Brake Fluids

Information and questions on GL1100 Goldwings (1980-1983)
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Motorcycle: 1981 GL1100 Goldwing

1963 Rokon Trailbreaker

Brake Fluids

Post by wheelhorse45 » Wed Sep 05, 2012 7:12 pm

What does it take to convert to Dot 5? The Dot 3 eats the paint off my faux tank.

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Re: Brake Fluids

Post by WingAdmin » Wed Sep 05, 2012 8:41 pm

DOT5 is completely incompatible with DOT3 or DOT4 fluids, and can NOT be mixed. So you would have to drain, flush, clean, flush, clean, flush again, clean, dry, and then refill with DOT5. And even then, there's nothing saying that the rubber seals in the master cylinder or calipers, or that the hoses themselves will be compatible, you could end up with leaking brakes.

Personally, I just cover up my paint with a couple towels when working with brake fluid. You can also take a plastic garbage bag, cut a hole for the reservoir, slip it over the reservoir and hold it in place with a rubber band. That will help guard against accidental spills.

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