LBZ tire size change

[SSonnentag]

I know my speedometer read about 68 mph when my GPS said 65 mph, so the factory numbers do indicate more miles traveled than actual, resulting in a better "perceived" fuel mileage.

[Cobra#3747]

I figured out on the Revs per mile that going from a 245 to a 285 was about -8%

So I just -8% the rev table. GPS put it pretty much right on