Trying to figure out what brake fluid to go with, has anyone experienced any noticeable difference in the ABS behavior switching to a higher viscosity DOT4 fluid? I do some autox and have roads near me that put a hurtin' on the stock brakes so I want to do a pad/fluid upgrade, but I also drive the car throughout the winter in 15-30 degree F temps. Should I be going with a 5.1 fluid or am I worrying about nothing?
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