D Farms
New member
I get what you're saying, but, my fuel economy was the same even with my 245/75R16
I'm getting 225ish on both my current 4runners and all my 3rd gens from the past.
I wonder how much altitude comes into play...
so are you accounting for the tire size difference or not, it would mean 250 miles instead of 225 per tank. also how much do you put in to fill up?