Chevy Silverado 1500 5.3L Vs GMC Sierra 2500 AT4 6.6L Gas V8 MPG/Acceleration Test!
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- Опубліковано 12 тра 2022
- So I gave you 3 reasons why the 2500 was better, now let’s see how it stacks up against the 1500 for MPG and Acceleration! || Like || Subscribe || Share || #jbreviews #SierraAt4 #SilveradoTrailBoss
Special Thanks to Fitzgerald Auto Mall in Frederick, MD for allowing me to do this test!
www.fitzmall.com
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Trucks Used
2021 Chevy Silverado 1500 5.3L Custom Trail Boss
2020 GMC Sierra 2500 6.6L AT4 - Авто та транспорт
Hey buddy. Yes the 5.3 (L82 rpo code) in the WT, Custom and Custom TrailBoss is the carry over AFM (active fuel management) engine that came out in the 2014 model year trucks. It also has never been included in any of the service bulletins for the bad lifters that the DFM engines have (5.3 L84 rpo code and 6.2 L87 rpo code is also included) (trucks built from September 2020-March 2021, and then I think there’s one out for any model year 2021 DFM engine). So that’s the breakdown on that.
In more simple terms any 5.3 with a 6 speed is an AFM motor. Any V8 engine with an 8 or 10 speed is a DFM motor. The one exception is some 5.3s were built without DFM due to the chip shortage but they still have the same lifters as a truck with DFM, just not the software to activate them.
Now about the comparison, the 8 and 10 speed transmissions don’t really help with fuel economy. They just help with giving a bigger gear ratio range. The 6, 8 and 10 speeds all have very similar top gear ratios. The 6L90 is a much stronger built transmission than the 1500s 6L80 so its probably not as efficient. But the reason the HD truck got 6 less mpg is purely physics. It’s just a lot bigger. It also makes 46 more hp and 81 more foot pounds of torque. I’ll send you a picture of my truck showing my average fuel economy over about 3,000 miles that was mostly just driving to work (28 mile round trip) with two 360ish mile round trips and about 50ish miles towing a small utility trailer. But it averaged 15.1 mpg in those conditions with me driving. From the Facebook groups everyone says speeds above 70 really kill the mileage for these trucks and I can see that. They are like bricks lol. Good video though.
Thanks for the info, I do remember you saying that all the trans have similar RPMS although I felt like I saw one running a little less than these two trucks. I may have been driving at 60 MPH but I’m going off my bad memory though!
@@JB_WhoWork The GM transmissions are very similar. The 6L80 and 6L90 have a 0.67:1 top gear ratio. The 8L90 has 0.65:1. The 10L80 (1500 trucks/SUVs) and 10L90 (ZL1 Camaro, V series Cadillacs) have 0.64:1 top gear. So they are within 0.03:1 of each other.
The purpose of the 8 and 10 speeds (and 6 speeds for that matter) is to give a wider gear ratio spread for performance without sacrificing fuel mileage with the need for a short rear gear ratio. With 3 and 4 speed transmission you had to have a short rear gear ratio for the performance because you just didn’t have the gear ratio spread to keep the engine in its power band. They also had a slightly shorter overdrive gear (the 4 speeds, 3 speeds had no OD) at 0.70:1 or 0.75:1 depending on the transmission.
So any fuel mileage benefit you see with an 8 speed or 10 speed will 100% be because the rear gear ratio will almost certainly be taller when compared to a 6 speed. GM uses 3.23 rear gears for the 8 and 10 speed V8s and 3.42 for the 6 speed V8s. The max tow trucks get 3.42 in the 8 and 10 speed and the 6 speed max tow gets 3.73s.
Thanks bro, great info 👍🏾👍🏾
DFM came out 2018. I have a 2015 Yukon Denali 8 speed with AFM
@@Superoldschool74 yeah for the 2019 model year new bodystyle trucks. Any 2019-up truck with an 8 speed or 10 speed transmission will have DFM. If they have a 6 speed they will have the carryover 5.3 engine that has AFM.
