Quote:
Originally Posted by kaisen
The actual tires make a big difference too. Not just the PSI they run.
I bought low rolling resistance Kumho 'Eco Solus' KR22 tires for my wife's Camry and picked up 2-3 mpg over the Michelins that were on there, running at the same PSI. And the KR22s have a 100,000 mile warranty. And they're half the price of the Michelins.
Some tires take more energy to push along.
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This is interesting. Is there an accepted measuring standard for rolling resistance of tires? I think that most people, (including me), would consider it a strong factor in comparing tires, just like traction/speed/tread wear ratings. On a DD or commuter vehicle, it might be my first consideration, especially since it would seem to correspond pretty directly to long tread wear life.
