Specialty silicone does not break down against gear oil friction modifiers. You should take these photos from several different angles, BEFORE you try to open it. (From the manufacturer). Double check it to be sure.
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.