The 8 speed came out in 2015 model trucks I believe. At first it was only available with the 6.2. Then for 2016 model trucks it was available on any LTZ trim and standard on High Country.
JB's channel deserves more love, only 35k subs, come on... Very honest reviews and provide ideas from alternative perspective. Plz keep up the good work black fella!💪
Thanks bro 👍🏾
Your videos offer superb value content!👍
Wow, that’s a big difference! Thanks for this
I'm on the road but will watch it later. Thanks for another good comparison video.
Thanks bro! You gotta send me your email
@@JB_WhoWork how do I do that in private I'm computer dumb
What's your email address
I just bought a 6.6 gasser. Only 125 miles on it. 13.5 is my best average so far. Good thing it's so nice looking.
That’s still not bad but it will go up as it breaks in 👍🏾
You'll appreciate it a lot more when it has 500k to 700k on it and is still running. Everybody complained about the 6 liter work truck version of the V8 that GM used when it came out as well because of the fuel economy compared to the others. The fact of the matter is it's designed to be abused and gas mileage doesn't matter in that scenario.
2021 GMC AT4, has 11k miles, getting 16 mpg as a daily driver, actual.
Usually the off-road variants have a lower EPA fuel economy rating. See the half ton ratings for the AT4 and Z71 vs the SLT and LTZ with the same motor. Likely has to do the all terrain tires, and aerodynamics… suspension my have something to do with it as well
@@alanc1490hd?
Thanks for the great comparison. My truck is a 2019 Chevy RST Z71 crew cab with the 5.3/8-speed. So far with over 27,000 miles on the clock, it has been a great truck overall. I set the B trip meter every oil change at 5000 miles so I can track my gas mileage over long time frames and conditions. I just checked it the other day and with 2800 miles since the last oil change it has averaged 22.1. Most of my driving is back and forth to work, some in town driving with very little highway miles. It does drop off in winter but still manages around 19mpg for the 5000 mile stretch in cold weather. And it still has the stock Bridgestone AT tires on it. A more highway minded tire may improve this a bit. The only real dislike I have with the truck is the rear shocks. Those off road biased Ranchos that came with the Z71 package were fine at first but now allow the rear of the truck to "pogo stick" over hard bumps. I think I will be upgrading these to some Bilstein shocks soon. I do like the HD truck but I really don't do any thing that requires that level of truck. For me the 1500 is a near perfect fit. I can still haul or tow light loads when I need to and otherwise drive in comfort getting relatively good fuel mileage. I might trade for a newer version at some point. Quite honestly, I like the way GMC carried off the upgrades this year than Chevy did. The 3.0 diesel also caught my attention. Just not sure if the improved fuel economy can justify the higher fuel costs for diesel fuel. I may have to see if I can find one to test drive and make a better decision.
With both of the 2500 HD's with the 6.0 only saw mpg of 11.8 to 11.9. That was the same for the 2013 I had with a 3.73 rear end and the 2016 I had with the 4.10 rear end and that was the mpg city and hwy. Big engine, more HP and torque = less mpg. I was surprised to see the 13.8 at the half way point. 14 mpg isn't super but a lot better than my mpg was in my 2 gassers. When I was towing I saw about 6 mpg nothing high than that. I agree with you on the transmission it should be at least an eight or ten speed for some better mpg when not towing. Thanks for sharing JB good video.
Very true, I feel like it had more room for 15 MPG with more gears but this truck has that reliability going for it and no one buys this to get great MPG anyways so it did fine overall 👍🏾
I have rode in a friends 2020 GMC 6.6 several times. We eeked out 15 MPG on a trip once but it’s 12-13 basically no matter how or where it’s driven. He doesn’t think it’s as strong as his old 6.0 but I think it is plenty fast. Nice comparison again bro!🇺🇸💪
That’s not terrible for a big gas truck but if I tested a RAM 6.4L on the same route, I think it would have landed in the mid 15 MPG range 👍🏾
Thats hard to believe he thinks the 6.0L felt stronger. It had 380 torque vs 464 for the 6.6l gas. 360hp vs 401hp as well, similar RPM as well. My guess, he's feeling the throttle smoothing GM seems to do in their newer vehicles.
