I took my 2010 CRV in to Honda to get the tires rotated at 11,000 miles, front to back for the first time. The service manager came out to the waiting room and told me that the mechanic didn't recommend that I rotate the tires because there was cupping on the rear tires. He said if he rotated the tires, I would probably have a noisy ride when I got up to 50 mph's. The service manager said that although this was a probability, if I didn't rotate the tires they wouldn't last as long, but it was up to me. I looked at one of the rear tires and saw what looked like less than a sixteenth of an inch of flat areas in layers along the bottom of the tire. I didn't think it was enough to make noise if moved to the front so I told him to go ahead and rotate the tires. Afterwards I didn't have any noisy ride. They also remarked that I should rotate the tires every 7,500 miles, or when I get an oil change.
I keep the tires at 32 pounds pressure and don't do any hard stops or take off fast, so I can't figure why the rear tires had any abnormal wear, although minor. Does anyone have any ideas? How many miles do you think I should go between rotation? The car came with Continentals.