I'm doing research on replacing my 2008 HCH II tires. I have 43,000 on the OEM Dunlops. I'm looking at the club tires (Costco / Sams). I want to get the free tire rotations usually included with the Club purchase. I've contacted Michelin but they do not want to commit to any LRR attributes, any good luck stories in replacing tires without losing MPG's.