Smart Blend Synthetics One Formula Truck and SUV Transmission Treatment (PT#16000) by Life Automotive Products is specially engineered and formulated with advanced Synteum technology. Smart Blend Synthetics One Formula Truck and SUV Transmission Treatment is recommended for use as an ATF treatment when replacing or topping off fluid for all Trucks, SUV's, 4X2 ' 4X4 and racing applications with automatic transmissions.