Nobody ever buys an HD truck for fuel mileage😂😂😂
Lol
Nobody should ever buy a truck for fuel mileage
@@agentcarder hey my 4x4 3.0l diesel has gotten 32mpg that’s better then ANY vehicle I’ve ever owned! Heck I had a 2010 civic that got 25-30!
Chip D- Yea but which is better for the everyday normal use guy?? Definitely go diesel if you tow all day long BUT gas is cheaper for all around everyday driving NOT towing!
I drove my 2022 2500 6.6 gasser from Orlando to Columbus Ohio.. i got about 14.5 mpg. I than puled my 8500 pound bumper pull TT back and got 7.9 MPG. Truck had 6000 miles on it before the trip. This is about what I expected. BTW the truck did great, no white knuckles hardly any sway with my Husky centerline WD hitch.
I have a 2015 Silverado 1500 Double Cab 4x4 with 5.3 V8 and 6-speed trans with 111,000 miles. With today's trip of about 150 miles, half on freeway at 81 mph, I still got 19.2 average mpg. I agree that Chevy needs larger gas tanks on the 1500. It is frustrating to tow my travel trailer at 9 mpg and having to stop for gas every 220 miles. Still love this truck.
Thanks for sharing Phil 👍🏾
I’ve had both of these trucks. I would stick to the HD. It’s a work truck. Suck it up. It’s the way to go. 1.6million miles of experience between all my trucks. I routinely get 17 to 19 in my HD. Been as hi as 21mpg doing 53 on a long flat highway. Have the pic to prove it. People need to learn how to drive effectively and not hot rod the engine. Can’t beat a 36 gallon tank for my long runs thru the north east. FYI have the smaller 17 inch tires and the air maxed out on them.
Great post!
I had a 2015 Savanah 2500 van with the 6.0 V8. On a straight 600 mile highway trip it avg'd 20.5 mpg. I traded it in on a 2019 Yukon XL 5.3 V8 4wd. On the same exact 600 mile trip it got 24.4 mpg. I also went the whole trip in 5th gear to cut out the AFM. The rpm at 70mph was 2,200 rpm. I always lock out my Yukon in 5th gear city or highway. Keeps that damn AFM off! 5th gear is still a decent overdrive ratio. Both vehicles had/have 3.55 rear diff.
Last month I bought 2023 GMC HD Pro w/trailering package . I had 2500 in 90s then 1500 in 02 that lasted 300k but this 23 2500 truck is a Beast. I Wish I would've drove new 1500 & 2500. Todays 1500s have better towing then old ones. I tow race car and trailer total 6500K in summertime.
Damm the mileage is bad ); Should've watched your video before taking drive to PA(I got from out of state GMC to not pay over msrp and fees).
With the 2024 2500 6.6L Gas having a 10 speed transmission... do you expect it to get better mpg?
For a comparison I have 3 older Chevy trucks with 3 different engines. 04 Chevy 3500 8.1 gas 4.10 rear gears, 5 speed Allison, 11 mpg highway, 9 mpg city. 01 Chevy 2500HD 6.6 Duramax LB7 3.73 rear gears, 5 speed Allison, 23 mpg highway, 16 mpg city. 99 Chevy 2500 6.0 gas 3.73 rear gears, 15 mpg highway 11 mpg city.
I'm not sure why the gas mileage in the AT4 was that low. For comparison, we just bought a 2022 Custom model 2500 gasser. It has the exact same tires on it as the AT4 you tested. I looked at the B pillar stickers and ours is 121 lbs lighter than the AT4. We only have a little over 800 miles on ours and we just got 17.1 mpg with about 100 miles back roads and 66 miles on the highway with the cruise set on 73. The one difference that the AT4 might not have that we have is a tri-fold hard tonneau cover. If that's the case that the AT4 does not have a hard tonneau cover, that might be the difference. Just a thought for possible future comparisons.
