Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Tire pressure set lower, MPGs went up? (Winter thread)

bestclimb · 11-26-2013, 09:53 PM

When I was running winter tires on my civic years ago I would get some wicked wheel hop while spinning due to ice and snow at 55psi, dropped it down to 45ish and the wheel hop went away. Traction during a slide may have gone up (butt-o-meter not any skid testing) but I did not note any significant difference in traction while not skidding (which matches the science I have seen regarding tire pressure and traction). Nor did I note any mileage change as during the winter road conditions and driver technique totally wipe tire pressure rolling resistance changes away.

11-26-2013, 09:53 PM	#9 (permalink)
bestclimb Smeghead Join Date: Oct 2009 Location: South Central AK Posts: 933 escort - '99 ford escort sport 90 day: 42.38 mpg (US) scoobaru - '02 Subaru Forester s 90 day: 28.65 mpg (US) Thanks: 32 Thanked 146 Times in 97 Posts	When I was running winter tires on my civic years ago I would get some wicked wheel hop while spinning due to ice and snow at 55psi, dropped it down to 45ish and the wheel hop went away. Traction during a slide may have gone up (butt-o-meter not any skid testing) but I did not note any significant difference in traction while not skidding (which matches the science I have seen regarding tire pressure and traction). Nor did I note any mileage change as during the winter road conditions and driver technique totally wipe tire pressure rolling resistance changes away. __________________ Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways. One mile of road will take you one mile, one mile of runway can take you around the world.