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I had the energy savers stock with my Ioniq. They worked great. Eventually drove a lot of miles and wore out tread and needed to replace them. Switched to ecopias from Bridgestone. Don’t notice much of a diff in mpg between them. In the winter I use the super high rolling resistance Bridgestone blizzak snow tires. So the biggest jump is switching back and forth between ecopias and blizzaks. City driving is like a 6 mpg bump between those too. Handling and coasting is so much different. I’ve barely noticed a difference at highway speeds because aero drag kills mpg more than tires. I’d say it’s the same, but it’s hard to tell.
I’m actually changing my tires out in a week or two. Figured I’d be the first person on here ti actually do highway AB testing. Was going to do a high speed highway stretch mpg test with the winter tires. Go to Costco and switch tires out, then an hour later, go do the exact same stretch and record that mpg and see. City and country road driving is night and day between lrr tires and other tires. But I’m going to actually test steady state faster highway speeds because I want some solid numbers.
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