Quality-designed to warm engine block and fluids, speed up heating of cabin, and increase life of engine components during harsh weather conditions. Designed to allow a quick and easy start up for the vehicle in cold weather conditions. Extensively tested to OE specifications to ensure superior performance and long service life. All TechSmart(R) parts meet or exceed OE performance, providing today's technician with the quality parts needed to get the job done right, the first time.