so, maybe i'm just completely missing the boat but, let me explain...
if larger tires make my speedo a few miles an hour slower, then my odometer is a little slow as well right?
if this is so, this thing
tells me my Speedo Difference is 3.75%
i went from 265/75/16 to 285/75/16 - actual speed 60mph, speedo 57.8mph
then why would i not figure this into my mileage equation?
295.8 odometer miles on 20.5 gallons = 14.42mpg
(295.8 / 20.5) + (14.42 / 3.75) = 18.26mpg
of course we like the 18.39 better ....which one is reality?
just wondering if you all figure this way or not...
to a point, larger tires should give you more mileage (in general driving, not towing) as you're turning a taller gear....no? am i completely screwed up