Actual mpg change: 37 bfg

[grantoser]

Anyone calculate actual mpg change moving up to 37 bfgs?

I know I know who cares right? It’s our road trip truck and daily driver so just curious if the 10 speed helps minimize some of the mpg loss.

 

[Gsteve]

i bet it drops 2 easy on the highway

 

[DEGBTI]

I dropped about two mpg, worth it for me

 

[ChevyChad]

I got 1-2mpg worse with 37's on my 2017. About the same as running regular vs premium fuel.

*This was also using heavy (50+ lb) 20" wheels

 

[Truckzor]

You guys had your speedos corrected, right?

 

[Jake17]

I know who cares right?

nailed it

 

[cwylie]

The weight should not effect the highway mileage. It will effect the in city mileage pretty significantly.

 

[ChevyChad]

You guys had your speedos corrected, right?

Nope

 

[The Mav]

A 2" larger tire isnt gonna do very much to highway mpg at all. Nothing noticaby. City is where you'll notice any difference.

---------- Post added at 12:04 PM ---------- Previous post was at 12:03 PM ----------

You guys had your speedos corrected, right?

No one ever does this, or compensates for it when calculating mpg lol.

 

[roostinyfz]

My change from the stock to 37" BFG on a method wheel was very little. Just under 1 MPG.