The 2024 Chevy Silverado HD Duramax Diesel Is Properly HUGE...But Is It the KING of MPG? 

Even with 35 gallons, that's still nearly 620 miles of range. Not too bad.

Andre, Mr Truck, thanks for putting in the effort on these videos. Really interesting content and insights.

Once again, it’s always a good Saturday morning waking up to Andre and Mr. truck!

You put Mr. Truck and Andre = Instant like from me. Best combination and these guys have chemistry.

I just like how the camera isn't cutting off while driving

Why does Andre’s sense of humor get better every year lol

Great Video as Always. Love the shirt Mr. Truck! Nothing like a good truck in the good ole USA!

I love the Denver 100. Put the 2024 Chevrolet 2500 gas 10 speed on the 100 to see what it gets.

Always a good Saturday with Andre and Mr. Truck!

Speaking of fuel fillers, I was surprised to find out on my 2022 GMC 1500 with 3.0 Duramax that the big semi nozzle fits! Just be careful with those as you can get a pretty good overflow if you go all out with them!

I have gotten 18.8 mpg in my 2024 denali 3500 dually, doing 68 mph. With adaptive cruise engaged.

You need to run the Ford on this same loop. Ford’s average over 600 + miles is really impressive, curious what it would do on this loop.

Thank you, love when you do the real world tests

I’ve been seeing similar mpg in my 2024 2500 Silverado. I’ve gotten 18ish mpg highway and a little over 11 towing. Been a solid truck so far.

Good video, always enjoy your comparisons. The rear gear ratios were mentioned… not sure what final OD is on both GM & Ford 10sp; but still a very significant difference in the 2 Rr Gear Ratios. The Ford was higher gear ratio, normally equates to less mpg. When doing a MPG test, helpful if you included the RPM at say 60 & 70mph… total combination Trans, Rr Diff & Tire size impact MPG a lot. The difference of .1 was insignificant… ambient temp, winds, etc can easily be .1-.3 difference.

I love new technology...no texting and driving but engineers think a movie screen in the dash is ok. And we can flip between screens and options while we drive. Oh well. Still a beautiful truck and im jealous. Thank you for what you guys do!!

Thanks guys for another great video! I am impressed by all the heavy duty trucks and most of the half tons as well. What is disappointing to me is the mid size trucks. Had one and its mpgs arent any better than the half tons. Sad. And now few if any have 6 foot beds. Doesnt seem like there is as much investment in mid size truck powertrains. Labeling them as Life style truck tells me everything

Please do a 100 mile loop MPG test on the new L8T gas engine with the 10 speed automatic. I'd be interested to see how it compares to the Duramax MPG wise.

Just got rid of a 2017 Ram. Every time I turned around I was spending $$$. Traded for a 2024 Chevy 3500 LTZ single wheel crew cab standard bed. Really liked the truck. Only have 900 miles on it as of right now. Been a Chevy guy all along.

Mr.Truck and Andre are THE bomb!!!!

Wish you guys would do more Gaser HDs

There's a few videos out there that disassemble both of the heavy duty 10 speed transmissions (Ford and GM) to compare and there are significant differences in some of the the hard parts. In some areas, the Ford is more robust. Point is, there's more differences than just programming.

I would like to be educated on when do the throttle body injectors work in every day driving as compared to the direct injectors in my eco-boost F150. I've read that the direct injectors kick in when you call for more power.....besides heavy towing and hard acceleration...what calls for more power?

Our 3500 has been on order for over 3 months from the GM acceptance e mail.

2015 GMC Sierra 3500 HD Denali Crew Cab Dually Long Bed.... tuned and completely deleted, I get 24.1 mpg with the cruise set on at 69 mph. These trucks respond so well to being deleted and tuned properly.

I think you have to do longer loops on these diesels, basically because of regen. If one had a regen in between and the other one did not your comparison will be way off on a 111mile stretch

Loving the Denver 100.

Nice truck. Nice color. And two Nice Guys I like the Nice hats 👒 ❤

I have a 2024 same color, but gas engine and I’m getting around 16 to 17 on the highway

I'd like to know how the ride quality is compared to the Ford F350 dually.

You also have to consider the horse power and torque difference between the two, for highly optioned Limited Ford to (.1 difference) get almost the same fuel mileage as the lower HP and torque Chevy that's out standing results from the Ford power train.

That's about the same mpg of the 2023 Chevy Colorado ZR2. I think I'll keep my diesel.

can you do the new 6.6 10 speed gasser please? Maybe ford 6.8 vs 7.3?

