RH665 is not the same as other Racing Brake Fluids, it has been specially formulated for racing applications, where braking systems operate at very high temperatures. It is a complex mixture of Glycol Ether Borate Esters and Polyalkylene Glycol Ethers together with advanced corrosion inhibitors, antioxidants and other modifiers. The result is an exceptional brake fluid with not only a very high boiling point but which also conforms to FMVSS 116 DOT 4 and maintains its class leading viscosity, lubricity and compressibility performance at extreme temperatures to ensure braking system reliability and performance and a Rock Hard pedal.
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