I like ATE Super Blue/Amber (same fluid, different color) for high performance street/track applications. Why not go with a better fluid is what I say.
If you're not tracking the car then stick with DOT3 fluid. DOT4 fluids, although they have higher wet and dry boiling points, and are therefore less prone to boiling, are more hygroscopic as well. This means they have a greater affinity for moisture. Brake fluid will absorb moisture from the atmosphere over time but the DOT4 fluids do so faster.
If you're not tracking the car then stick with DOT3 fluid. DOT4 fluids, although they have higher wet and dry boiling points, and are therefore less prone to boiling, are more hygroscopic as well. This means they have a greater affinity for moisture. Brake fluid will absorb moisture from the atmosphere over time but the DOT4 fluids do so faster.
The answer man strkes again! ANY DOT4 fluid? I thought that ATE was better in this regard?
Yes, any DOT4 fluid will be more hygroscopic than a DOT3 and is why OEMs use DOT3 fluids.
If you're using a DOT4 then you're most likely bleeding fairly often anyway (tracking/racing) and it isn't going to be an issue. Unless you have a reason for using a DOT4 then stick with DOT3.
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ANY DOT4 fluid? I thought that ATE was better in this regard?
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