The oiling system addresses the need to properly lubricate an engine when it’s running. Properly lubricating an engine not only reduces friction between moving parts but is also the main method by which heat is removed from pistons, bearings, and shafts. Failing to properly lubricate an engine will result in engine failure. Avoid problems with a high-quality oil pump from Speedmaster™. Note: Hardened driveshaft recommended for high-volume oil pumps.