I am working on hydraulics these days and am looking to pick a brake fluid to go with. As my car is freshly painted, I am naturally not too thrilled about conventional DOT 3/4 brake fluids being near my car, if I can help it.

For now, my car will be a primarily street car, some spirited driving and the occasional autocross event. I do not have plans for heavy, high-speed/repeated , braking at this time [road course].

I would like to use DOT5 in my hydraulic clutch and brake system and am curious to hear your experiences.

Wilwoods DOT5 has a 500°F boiling point. Their best DOT4 is about 600°F.