Retro Grouch
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Depends on the brake. Some use DOT fluid, some use mineral oil.Originally Posted by mtnbk3000
Can i go to an automotive store to buy dot fluid? and use it in hydraulic disc brakes for bikes
Shimano uses mineral oil. Most of the rest use DOT 3 or 4, which can be purchased at any auto parts store.
Stay away from DOT 5 unless the manufacturer specifically says to use it. DOT 5 is silicone based and isn't compatible with DOT 3/4 systems.
Bill Kapaun
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And be careful. Brake fluid eats paint!
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Just for completeness: DOT 5.1 is compatible with DOT 3/4. Originally Posted by Stacey
Stay away from DOT 5 unless the manufacturer specifically says to use it. DOT 5 is silicone based and isn't compatible with DOT 3/4 systems.

MudPie
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Also, any brand DOT 3 or 4 brake fluid would work. No need to buy "name brand" when "house brand" will do.
Quote:
O Rly? Originally Posted by shider
Just for completeness: DOT 5.1 is compatible with DOT 3/4.
I learned something today. Thank you!

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I learned something today. Thank you!
Lol, that's the problem with dudes who pretend to be knowledgeable.Originally Posted by Stacey
O Rly? I learned something today. Thank you!




