DOT 4 has a significantly higher cold viscosity than DOT 3 and is not as compatible with ABS in cold climates. If you are going to be in an area where temps get low, I'd go with Motul DOT 5.1 as it has a thinner viscosity for keeping the ABS happy and has very good boiling point stats. It also wont need to be changed as often as racing brake fluid.
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2013 Ford Mustang GT
374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
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