Brake Fade a risk for first time tracker?

brucelidat

so messed up and just bled and changed the brake fluid instead of a full flush, will this help at all or did i basically get no improvement from this?

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FL 4Motion

don't mix different types of fluid, ie dot 3 oem with dot 4 rbf 600. Do it again, it's a safety issue.

Island_370

There are no safety issues with mixing DOT3, DOT4, or DOT 5.1 fluids. It is like adding 5w-40 to a motor with 5w-30. They have different properties and will change from being blended, but it won't hurt anything.

DOT5 brake fluid should never be mixed with the others.

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Autobahn Country Club (North and South Tracks), Blackhawk Farms, Grattan, Gingerman, Mid-Ohio, Putnam Park, Road America, Sears Point, Thunderhill, VIR and "The Ring"

FL 4Motion

won't mixing dot 3 and dot 4 lower the boiling point for the fluid tho? He's going to be trakcing the car so with a lower boiling point, he will be more likely to cook the brake fluid thereby, on the track, increasing the risk of having a brake failure, ie, a safety issue on track, not on the street.

Island_370

Dry DOT 3 is better than wet (meaning old) DOT4. So if the fluid in the car is old DOT4, adding fresh DOT3 will actually help. Fresh fluid is always better than old fluid. Per the standards.....Wet DOT5.1 (the best glycol fluid) boils lower than new DOT3.

So leaving in old RBF600 may (and I emphasize MAY) be worse than new DOT3. But mixing DOT3, 4, and 5.1 is not like mixing those with DOT5. DOT5 can only be used with DOT5. The fluids cannot be mixed.

I agree with you....if going to the track, shortcuts are never good.

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Autobahn Country Club (North and South Tracks), Blackhawk Farms, Grattan, Gingerman, Mid-Ohio, Putnam Park, Road America, Sears Point, Thunderhill, VIR and "The Ring"