Quote:
Originally Posted by MacklinUSOB
I don't see anything wrong with running 5.1 (Motul RBF660), but only you can know if you're going to be pushing hard enough where the 4 (RBF600) isn't enough for you. I run the same fluid year round and our temps range from 0-100F.
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I was referring to Motul DOT 5.1 (
link) not RBF660 (
link).
DOT 5.1 is low-viscosity like OEM BMW brake fluid, i.e. "designed for ABS". I was wondering if that would be enough of an upgrade to be worthwhile. I would certainly feel more at ease running it year-round over dedicated racing fluild like RBF600. Again, I would only be doing 1 or 2 HDPE events a year, and some occasional autocross. Motul DOT 5.1 seems to have a bit higher DBP (522F vs 446F) and WBP (356F vs 311F) over OEM.