I have read in a couple of places that low rolling resistance (LRR) tires contribute approximately 3% to the fuel economy of a vehicle. For a car such as a hybrid that gets 50mpg, this would translate to a difference of about 1.5mpg.

I was wondering if this was the consensus -- or the experience -- of the folks on this forum. Or, if the feeling was that the difference would be more (or less).

[Note: I have seen the thread regarding the mpg drop due to a change to the michelin tires, but it seemed like that drop might be in part due to the weather change (entering winter).]

Anyway, I was just curious what the possible effects would be to my HCH mileage (which is about 45mpg after 2500 miles of mostly city driving).

Thanks for the info...