very nice vid, its almost certain the oil drain holes behind the piston rings will still be clogged, very hard to get that carbon out of those tiny holes. So its likely the issue will come back fairly soon, have to clean out those little holes behind the oil rings. But how to do that? that is the big question, I have a theory on how it might be done, I haven't tried this but here goes: Mix seafoam/redline in oil ( high concentration as possible) Fill oil to a very specific level ......just below piston top face.....when piston is at bottom of stroke ( when engine is turned over the oil will hit the inner side of the piston and clear those clogged oil holes, that is the theory) Engine needs to be cranked at low rpm for how long is the question, I'm guessing that using just starter motor for power, it might need to be rotated for 12 hours or more.....this is the tricky part to solve. Please consider this idea To really solve the issue, requires take out pistons and drill more oil holes, and make the ones that are already there bigger in diameter, this is source of the problemo.
You do realize you need a battery charger on battery when doing a compression test, because by the time you get to last cylinder the charge on the battery is a lot lower especially on a V12. 😉 Starter’s draw a lot of current even more when hot. A good point to sell customers on regular maintenance not the recommended one but the extreme one which is what there short trip condition calls for. Very good video. 👍
When you say crank the engine after 12 hrs, do you mean put all the spark plugs back in and then crank the engine? Also when you say continue in 2 to 4 days depending on how bad the rings are stuck do you mean in 2 days start putting the cleaner in each cylinder again every 12 hrs, or is the interval 1st time wait 12 hrs, second time, wait 2 days, third time wait 2 days? And do you crank the engine after each time?
I have the same problem and changed oil every 3000 miles or less using full synthetic oil. It’s that generation which have ring problems ranging from 2005 to 2012 I believe. They were trying to work on emission control system, but in return cars, suv s burn more oil into atmosphere.
@@chiya2006 sorry if you have a I believe 2005-2009 rav4 it will burn oil at some point, 2010 and up will not have these problems as long as oil changed every 5k
If the cylinder walls are scored/ scratched, this will do little good if any. Toyota does not provide a way to fix the cylinders. They supposedly make a new ring/ piston kit for some engines, but it is not cost effective.
The cylinders are never scored/scratched. The oil rings were a poor design coupled with not enough and too small drainback holes in the piston oil ring groove. For under $800 and a weekend, you can install the new pistons/rings. It's not a particularly difficult engine to work on. Given what used cars are going for it is most certainly cost effective.
90% of time problem with burring the oil on Toyota is sticky PCV valve so make sure change it first since it is cheap, and it is the main problem .good luck
It is just a temp. Band aid. Toyota manufactured new set of piston rings so still engine needs to be unhauled. You will have to do this procedure every oil change.
@Hans Enrique, Updates will show you, stay tuned. If it's holdup even one year, people prefer to do it once a year instead of engine overhaul and of course the cost.
@@hansenriquerach-mendoza3515 Emission could have other reasons and failures as O2 sensor, misfire, injection problems, cathalitic converter and more. If the reason for high co2 and NOX is Just oil burning, it should pass after you FREE UP piston rings. Still after one week, we check oil and no sign of burning.car drove around 1000 km now.
@seapeddler : Please watch previous video (Sticky Rings detergent) you will get the idea. VVT gear on very first toyota engines has designed poorly. I will check VVT noise at cold start on 2 weeks update. (I used seafoam very carefully in crankcase at start of video), I did it because of cleaning oil passages on piston and carbon Buildup around lower oil rings, but it should clean VVT passages too. Thanks for watching.
Question why do the check engine light an 4wd an slippers lights comes on and when you drive over 40 I feels like the car shakes and I have gotten a tune up it was doing fine until it was very cold today please help
That might be the sign of some kind of a faulty system like catalytic converters due to the prolonged oil burn. those lights as you mentioned is toyota way of warning you and is kind of its way to bring you to a stop. I had the same issue. Sometimes it could be as simple as a disconnected vaccum hose near the air box
Have read people are using BG Products EPR . Pouring into their oil before an oil change . Running the engine at idle at 2000 RPM for ten minutes , then changing oil and filter . I suppose maybe doing this a few times to clean out gunk around piston rings .
