4 years ago, I read all the reviews on this tire and found only 1 that mentioned a problem with fuel economy. I was stuck with a 10%+ drop in fuel economy from the day I put those tires on, until the day I took them off. All I can say is, every other reviewer has to be clueless or smoking something, not to have noticed the drain on their wallet each time they filled up.
Will never buy a Bridgestone tire again. (Over 35 years of driving, I have had previous poor experiences with Bridgestone.)
BTW, driving home from the installation of Michelins, I immediately noticed lower rolling resistance. My first few tankfuls confirm that I have regained (if not exceeded?) my original fuel economy.