Synthetic Heavy Duty Oil Stabilizer Lucas Pure Synthetic Oil Stabilizer is perfect for use in new equipment that requires synthetic oil or any equipment that needs enhanced performance. It can be used to protect new and used heavy duty and high performance transmissions, gear boxes and engines. This product controls heat and wear in motorcycles, air-cooled engines and all drive-train components. Lucas Pure Synthetic Oil Stabilizer reduces friction for more power and more MPG. It eliminates dry starts in new engines and provides the extra protection needed for import and domestic engines requiring newer, lighter engine oils. Lucas Pure Synthetic Oil Stabilizer was originally designed for the racing industry.