AP Radi-Cal™ R4 Brake Fluid
  • AP Radi-Cal™ R4 Brake Fluid

AP Radi-Cal™ R4 Brake Fluid

$39.25
Quantity

‘Typical’ New Dry Boiling Point: 320°C (644°F)
‘Wet’ E.R. (Equilibrium Reflux) Boiling Point: 204°C (399°F)

R4 has been explicitly designed to perform better than any other product at the extremes of heavy duty braking performance, and is currently the fluid of choice at the elite level of motorsport. R4 has the highest dry boiling point of any racing brake fluid currently available at 644°F.

15 601644

R4 R3 R2 R1 Factory R DOT 5.1
Dry Boiling Point (°F) 644°F 608°F 594°F 516°F 516°F
Wet Boiling Point (°F) 399°F 399°F 399°F 304°F 369°F
Intended Application Endurance Racing Sprint Racing Racing / Track Day Auto-X / Road Road / Auto-X / Track day
Retail Price per 500ml $39.25 $29.95 $19.95 $17.95 $12.95