High performance brake fluid.
Boiling point 340ºc.
Radi-CAL R4 Racing Brake Fluid
Radi-CAL R4 fluid has been engineered to perform better than any other product at the extremes of heavy-duty braking performance at the highest levels of racing.
With the highest dry boiling point of any racing brake fluid currently available, at 340ºC (644ºF), R4 stands alone.
With excellent resistance to vapour lock/pedal fade in the most demanding conditions.
A higher vapour lock point means a firmer brake pedal at extremes of brake temperature.
Improved lubricity means this fluid is an even better lubricant than the market leading PRF660 itself. This helps to extend the life of the moving metal parts of the brake system and increases system efficiency.
Note: R4 can be mixed with DOT3 and DOT4 racing brake fluids, but for maximum product performance, the brake system must be completely flushed with R4 fluid.
Designation: Radi-CAL R4 "Typical" boiling points.
- New Dry 340ºC.
- E.R. wet' 195 º C
