[19trax95]

I assume that the statement “I own a 6.0 gas crew cab 2500HD” answers this question!

Lol. Pretty much. Only answer that would explain itself better is owning an 8.1 or old 454 haha.

 

[i82much]

Lol. Pretty much. Only answer that would explain itself better is owning an 8.1 or old 454 haha.

i have a 396 in a 72 k10. makes the 2500hd seem like a prius ...

 

[scottl]

If I was worried about MPG I wouldn't be driving a V8 4X4

 

[hot2na]

yes! i average 21 mpg even with afm turned off with a range...5.3 2" lift

 

[2011chevy]

Yes I am happy with it. I get 21-22 MPG doing combine city/highway. 24-25 on the highway.

 

[Z15]

I don't obsess with fuel economy. I driven a truck for most of my life (50 yrs), I will always drive a truck. That said, I looked at my DIC which has not been reset from day 1 (12-07-20) and it shows 19.6 mpg over the last 11,000+ miles. It will show up to 23mpg when cruising at 65mph or less. I drive 2-Lane 98% of the time, few stop lights around here to sit and waste gas waiting for them to change. I also drive in 4wd AUTO during the winter when roads are bad (75% of the time) so that figures into the 19.6. The truck is 100% stock, no modifications nor will there ever be. Only thing that is not stock is I use AMSOIL 100% Synthetic Lubricants throughout for the best possible efficiency.

2021 Sierra Denali CC 4wd Ultimate 6.2L 10-sp trans. No truck payments so $100-$150 per month in gas is not going to change my mind

 

[58nate]

I got the truck (15/21 mpg) for work days only and have a Sonic LTZ 6spd turbo for the days I don't actually use the truck. Have hit 42mpg highway & 32 city tuned at 21psi. I wish gas was cheap enough to daily drive the truck but I can save $20+ dollars a week if I use the car.

 

[CarParts.com]

My truck is rated 15/19 by the EPA. I get 13/18 in usual driving. One time, I actually got 19.6 on the highway. I don't drive it a lot so it really doesn't matter but it's a truck so it is what it is. I don't expect great mileage.

My wife's new midsize AWD SUV is rated 26/33. We're getting 28 around town and have gotten 36 on the highway. No complaints there! We hope it might even get a little better after it's broken in a bit (only 5,000 miles on it so far). It's the first vehicle I've ever owned that consistently gets better MPG than the EPA estimates.

That is surprising! What kind of SUV is it?

 

[CarParts.com]

I assume that the statement “I own a 6.0 gas crew cab 2500HD” answers this question!

Yep, that's all we need to know

 

[Bradley21sanders]

Wait yall keep up with mpgs and stuff like that? all I know is sometimes I fill up twice a week 🤷‍♂️

avg 13-15 depending on the speed. Honestly higher than I thought considering 4.56 gears and oversized E load tires on a crew cab. As long as we stay double digits in the ole girl she can stay.

Cam and headers though.... would be nice mmmmmm

 

[CarParts.com]

i have a 396 in a 72 k10. makes the 2500hd seem like a prius ...

Guessing the K10 is in the single-digit mpg range?

 

[CarParts.com]

yes! i average 21 mpg even with afm turned off with a range...5.3 2" lift

Yes I am happy with it. I get 21-22 MPG doing combine city/highway. 24-25 on the highway.

Impressive for a full-size truck!

 

[CarParts.com]

I don't obsess with fuel economy. I driven a truck for most of my life (50 yrs), I will always drive a truck. That said, I looked at my DIC which has not been reset from day 1 (12-07-20) and it shows 19.6 mpg over the last 11,000+ miles. It will show up to 23mpg when cruising at 65mph or less. I drive 2-Lane 98% of the time, few stop lights around here to sit and waste gas waiting for them to change. I also drive in 4wd AUTO during the winter when roads are bad (75% of the time) so that figures into the 19.6. The truck is 100% stock, no modifications nor will there ever be. Only thing that is not stock is I use AMSOIL 100% Synthetic Lubricants throughout for the best possible efficiency.

2021 Sierra Denali CC 4wd Ultimate 6.2L 10-sp trans. No truck payments so $100-$150 per month in gas is not going to change my mind

Almost 20 mpg with the bigger 6.2L V8 is awesome

 

[CarParts.com]

I got the truck (15/21 mpg) for work days only and have a Sonic LTZ 6spd turbo for the days I don't actually use the truck. Have hit 42mpg highway & 32 city tuned at 21psi. I wish gas was cheap enough to daily drive the truck but I can save $20+ dollars a week if I use the car.

Plus, that's a pretty cool car, being turbo and manual

 

[CarParts.com]

Wait yall keep up with mpgs and stuff like that? all I know is sometimes I fill up twice a week 🤷‍♂️

avg 13-15 depending on the speed. Honestly higher than I thought considering 4.56 gears and oversized E load tires on a crew cab. As long as we stay double digits in the ole girl she can stay.

Cam and headers though.... would be nice mmmmmm

Still in the double digits is a good thing

 

[58nate]

Plus, that's a pretty cool car, being turbo and manual

They are pretty cool for a OEM turbo car. The little iron 1.4l turbo gets badmouthed as a crappy engine but if they are maintained I think they are excellent motors. I'm pretty sure why most people blow them up is that they run 87oct and they show quite a bit of knock on low octane. After awhile the head gasket blows and most people overheat them at that point. Run 91 oct or add a E85 sensor and the problem is solved. I have over 180k miles on the stock engine and tranny. The E85 mileage is pretty bad but the fuel is cheap. Could run 30psi on E85 also. (on a bigger turbo of course)

 

[jake2250]

2500 6.0. My only saving grace is that its Flex Fuel! Filled up at the beginning of the month= $78. Hopefully I wont need to fill again until December!
Out here FF was $3.39 a gallon as apposed to $4.66 for regular!
Looks like it will be a winter of flex fuel for me!

 

[58nate]

2500 6.0. My only saving grace is that its Flex Fuel! Filled up at the beginning of the month= $78. Hopefully I wont need to fill again until December!
Out here FF was $3.39 a gallon as apposed to $4.66 for regular!
Looks like it will be a winter of flex fuel for me!

Do you have hard starts with E85 when it gets real cold? I haven't run a factory E85 car / truck in the winter yet. My modified E85 cars have to go to E40 in the winter because of hard starts.

 

[dgstarr]

2021 Silverado 4wd, 5.3 DFM, 8 speed. Highway mileage is as good or better than the GM rating. City mileage is much worse than the GM rating.

 

[CarParts.com]

They are pretty cool for a OEM turbo car. The little iron 1.4l turbo gets badmouthed as a crappy engine but if they are maintained I think they are excellent motors. I'm pretty sure why most people blow them up is that they run 87oct and they show quite a bit of knock on low octane. After awhile the head gasket blows and most people overheat them at that point. Run 91 oct or add a E85 sensor and the problem is solved. I have over 180k miles on the stock engine and tranny. The E85 mileage is pretty bad but the fuel is cheap. Could run 30psi on E85 also. (on a bigger turbo of course)

Yes, the 1.4L tends to have some quirks, such as PCV issues and leaky water pumps, but like any other engine, maintenance is key. It sounds like you take care of yours and it's doing just fine!