@ Peter Rudy Hello again, This is an VVTI engine, I did seafoam in crankcase to free up oil rings for 20 min( watch video), Here we had to clean up upper rings too. Watch the second oil change and the color of oil even after 20 min (Idle).
Mine burns so much oil I don't need to do an oil change lol it's basically new oil every damn time I add oil. Literally, that's how low it gets. 5-600 miles needs 2 quarts. I've been monitoring it. And yes, I've done the big 3 seafoam clean (crank, fuel and Intake)
My 2008 Camry is in the same boat! i'm also wondering since it's so far gone, is it even worth buying the more expensive synthetic oil at this point. Thinking of adding the cheapest standard oil. i'm at 160K miles.
very nice vid, its almost certain the oil drain holes behind the piston rings will still be clogged, very hard to get that carbon out of those tiny holes. So its likely the issue will come back fairly soon, have to clean out those little holes behind the oil rings.
But how to do that? that is the big question, I have a theory on how it might be done, I haven't tried this but here goes:
Mix seafoam/redline in oil ( high concentration as possible)
Fill oil to a very specific level ......just below piston top face.....when piston is at bottom of stroke ( when engine is turned over the oil will hit the inner side of the piston and clear those clogged oil holes, that is the theory)
Engine needs to be cranked at low rpm for how long is the question, I'm guessing that using just starter motor for power, it might need to be rotated for 12 hours or more.....this is the tricky part to solve.
Please consider this idea
To really solve the issue, requires take out pistons and drill more oil holes, and make the ones that are already there bigger in diameter, this is source of the problemo.
You do realize you need a battery charger on battery when doing a compression test, because by the time you get to last cylinder the charge on the battery is a lot lower especially on a V12. 😉
Starter’s draw a lot of current even more when hot.
A good point to sell customers on regular maintenance not the recommended one but the extreme one which is what there short trip condition calls for.
Very good video. 👍
Looking forward in 2 weeks update.
Toyota sells revised short block engines for $2300 or so, which is the only real fix for this oil consumption issue.
Can you give us a link? I can't seem to find a good one anywhere & fix is at or near double this price.
Great video. Thanks. Please give us an update when you can!
berrymans seems to be best at dissolving carbon, seafoam/redline and berrymans might be even more effective mix
When you say crank the engine after 12 hrs, do you mean put all the spark plugs back in and then crank the engine? Also when you say continue in 2 to 4 days depending on how bad the rings are stuck do you mean in 2 days start putting the cleaner in each cylinder again every 12 hrs, or is the interval 1st time wait 12 hrs, second time, wait 2 days, third time wait 2 days? And do you crank the engine after each time?
Make sure to change oil every 5k miles to prevent this
I have the same problem and changed oil every 3000 miles or less using full synthetic oil. It’s that generation which have ring problems ranging from 2005 to 2012 I believe. They were trying to work on emission control system, but in return cars, suv s burn more oil into atmosphere.
@@chiya2006 sorry if you have a I believe 2005-2009 rav4 it will burn oil at some point, 2010 and up will not have these problems as long as oil changed every 5k
@@hayden93mine is 2010 model, still has the same problem
If the cylinder walls are scored/ scratched, this will do little good if any. Toyota does not provide a way to fix the cylinders. They supposedly make a new ring/ piston kit for some engines, but it is not cost effective.
The cylinders are never scored/scratched. The oil rings were a poor design coupled with not enough and too small drainback holes in the piston oil ring groove. For under $800 and a weekend, you can install the new pistons/rings. It's not a particularly difficult engine to work on. Given what used cars are going for it is most certainly cost effective.
@@robertthomas2942 The bores are scored / scratched / damaged.
If you like I can post some links to YT video's showing this.
If you catch the problem early on, you can limit the damage.
Glad to see you bro, nice work
Thanks mate, hope you enjoy my videos 😃
good job!
I wonder if BG EPR 109 can do a better job...
90% of time problem with burring the oil on Toyota is sticky PCV valve so make sure change it first since it is cheap, and it is the main problem .good luck
@ klaiden morad,
PCV valve changed 6 months ago as mentioned in previous comments.
