Larger gas tank

[swathdiver]

We have towed with our Denali for some time and have to stop frequently to fill the gas tank. Does anyone know of a way or company that can install a larger tank?

Thanks!

Since the feds consider the gas tank part of the emissions on a vehicle, nobody touches them anymore. There is a company in Idaho that makes larger tanks for diesel trucks, if the openings are the same...

Stopping every couple hours while towing is good practice to make sure everything is aok on the trailer.

I considered this too. Now, Wavian Jerry Cans are my friends.

 

[ycats]

I love the 3.0 diesel. My mileage without towing is amazing. Filling it up puts the computed range over 600 miles. Around town I avg 24. I've towed a bit with it and the highway avg drops down to about 17, but when I towed with my 6.2 prior, that same trip would be around 12 mpg. I do wish GM had a 35 gal tank option.

 

[DontTaseMeBro]

Back when I had my '22 Silverado with the LM2, I was getting 12-13mpg whilst towing my 6500lb camper. That dropped to about 9mpg with the 6.2 in our Yukon. Kind of an apples to oranges comparison since they're not the same vehicle, but ya, that little diesel kicked ass. And yes, it ABSOLUTELY loved to drink the DEF. 500 miles to empty at it's worst when towing up and down grades.

 

[Polo08816]

I love the 3.0 diesel. My mileage without towing is amazing. Filling it up puts the computed range over 600 miles. Around town I avg 24. I've towed a bit with it and the highway avg drops down to about 17, but when I towed with my 6.2 prior, that same trip would be around 12 mpg. I do wish GM had a 35 gal tank option.
View attachment 438920 View attachment 438921

This is why I will never consider the GM 1500 in the 1/2 ton category. This seems like it would be such a simple fix.

 

[Stbentoak]

Back when I had my '22 Silverado with the LM2, I was getting 12-13mpg whilst towing my 6500lb camper. That dropped to about 9mpg with the 6.2 in our Yukon. Kind of an apples to oranges comparison since they're not the same vehicle, but ya, that little diesel kicked ass. And yes, it ABSOLUTELY loved to drink the DEF. 500 miles to empty at it's worst when towing up and down grades.

Are you saying that it emptied a full tank of DEF in 500 miles of towing? I'm certainly not disputing you, but I find that very hard to believe....

 

[DontTaseMeBro]

Are you saying that it emptied a full tank of DEF in 500 miles of towing? I'm certainly not disputing you, but I find that very hard to believe....

It wasn't a full tank, but it was empty in short order after the fact. I believe it drops to about 1000 miles on a full tank if you tow a lot.

 

[Big Bad Allis]

This is why I wanted the Duramax. On the freeway I can get 700+ miles on a full tank. All in town back and forth to work 625+ on a tank. I haven't pulled a trailer yet though.

 

[ProfeZZor X]

You guys will appreciate frequent stops to pee and stretch once you get a bit older...

And it's reasons like this why I carry a medical urinal in my side door pocket. I've had it there since I bought the vehicle back in 21 (2022YM), and used it several times when I'm nowhere near a public restroom. It definitely comes in handy.

 

[tabraha]

And it's reasons like this why I carry a medical urinal in my side door pocket. I've had it there since I bought the vehicle back in 21 (2022YM), and used it several times when I'm nowhere near a public restroom. It definitely comes in handy.

So how many miles do you have on that 2022 to need to carry around a pee-jar?

 

[ProfeZZor X]

So how many miles do you have on that 2022 to need to carry around a pee-jar?

The most miles I've gotten with my current wheel and tire setup, and a full tank of gas was a range of up to 386 miles. As it stands, I have about 57k miles on my AT4.