Onan SAE 15W-40 Oil - Quart (Set of 3). Why Choose Onan SAE 15W-40 Oil?. Manufacturer Part Number: SAE 15W-40 Oil Unit Quantity: 3 Type: Conventional Oil Viscosity: 15W - 40. Viscosity: SAE 15W-40, providing excellent protection and performance in various temperatures and conditions.
