Quote:
Originally Posted by MetroMPG
I meant: I thought your dyno news was to test tire pressure. Can't get much more controlled than that!
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It isn't obvious to me that that is a test of rolling resistance or fuel economy. The dyno rollers are only about a foot in diameter, so the tire contact patch is completely different than street conditions.
I'm just trying to get a comparrison between two cars, one rather old and the other fairly new
