[ItBites]

I use ATE Super Blue. Reasonably priced and fairly high-temp. Good for sports cars.

Do not use silicone fluids. As stated above it does not absorb water, but water still collects and then pools and forms rust.

Do not think that disc brakes should use DOT5, just because the big three went to DOT5. They have many competing performance, financial, production, and liability needs that force compromise. DOT5 is not superior in performance, even though it is newer. DOT5 basically sucks for sporty driving.

Do flush your entire system if changing to DOT3 from DOT5. The ATE Super Blue is blue, so you know when it has displaced any residual old fluid. I also buy the ATE yellow and can therefore tell when I have completely flushed last years fluid out. Easy to alternate between blue and yellow and you know when your system is fully replaced with new fluid.