Fuel mileage vs. inflation pressure?
Kevin crows about super high tire inflation pressures increasing fuel mileage. What are the numbers? I run 50% empty miles with spring ride trailers and I can immediately tell the ride is much harsher @105 psi instead of the 85 psi I have used for 25 years. I pull 2 or 3 different trailers every day and can't measure any differences in fuel economy with accuracy. It seems the fuel mileage difference is much smaller than the ride difference.
Is this a worthwhile discussion?