Quote:
Originally Posted by aktacoma
so relatively soon my truck will need new tires and Im wondering if I should go up a size to help economy or will that just lead to more aerodynamic drag?
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I would think it would depend on your gearing, thus engine load you have currently.
My truck has 31/10.5/15 on it now, stock 235/75/15{28") will post in my thread what mpg's it gets without mods.