Product Details: The Castrol GTX SAE 10W-30 Conventional Motor Oil is a premium motor oil designed to provide superior protection against viscosity and thermal breakdown. This keeps your engine running smoothly and efficiently. It is formulated with excellent base oils and anti-wear additives to help reduce engine sludge while extending the life of your engine. It is also designed to help reduce oil use, helping keep your engine running clean and efficient.<br/><br/>FleetPride is your First Click in Heavy Duty®.