The mileage this car, with my driving style, delivers has been in the 17-19 mpg. range in normal mixed driving. All highway and the number is near 30. Which is okay. Initially the trip meter showed an increase in mpg. This seems to be about the same as the bridgestone turanza serenity tires which were exceptional in rain, very quiet and delivered impressive traction in snow and ice. These tires ride very harshly, impart a sense of limited grip when navigating wet ramps or expressways with expansion joints, otherwise acceptable rain traction, not great. Tonight in heavy rain with puddling in the lanes at 45 mph the car pulled into the deeper right side. Even when the turanzas were at 3/32's tread thru never pulled in rain. Snow and slush was poor traction at that depth and we had a long winter last year. If the mileage were substantially better, perhaps 3-4 additional mpg (which seemed achievable but has since been very like the turanza's delivered) the poor ride quality would be worth the decreased comfort and less surefooted comportment. I ytcan only hope these energy saver a/s michelins give acceptable winter service and last longer than the 24-25k miles the first two sets delivered.