Castrol SRF eats brake seals ?

[ke6dcj]

Does anyone know if Castrol SRF brake fluid is compatible with the ABS/braking system of the W124 chassis, specifically a 500E, or does it still eat brake seals ?

I had considerable brake-fade after 3-laps (10 to go!) when I took the 500E to ButtonWillow raceway, and will be upgrading to race-pads and was wondering whether or not to upgrade the brake fluid as well.

FWIW, I was running ATE Typ 200 brake fluid, and Textar "yellow-box" pads. Below is table of boiling-points. Note that Castrol SRF's wet boiling point is SIGNIFICANTLY higher than some dry boiling points of other brands.

Rule of thumb for heavy brake users and those who don't flush at least every two years, is to have a brake fluid with a dry boiling point over 500-F, esp. if you vehicle is OVER 3,000-lbs.

:-) neil
1988 E36T AMG
1993 500E

Brake Fluid Comparison Chart

Brand Wet / Dry Boiling Point
Castrol SRF 518°F 590°F
Motul RBF600 420°F 593°F
AP-600 410°F 572°F
ATE-Super Blue 392°F 536°F
Valvoline 333°F 513°F
Castrol LMA 311°F 446°F
Ford HD 290°F 550°F
Wilwood 570 284°F 570°F
PFC-Z rated 284°F 550°F
AP-550 284°F 550°F