I am a fan of the 2500, not a fan of the active fuel mgt idea. replacing an engine is a bigger issue than lower mpg's
Yea I would disable it if it were my car 👍🏾
My company work truck is a 2021 2500HD Custom 6.6 gas 4x4 with 8 foot bed and a lift gate. I don’t tow but I do haul loads up to 2k. With 59k miles on it the computer averaged 15.0 combined. I’m not a huge Chevy fan but this truck does pretty good. Just wish they would spice up the interior a bit. Even on the upper trim levels, GM interiors are lagging a bit.
Thanks for sharing, I’m thinking next year this will happen 👍🏾
I HATE WHEN THEY'LL HATE AN OBS!!🤬🤬🤬🤬🤬
THERE'S A COPYRIGHT STRIKE!!!😪😪😪😪😡😡🤬🤬
@20:10 I was thinking same but then I swapped my standard wranglers to Michelins and shortly after back to Trail Runners (same wheels ) ... those Wrangler Trail runners look aggressive but if you look at the numbers (same tire, same vehicle) the trial runners will have better revs/mile & lower weight then the Michelins ... I actually got better mpg on trail runners lol
Hi all Hd trucks come standard with 36 gallon fuel tanks plus you have a truck that is twice the weight taller longer and designed for working.
The HD weighs 2075 lbs. more than the 1/2 ton and has a 74ci larger engine. 6MPG is a fair trade for an HD.
GM doesn't even like to let you see which gear you're in unless you are manually shifting. I want to see every single temperature or voltage I can possibly see.
Amen! These things are super important to see especially towing 👍🏾
Best mpg I got on my 2500 was 17.6 over 400 miles.
Brand new 2022 2500 HD LT crew and I have about 180 mi on it. I am showing 14.5 but I drive almost all flat interstate to work. 20 miles each way. I'm thinking 16 to 17 when broke in? I also don't believe the display yet, we will see when calculated. Edit: Z71 pkg so I have the 20 inch wheels also.
Congrats on the rig, I think if you are on a flat Hwy for couple hundred miles around 70 MPH, you could get 16 - 17 but that’s driving it like a Prius lol
Take the difference in weight between the 2 trucks and put the weight difference in the half ton then do your mileage comparison, then see how well the half ton does mileage wise.
that would put the 1500 payload over by 3 to 5 hundred pounds. For all the high towing numbers for half towns, the payload is silly small.
24 gallons equals 480 mile range. 36 gallon tank is 504 mile range.
The 5.3 does have the AFM but it’s 2000 pounds less.
I had a 2015 1500 same body style with the 5.3l and traded up to 2019 2500HD. The 2500HD weighs about 1000 pounds more, has 1250 pounds more payload and gets 5 mpg less empty. Towing the same trailer, they both get within the same 8 MPG which is poor considering the small size of the trailer. (23 foot 5,500 Grand Design 17MKE)
Boy looking at your gas prices I’m in love (still too expensive but almost a $1 less than here) just got back from a 3000 mile trip to Minneapolis and $1480 was the gas bill alone. Almost .50 cents per mile… 🤬🤬🤬
I know I can get another truck that would get better MPG but how reliable will it be? How much would it cost over my current truck to get 1,2,4 mpg better? I’ve got something that works just sucks when looking at MPG. But other than that, it’s a great truck (well it would be nice to charge up hills better)
If we had a government who had a clue I’d keep the current truck without thinking. Hopefully prices will get back to the low $2 range in a few years.
I wish that were true but gas prices are probably not going down for a long time…
@@JB_WhoWork Sadly I think you are correct. Once they get it up there and with people accepting the high cost of goods we just show who really is in charge. 🙄
Stay safe!
