesitation in past. Took those Ford plugs out of my mom-in-law's 302 V-8 and put in Champions and it fired up every time.
I considered myself a fairly knowledgeable gearhead.
Never knew about irridium plugs. Thanks.
Welcome to the club:)
MAN you are good...wholly cow you just gave knowledge to a ole school motor head ...i have a 88 chevy truck with a 5.7 in it and its my baby and want the best for the old horse without breaking my pocket.But iridium plugs are worth it... And right now i feel its time for new plugs.And you just put me on a whole new level on sparkplug smarts ...Thanx Brother...keep on teaching you got a student for life.
I was led to believe (probably incorrectly) that, with today's fuels it wasn't necessary to change spark plugs. I have a 2004 Toyota Tundra V8 with 217, 000 miles on it. It had 100,000 on it when I purchased it eleven years ago. I have never changed the plugs and don't know if they've ever been changed, but it runs and starts well. 1. Should I install new plugs? 2. Considering the truck's age, would iridium plugs be overkill?
Change the plugs they wear out over time, not so much a fuel thing anymore. Before older vehicles would either foul or burn plugs due to improper tuning.
Don't fix what isn't broken. The enemy of good is perfect.
Very informative as always Scotty, thank you. I have a 2010 Crown Vic with 104K miles and somehow I don't feel like changing the spark plugs just yet. Car runs like a champ so why bother for now.
Yeah, don't "bother" to change those plugs !! Wait until your engine misfires at 75 mph on the freeway !! Or until you're stuck in a snow-storm -- or you're on your way to get laid !!
Don't jack around, man -- Your 2010 Vic takes the BOSCH # 9606 Double Iridium plug. Use NO anti-seize -- torque to 200 inch-pounds.
You're good to go for another 100,000 miles of trouble-free spark plug performance.
Chuck Hallowell i actually have the set of eight plus another eight for an e350 with the 5.4L. Both use same plugs.
You’re right maybe I’ll have to get to it soon.
Love your practical, nonsensical auto expertise (in plain English) that cuts through the conventional hypes and myths of automotive mechanics. Kudos for the dry humors!