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      12-24-2021, 11:33 AM   #2
DarkMastyr
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Drives: 2014 M6GC
Join Date: Oct 2016
Location: CA

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Should have no impact on the type of brakes. The fluid sits behind the pistons in the calipers and is just meant to provide hydraulic pressure.

Any DOT4 is probably fine for street use. Castrol SRF is top of the line, and folks who track their cars tend to like it as it holds up for a long time and they only need to swap once a season due to the high wet boiling point, but at $60-70/quart is 2-3x the cost of other fluids like ATE, Motul, etc. which are also fine.
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