Actual mpg change: 37 bfg

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grantoser

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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.
 

ChevyChad

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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
 

cwylie

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

The Mav

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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.
 
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