I never hand calculated my mpg before/ after. I went from the factory 33” whatever tires to 35x12.5r20 Toyo MT.
I couldn’t tell you my difference in mpg. All I can say is, my truck went from thirsty to straight toilet bowl flushing thirsty.
There has gotta be a swirl of gas in my gas tank like a toilet bowl draining lol (hypothetical off course).
It doesn’t help that Toyo MT’s are one of the, if not the, heaviest tire one can buy. Keep that in mind. It’s mostly all about tire weight. To give an example, the BFG KO2 in the exact size as above are about 13 lbs per tire lighter.
So, if you want a more aggressive look, factor in tire weight and choose a lighter tire if you are concerned with mpg loss.
I got 3.92 in case you are curious. Still thirsty.
Sent from my iPhone using Tapatalk