I have a one ton van with a 6 L GMC that I get 14.2 miles per gallon every day it is a 2014 I use it for work

Hey TFL. Plenty of videos already of both the Ford and GM 10speeds apart. The short answer is no , they aren't the same. Both GM/ Ford scaled up the their co-deisgned half ton transmission. But they have different design philosophies. GM went for efficiency/quietness in the design of the hard parts. Allison basically had input on the valve body and pump design in the GM transmission. The Ford is a much heavier unit. It is built much stronger than GMs, but it's not as smooth or efficient.

Would be interesting to see the difference when u put the fords in eco vs normal if u save that much or not

I’ve got a 2015 3500hd. Range is great but the days of needing fuel before I have to pee are gone....

Kent you're looking good! Keep it up!

I’m curious of the mileage once Deleted. I’m guessing a 20% improvement.

What GPS app is that?

My 22 says it can go about 640 miles on a tank pretty impressive

Im curious to see what the new 2024 Ram 3500 HD mpg is?

Sinclair left Georgia a long long time ago.

Try the flat bed dually duramax chassis trucks with dual tanks

Good video, im on the fence with what dually to get since Ford has a good diesel again after over a decade of duds That MPG sucks, thats the problem with the Auto's. My 04 Duramax and 14 Cummins do 19.5 arond town. Both are 3500 crews 8ft bed 6spd manual Any why the surprise it fits a big truck nozzel, every diesel ive ever seen or owned has the big fueler hole Even my 85 Chevy Celebrity with Olds diesel. Lol I might give Ford a try, never had a new one, im a Chevy guy but with all the Electronic issues im hearing about along with emmissio.n issues

This would be a nice truck camper hauler!

Maybe check into the ZF trans made by the German ZF factory and the one built under license by Fiat/Stelantis.

Hi. I have been keeping my eyes on a 2017 ram laramie turno diesel with 98k miles. Is I a good move to buy a used diesel with that many miles. Ford dealer used vehicles is selling this truck. They say the truck has passed all inspections. Is that something I can trust?

You shouldnt let the truck grade shift on an mpg test. Its just like braking.

That is highway miles. My 24 LTZ diesel not dually is 14-15 MPG average. It's 8-10 MPG city + stop light idling. It will do 18.5 MPG 75 MPH highway/interstate. 20 MPG if you're going under 60 MPH on a mostly flat highway long distance. Towing is a big variable, but basically towing light (3-4k) it's -2MPG and towing heavy (10k+) it's -10MPG. Computer meter is accurate within .5 MPG so I stopped manually calculating...seems like just a variance of when pump cuts off. Honestly not too impressed expecting better and wondering what gas trucks are getting...Tank fills up to 37 gallons when not even empty despite being supposedly 36...IMO seems like a 40 gallon tank to me or hopefully gauge isn't that off. Realistically 550-600 gallon range empty and probably half that towing max... that is 5-6 hours+ of driving when towing really heavy and many will want to stop got a break by 5 hours or wont be driving for than that in a day so it's fine...can get an aux or transfer fuel tank or just throw a few 5 gallon totes in the bed if you want more range...anyone who drives+tows that heavy long distance probably will already have a 100 gallon tank in the bed...especially a dually.

Interesting that i have a half ton gm 2021 with ten speed and 3.0 and 2023 F150 with ecoboost 3.5. Love both trucks. However the gm ten speed is much smoother than the F150 and my workers agree as well. Not sure why but had the ford in for reprogramming at 9500 miles. Still not as smooth as the gm for some reason.

What GPS are you using?

I travel with GM is you raise the back seat on a Crew cab, you can't get a flat floor.

Most ppl just run 75-80mph everywhere all day in Texas!

Now test it without any emissions equipment and a retune for MPG. I think these trucks would be well over 20 mpg.

Good looking truck.

Hey……what is the watch Mr. Truck wears???

Of course the rear axel ratio makes a big difference in fuel economy (good or bad based upon how tall that gear is). You can't fight physics. The primary job of these new 10 speed transmissions is to get to 10th gear as efficiently as possible. Once there, the biggest difference in fuel economy will be determined by the rear axel ratio. That's why we always ask about rear axel gears.

I like Kent’s shirt. 🇺🇸 Andre is also the most American Russian I know.

No Sinclairs in south central TN.

Honestly I'm less concerned about mpg's and emissions and more concerned about reliability. Will this truck earn it's keep or will it be a lease-mobile?

The previous DMAX was subject to excessive soot that would clog the particulate filter to the point that regens, even forced regens wouldn't clean it and it would go into walk mode. Two to three weeks in the service dept to get it fixed. This would occur on long haul towing trips and was a big problem. This new Dmax version evidently has that mulligan cured.

Yea I’d like to see ford and ram run the same loop.

That’s really decent gas mileage for a HD pickup, almost as good as my V6 Nissan!

