My fault, i was not clear on what i said.

It depends on what you are getting done to you car. Now in your case, no the dealer will not care, because if what you say is true, you are going out your war alot faster, so no they will not care. The service and the tech's on parts and labr. Factory war time is less than actual book time. So a simple service which is not coverd under any war , no dealer will care about. But if you had a trans problem , intake manifold , exhaust , or any big repair to your car, and our odometer still shows that you are under factory war milage, TRUST ME , THOSE 18'S WILL VOID YOUR WAR.