Thanks for watching.
Wrong, the enigne had faulty piston rings from the get go.
2 oil and filter changes with diesel 10 30 will sort it but be prepared to pull the pan and clean out the muck lol
It is just a temp. Band aid. Toyota manufactured new set of piston rings so still engine needs to be unhauled. You will have to do this procedure every oil change.
@Hans Enrique,
Updates will show you, stay tuned.
If it's holdup even one year, people prefer to do it once a year instead of engine overhaul and of course the cost.
Be my guess, but wait until you the DOC gets state emission inspection report. Shall it pass?
Lol bet you pvc valve is bad or someone replaced it with wrong one
I watched one go through 3 engine overhaul and still burned oil final fix factory pvc valve
@@hansenriquerach-mendoza3515 Emission could have other reasons and failures as O2 sensor, misfire, injection problems, cathalitic converter and more.
If the reason for high co2 and NOX is Just oil burning, it should
pass after you FREE UP piston rings.
Still after one week, we check oil and no sign of burning.car drove around 1000 km now.
This 4 cylinders toyota are known oil burners at high mileage
Just start running full synthetic, it will clean carbon out.
Is CSL additive still available?
It will fix scratches, but my cause VVT issues ?
Won't 5W30 diesel oil do the same trick ?
@seapeddler :
Please watch previous video (Sticky Rings detergent) you will get the idea.
VVT gear on very first toyota engines has designed poorly.
I will check VVT noise at cold start on 2 weeks update.
(I used seafoam very carefully in crankcase at start of video),
I did it because of cleaning oil passages on piston and carbon
Buildup around lower oil rings, but it should clean VVT passages too.
Thanks for watching.
What year Rav4 ? This isn't really a toyota issue its any engine with poor fuel ?
Some Toyota engines are well known for using a lot of oil
2007 2008 and 2009 years
@@meeder78 Do toyota 2023 models have oil consumption?
What year is this rav4?
00:09
@@DoItYourself-Becreative2010 has 2.5, not 2.4. 2.5 not known for this problem unless car was not maintained.
2az?
Question why do the check engine light an 4wd an slippers lights comes on and when you drive over 40 I feels like the car shakes and I have gotten a tune up it was doing fine until it was very cold today please help
@Lilimommy1980 , read the codes with a code reader first!
Check your brake fluid, engine oil, transmission fluid level
That might be the sign of some kind of a faulty system like catalytic converters due to the prolonged oil burn. those lights as you mentioned is toyota way of warning you and is kind of its way to bring you to a stop. I had the same issue. Sometimes it could be as simple as a disconnected vaccum hose near the air box
Have read people are using BG Products EPR . Pouring into their oil before an oil change . Running the engine at idle at 2000 RPM for ten minutes , then changing oil and filter . I suppose maybe doing this a few times to clean out gunk around piston rings .
@ Peter Rudy
Hello again, This is an VVTI engine, I did seafoam in crankcase to free up oil rings for 20 min( watch video),
Here we had to clean up upper rings too.
Watch the second oil change and the color of oil even after 20 min (Idle).
@@DoItYourself-Becreative I was just mentioning it as others have used it for " stuck rings " .
I thought you would change the piston rings.
@Yamawwad
This is for avoiding cost of piston replacement, be safe
100% pure petroleum, you can use kerosene instead!
Mine burns so much oil I don't need to do an oil change lol it's basically new oil every damn time I add oil. Literally, that's how low it gets. 5-600 miles needs 2 quarts. I've been monitoring it. And yes, I've done the big 3 seafoam clean (crank, fuel and Intake)
😂😂😂 I had a Lexus that was like this . Just poured in new oil and called it good
@ eye 4 an eye , did you changed PCV?
@@DoItYourself-Becreative yea. per scotty kilmers advice i always do that when i buy a car. didnt change anything
More than likely the bore is damaged, so the engine is pretty much done.
My 2008 Camry is in the same boat! i'm also wondering since it's so far gone, is it even worth buying the more expensive synthetic oil at this point. Thinking of adding the cheapest standard oil. i'm at 160K miles.