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      01-18-2010, 04:10 PM   #137
AP Racing - Chris_B
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Drives: E34 540i/6, others
Join Date: Jan 2009
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Quote:
Originally Posted by STALKER View Post
Motul RBF.
SRF would have run you over $100 alone no?
You might also consider AP Racing PRF if you are concerned about extreme temperature performance. This is a fluid used by many teams in NASCAR Sprint Cup, the highest sustained temperature application for iron rotors on the planet. No, they aren't M3's, but with 3500 lbs., 750+HP and only 15" wheels and skinny 9" tires, those hippos on roller skates can sure burn up brakes!

PRF is known to have a slightly lower boiling point than SRF, but the recovery is much better if it ever does boil (about 95% vs. about 70%). This means is doesn't completely go to crap in the unusual event it does boil. It lists for $29.99/500mL bottle, but you can probably find it for less from forum vendors.

Chris
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