It’s sad, we know what to do in 2024 though 🇺🇸🇺🇸🇺🇸
@@JB_WhoWork 💯
I just traded in my 2020 5.3L LT Z71 Trailboss. The LT has the 10sp transmission. I am now in a 2022 LTZ Z71 3500HD gasser with the 6sp transmission.
The Trailboss got terrible gas mileage compared to your test. At best I would get just at 14mpg highway when empty and about 8.9 pulling my 7000lb travel trailer.
The new 3500HD, which still only had about 1200 miles on it, has so far gotten about 13.5mpg empty on the highway and 9mpg pulling my travel trailer. I think after it's broken in a bit more those numbers are going to go up.
Maybe your testing in that Custom Trailboss, which is lighter than the LT, and those non off-road tires made that truck get better mph...
Wish you could compare 4.3 and 5.3 with 6 speed automatic
Forgot all about the 4.3L lol
@@JB_WhoWork and sounds like to me your videos you got Chevy fever
Lol, I want to own all 3 at the same time but once I get my income back up, I can make a decision 👍🏾
Ford brought back the big displacement 7.3 for the heavy duty trims. When will chevy bring back the mighty 454?
I think GM replaced 6.2 with 6.6. 6.2 used to be available in higher trim of 1500 LTZ.
They still use the 6.2L although I wish they would offer it for the half tons!
they still use the 6.2 in the half tons
Okay, it ain't a lost comparisson, but you made it that way by getting a base line 1500 and a premium 2500.
The 5.3 1500 vs the 6.6 gas 2500 is actually a good comparisson as far as the engine being right for the truck (just like manufacturers put 4 cilinders in their little cars or SUV's).
So here is some objective information...
1500 has a much smaller engine, less HP and torque, is way lighter, much shorter and low to the ground, has the suspension dialed for confort and is primarly made to be a huge 5 seater SUV and then have some utility sor the owner.
Now, the 2500 is much heavier, stiffer ride, longer, taller, has huge tires, more frontal area against the wind, larger engine and is made to first be a working asset and then be a family vehicle.
The 2500 is always gonna have a worse ride, worse handling, worse MPG. But it has some advantages...
It is taller, heavier and has a stiffer frame which makes for a much better place to be in case of an accident. Ir also allows you to ram into a car and move it out of the way in case you absolutely have to do it to avoid becoming a crime statistic. It has the ability to tow a lot more. If you olan to tow a heavy, tall and long trailer, you need an HD truck if not a dually, but a half ton wont handle it.
You also have the ability to load that bed much more than you would be able with the 1500.
So, safety and working ability for the HD truck.
And confort, MPG and overall ride quality for the 1500.
As far as sticker price goes... they are quite close. You can spec both trucks to be almost identical and pay around the same price. Sometimes the 1500 will actually be more expensive than an equal 2500.
So, pick wisely. As a daily in a city, the 2500 is too large to be convenient. But in a more rural environment, a working environment or if you tow on a regular basis, the 1500 is no match to the hd truck.
Now, if someone is thinking about getting both, please ditch the 2500 and go for the largest 3500 you can find with a diesel and consider the posibility of a dually. That is the ultimate work truck. And maybe ditch the 1500 and go for a mid size pickup, you wont miss it if you have an HD truck in the garage.
In defense of the HD it does weigh almost 2000lbs more than the 1500.....
100%!
I have the 3500 SLE gasser. I tow heavy about 30% of the miles. MPG is 13.7 after 33k miles. That’s with 34” tires.
GM needs the 4.10 option and an 8spd
💯
I just went on a 600 mile trip and averaged 16.1mpg in my 2500 I was getting 18mpg in my 1500
Diesel or gas?
@@spencerlyndon123 gas
@@bloodbushcraft2467 GMC 2500? What trim?
@@spencerlyndon123Chevy Silverado custom
Yeah but my friends and family are Gm owners and I’m the only one with the 5.3 6speed and I get better fuel economy then the others with the 8 speed and 10 speed
I have a 2022 AT4 HD. Getting 18-19 on highway.
