Castrol GTX High Mileage 20W-50 Synthetic Blend Motor Oil, 5 Quarts

Helps Extend Engine Life in Cars with over 75,000 miles. Castrol GTX High Mileage is the premium part synthetic motor oil specifically formulated for vehicles with over 75,000 miles. As your engine ages, gaskets become brittle, seals deteriorate and oil consumption increases. Castrol GTX High Mileage is formulated with unique additive technology that combats this aging process and helps extend engine live by providing unsurpassed protection against sludge, wear and oil burn-off.* * vs leading conventional oils, 5W-30 tested