When I REPLACED the Re92s on my Insight, my mileage did not change at all. When I replaced the ORIGINAL Bridgestone tires on my VX, which were 15 years old, with Michelin Xs that I paid $220 for installed and warrantied, the mileage dropped by 7 mpg. I think they (the originals) were B382s or something like that.
regards
mech
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