Castrol GTX High Mileage 10W30 Motor Oil is formulated with unique additives to protect engines with more than 75,000 miles from wear and harmful deposits.Product Features:Designed to help extend engine life for vehicles with more than 75,000 milesSeal conditioners help reduce leakageProprietary additives work to minimize compression loss and maximize engine protection.Exceeds API Service SN, SM, SL and SJMade in the USA.