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.
Outstanding oxidation stability, and outstanding TBN retention. Premium Synthetic Blend Diesel Engine Oil. gasoline service category One engine oil for mixed fleet operations. Component compatibility Long gasket and seal life.
