After only 24000 miles my Michelin MXV4 S8 front tires are almost to the wear bars. I last had them rotated at 14000. I have never had tires wear so fast. I asked the dealer about buying one tire from them and putting on my spare, so that I would have two new tires on the front. The service writer told me they would charge me about $70 extra to set the computer so that the car knew that I had a new tire from the trunk. I know they have monitoring systems, but this sounds like BS to me. I was going to buy one tire from them and use the new spare. Anyone else have this issue?