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Track Day Fluid? Usual choices are high viscosity.
I did a car control clinic last year, and the brakes were fading badly at the end of the day. This year I want to do some more ambitious HPDE and AutoX runs, and all the forum posts say to upgrade to a track oriented fluid.
Motul RBF 600 is a popular choice (but pricey), or maybe ATE 200.
But after reading this thread, I'm concerned about the viscosity of these fluids. the -40F rating for the Motul is 1750, and 1400 for the ATE 200. That's way over the ~700 of low viscosity fluids.
So, are there any high boiling point DOT4 fluids that are low viscosity? Looks like ATE SL.6 is a LV fluid, with better than OEM boiling temps. But it's a long way from the track oriented fluids. Anything better out there?
Or, does everyone just switch back to low viscosity fluids in the fall? (I live in Minnesota, so a -20F day is fairly normal. I'd like my ABS to work well in the snow/ice/cold.)
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