Charlie D.,
Call Z-Tire in Grand Haven, MI 616-846-1600 and ask them (John, the owner or Alex) about how long Michelin tires last for mileage as they do all the city and many other business vehicles tire work in the area and have for nearly 30 years. Some city vehicles have gone over 150,000 miles on Michelins as we'd talked about in several times. They sell dozens of tire brands besided Michelins and are very honest people with a great well deserved reputation. I'm only a customer and also enjoy superb Michelin tire mileage and winter traction in snow. It's all I will have on our trucks etc!
NEVER use any tire shine etc or coatings on any tire as it dries out the rubber compound and promotes premature cracking. Even the stuff the car wash places uses for tire shine is bad stuff as it contains the same harmful chemicals.
