I have a set of Michelin Hydroedge tires with about 30,000 miles on them. Three have half the tread depth remaining and one that is approaching replacement due to wear. These tires have a 90,000 mile tread wear warranty. Correct pressure has been monitored and kept at recommended psi. They have been rotated at 6K and the wear is even across the tires with no indication of alignment issues. They are on a 2008 Mercury Sable. I'm really disappointed in their wear performance.
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