The Lexus IS500 oil temperature runs very high under track or aggressive canyon road conditions (same issue with IS-F). This is the first product of its kind for the IS500 that combines an improved transmission oil cooler and secondary added engine oil cooler. This product builds on similar successful and proven products we have been selling for the IS-F for years. Running these coolers at the track will improve the reliability, durability, and longevity of your engine by reducing oil temperatures, thus ensuring that your oil maintains an adequate viscosity to protect vital engine parts like bearings and piston rings.Engine Oil product specs: