Michelin Primacy MXM4 Run Flat is a grand touring all-season tire for passenger cars and minivans. With Sunflower oil Helio Compounding, Primacy MXM4 increases traction at low temperatures, improves braking and handling in the wet. It features Michelin Comfort Control Technology which uses computer-optimized design and precision manufacturing methods that reduce vibration and road noise. Primacy MXM4’s twin steel belts reinforcing with Michelin FAZ Technology enhance treadwear, handling, and high-speed capability.