Quote:
Originally Posted by TriKKy
---------------
Regarding the high PSI numbers.....yes you get better mileage, less rolling resistance. You also get uneven wear on your tires (middles wear faster than edges). You also get longer stopping distances.
---------------
|
Maybe maybe not.
OVER-inflation will wear the centers unevenly, but with radial tires I doubt you will get into this situation.
Running high but not extreme (Between the door sticker and a few PSI under the sidewall rating) will usually give you better tire life overall.
EDIT: Found this
http://www.nhtsa.gov/cars/rules/ruli...ure/LTPW3.html
Seems stopping distance IMPROVES with higher pressure.
I am not sure where the stopping distance information comes from. A higher pressure tire will hydroplane less, but a too hard tire will loose traction on rough surfaces. There are lots of factors in both directions.
In general every aspect of a tire gets better with higher pressure except ride comfort. (as long as it is in the safe range; above the door sticker and below the sidewall rating)