Maximum protection against both viscosity and thermal breakdown. Superior sludge protection. American Petroleum Institute certified. For gasoline engines. Castrol GTX's superior sludge formula is so powerful, it passed one of the world's toughest sludge tests. It's more than just oil. It's liquid engineering. Stop-and-go traffic. Harsh weather conditions. Extending your drain. These severe driving conditions can all cause sludge to build up in your engine, leading to reduced gas mileage, decreased performance, and in some cases, engine seizure. Protect your care from harmful sludge formation with Castrol GTX. Unique dual-action dispersants provide superior protection against sludge build up to withstand the most damaging driving conditions. Castrol GTX SAE 10W-30 delivers: Ultra low friction to improve gas mileage. The highest North American standard of protection against viscosity breakdown. Unsurpassed protection against thermal breakdown. Exceeds API Service SM/SL/SJ/SH; ILSAC GF-4/GF-3/GF-2; API Certified Gasoline Engine Oils; GM6094M. Exceeds all passenger car and light truck manufacturer's warranty requirements for the protection of gasoline and turbo charged engines where API SM, SL, SJ or SH is recommended. A premium multi-grade oil, providing all-season protection with exceptional fuel economy. Made in the USA from domestic and imported components.
Don't pollute. Conserve resources. Return used oil to collection centers.
Sign up to receive exclusive email-only savings and information.