Amazing how much Andre has grown in Knowlege.

I never seen a sinclair in Maine😂

My ram rarely gets to 14mpg average, 5500 with 4.89 though

All that eco mode does in the Ford changes the shift points and throttle input(like sport mode adds throttle angle). Axle ratio isnt as critical as it once was. A 3.55 in the Ford is the same rating a 4.10 in the Ram, a 4.10 has a huge mechanical advantage. That Gooseball 4"aft of axle is the WORST idea in the HD world. Nothing like removing weight from the steering axle. Especially when towing 20-25k lol. Rockstar ideas, lets add 4"inches to the bed length(so its 1" longer than the Ford) without actually engineering the truck properly(adjusting the wheelbase). That 10L1000 is the same internals as the Ford 10R140. Clutch material is different(because the fluid is different) the operating temps are completely different(cooling stratagies are polar opposite). In the end the planetary sets are the same, the rest is unique to each transmission. Its not a conspiracy, its smart business(collaboration). I was saying they were the same transmission right from the day I compared the ratios on paper. These things are that hard to spot. Its like the Ram HD hasnt changed much since 2011, all the trucks are on the exact same wheelbase, interior space, and overall dimensions. Same applies to the GMT800, 900, K2XX Trucks. All the same with marginal improvents(and very clear re-skins)

When it comes to trucks, I'll take a firm shifting automatic over a soft shift every time. Slow soft shifting makes more heat and extra wear in the clutch packs.

Watched a video from GM engineer. 1/2 tons are a collab w Ford. HD trannys are a collab w Allison…. It’s not the same as the 1/2 ton. The HD tranny’s seem smoother on the 2500 and 3500 GM than Ford Superduties…

The fuel tank is way too small. I bought a 2022 Duramax new and immediately dropped fhe fuel tank and put the larger Titan tank in. I dont understand why GM thinks that a 200 mile range is acceptable when towing very heavy...

Pull the max payload on the trucks and test it

With my 22 ps and 3.355 gear i can get 20-21 on flat ground at 65 mph. So i end up getting 16.5 at 85 mph lol

Sinclair big western petroleum supplier.

I'll spend some of the 25k in savings on a auxiliary fuel tank.

Does Altitudes affect fuel Mpg? 5335 elevation I’m 2500 in elevation

I finally got Andre to come around on the notion that rear gears mean nothing now with 10 speed transmissions! Success!

Something odd- why do they have the speedo go up to 140? Like what’s the point? Truck will never see past 100 realistically. It’s just weird

200 miles would be a better test.

crazy thats only 1.7 MPG better than teh old 6 speed 6.6 gasser. and only 2.5 better than the 7.3 Ford......

.1 difference in MPG on two different days on at different pumps and different courses isn’t really a measurable amount. Remember that Ford was coming from Detroit so it was a steady climb if they did it from Denver to Detroit it would be a different result. I’m an Owner Operator truck driver in Colorado and when ever I head east I always get better MPG than coming home, it’s not a huge difference but there is a difference.

Shake the truck after it clicks on a fill, then fill, then shake, fill again etc

17.7 MPG. 🤔

This is 1 mpg better than my GMC 3500 DRW 6.6 gas..

ford still killing em making more power using same fuel

The Ford should be ran on the same loop.

If the Ford 350 had the same curb weight and same options than the Ford would get better mileage!, cause you would be comparing equal weight. Common guys you use to be more honest and fairer. Eric Pa

Why are they putting these panoramic roofs in everything, especially trucks ??? They’re nothing but problems!

In the TFL recent drag racing the Ford used was the High Output diesel engine over the standard Ford diesel. For a more fair comparison let’s see how Chevy/Ford stack up when comparing apples to apples. You could also have Gale Banks tune the GM to 500 plus pony’s and run the races again. You guys need to drop the overly apparent Ford bias. It’s so evident and hinders the objectivity of your video content.

Ford finally got smart and got Chevrolet to show them how to build a good quality transmission

Behind the axle? Seriously?

It's about 12 thousand pounds with all tools in it

There are NO Sinclair stations around here..

I can get 16mpg in a 05 powerstroke with 37's. 18yr newer and stock should do better.

That gas station is trash in California dude’s

Mr. Truck “want to do the HONORS?? N PAY !!!!! 😡😡

Not going to have to worry about it. Gm has lost my support by pricing themselves out of the realistic market. 50 years gm and not buying another

Nice🇸🇦

Mr. Truck is a great man,, good guy,, but that damn watch,,,, good Lord man,,, it's FUGLY !! Somebody steal that ridiculous thing off of him and crush it.. lol Mr. T would have rejected that thing in 1978 !! :)

If you're buying a truck for mileage, you probably can't afford it.