Hello , I have been lurking for some time here , and I think i need to have a question answered but i have been on other sights and they don't really seem friendly enough to answer a question so i thought maybe i would try here you all seem as if you know about rv's but here is my question I was told by my tire shop that Michelin tires have a 10 year spread before you have to replace them is this true my tires are 8 years old no cracking or anything but i don't feel that i am getting the true answers i would like a second opinion as it would be said I hope that i am not asking a dumb question or maybe i am not looking in the right place but i hope i can come here with any problems i might have i will wait for any response i may get