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.
RH665 has the highest guaranteed minimum Dry Boiling Point (ERBP) of any DOT 4 Brake Fluid, 325oC, to guard
against vapor lock and give a Rock Hard pedal even under extreme racing conditions. Many manufacturers quote
“Typical” boiling points – do not be deceived, this is not the minimum specification that you could receive, it can be
the result of a test on a single sample. “Typical” values for RH665 are invariably higher than 325oC. A similar situation
applies to “Wet” Boiling Point, RH665 is guaranteed to be above 195oC “typical” values are much higher and at
least the equal of other leading brands.
This product is not suitable for use in contact with magnesium components or in mineral based systems