Very disappointed with these tires. In cold weather or if I do not drive my car at least 25 miles per day these tires loose psi. During this past winter I had to check my tires 2 or 3 times each day to make sure the psi was where it should be. I have had my psi to drop to 14psi on a weekend when I did not drive my car at all. Very disappointed in these tires and the mileage on my tires is 45000 and they is a 90000 warranty on them. These tires cost me almost $900.00 and I cannot afford these tires on a yearly basis. I bought them in good faith that they would be usable for at least 3+ years. Yes they are noisy, but since I am alone most of the time in my car I became use to the noise. Very disappointed in these tires and Michelin.