Number one in the heavy duty and high-performance industries. Heavy Duty Oil Stabilizer eliminates dry starts and minimizes friction, heat and wear in any engine. The world's #1 oil additive. Multi-use versatility.
Why Choose Our Onan SAE 15W-40 Engine Oil?. Our specially formulated Onan SAE 15W-40 Engine Oil assures you that every drop is engineered to provide the utmost in protection and performance for your vehicle.
It’s fortified to help prevent dirt, sludge, and contaminants from turning into performance-robbing deposits. Suitable for all car, SUV, and light van and truck gasoline engines, it's compatible with engine seals and all conventional oils.
Available in 1 quart and 1 gallon bottle sizes. World’s #1 synthetic oil additive. Light enough for an import - Tough enough for a semi. It can also be used to protect new and used Heavy Duty and High Performance transmissions, gear boxes and engines.
