Premium Blend Diesel Engine Oil - 15W-40

Sierra offers a full line of direct replacement weight oils that are specifically blended to protect your engine in the harsh marine environment and the extreme load conditions that your engine is subjected to every time you push down on the throttle.

Unlike automotive engine oils, Sierra oils are specifically designed to prevent moisture and corrosion from harming your engines internal components.
Best of all when you choose Sierra engine oil, you can feel confident that their marine specific oils are backed by the Sierra’s industry leading warranty.

This high performance Diesel Engine Oil has been manufactured and designed to meet the following manufacturers specifications: Volvo VDS-2; Cummins CES20078, CES20077, CES20076; Detroit Diesel DDC93D214; Cat ECF-2; Global DHD-1.