I have had these tires for 1.5 years (18,000 miles) and they have deep cracks around the lugs of the tread on the side wall. I will have to replace them within 6 months for safety reasons. Michelin wants me to pay 40% of these expensive tires when I have only driven for 20% of the rated 90,000 mile warrenty. I will not do this because I don't want to go through this again in another 1.5 years. Tires are very noisy at highway speed. Like other reviews I have read on here, sounds like you have mudders on the car. Don't waste your money, buy a tire that costs half as much and change them twice. I will not be buying another Michelin product.