That’s really good, must be a diesel lol 👍🏾
I have a 22 Chevy 2500 and unloaded I’ve had as good as 22mpg doing 55-60 down in North Carolina.
@@slaytanic921 Diesel or gas? Looking to get a 2024 2500 and cannot decide between gas or diesel
Gas or diesel?
@@spencerlyndon123 gas. That’s according to the trucks computer. I did t do the scientific fill the tank with gas. Wait 30 seconds then top off.
I would not buy a 2500 in diesel. I would go 3500 because the diesel will eat more pay load than the gas engine in the 2500.
Wonder if Chevy or GMC buys any more paint other than black or white 90% of them are either white or black
Lol! They were the first I believe to start painting their autos different colors back in the day to compete with ford
I ordered a new GMC van, told the sales dude any color than white !
I went with “Quick Silver” with the 6.6 L going to be one hell of a van.
I upgraded from a 1500 LT 5.3 to a 2500 HD LT 6.6. In the future, I would not buy 4X4. Not really needed.
I would always buy 4X4, trucks are the worse due to lack of weight out back 👍🏾
Market is insane, 50k for basic 5.3 trailboss...ouch.
For a USED one!
Lol!
I feel the 5.3 and 6.6 gas review is pointless. Not the same trucks or the same purpose! You are a 6.6 gas hater, and a 6 speed hater, period. Point I want to make is, I have one of these (2020 gmc 2500hd) and love it! I tow a fuzion 5th wheel, michigan to Florida, this year and it will do fine.( I NEVER WANT ANOTHER DURAMAX, IT JUST ABOUT BROKE ME)
100 percent this is the most reliable gm v8 being made right now. It’s not the 90’s anymore and diesels even though they make 1000lbs of torque they are not reliable
Your comparing oranges to orangutans man , they might be spelled similar but.., that 2500 isn't broken in yet , has more aggressive tires , weighs a lot more , and is geared lower , what did you expect ? The real eye opener here is that I used to have a 1970 Chevy Cheyenne C/30 pickup , 402 c.i. ( 6.6 liter ) big block engine , turbo 400 ( 3 speed ) automatic , with 4:56 gearing and got 13 m.p.g. ! No fuel injection ,no computer , and no doctorate degrees needed to work on it , over fifty years later , and we can't improve the mileage , but hey we now have cup holders . Big Deal !
This was for fun and I just invited you along. I have footage I’ve never posted and this is just some of it I kept from awhile ago. The 2500 is still the better buy assuming you can handle the fuel cost and registration differences 👍🏾
Mmmm the 6.6
I was about 13mpg in my 6.6l......the ride wasn't bad at all...I like a firmer feel actually.....thought it would be alot worse
The steering and brakes are quite a bit different than 1/2 ton.....vague and takes more effort to hit brakes but you get used to it.......so friggen solid though.....just a beefy truck and love the new height they come standard with.....GM HD are equal to about a 4" lift to their 1/2 tons.......
Waiting for market to mellow and refresh for HDs ......another cpl o years
That’s strong, so the HD was about 2” taller than this trail boss. Thanks for sharing 👍🏾
@@JB_WhoWork much taller than TB....same as your video actually.....I had a GMC 1500 with 3 in lift and my 2500 was taller stock easily
Why don't you provide 0-60 times?
I guess it hasn’t really seem to come up, I could look into a draggy or other device
7:41
18:49
They where pretty close but I feel like the 6.6 got it.
HATE WHEN FORD KEPT THE 6.2 RAM KEPT THE 6.4 YET GM DIDN'T KEEP THE 6.0!!!😡😡🤬🤬I HATE GM 0.0/10
The 6.6L is essentially a better 6.0 👍🏾
@@JB_WhoWork NO!!😔😔
This guy's got some anger issues
I HATE WHEN PEOPLE ONLY SAY "CHEVY/GMC 1500/2500/3500" AND NOT SILVERADO/SIERRA I HATE WHEN BEN HARDY DOES THIS!!😡😡🤬🤬