Brake Fluid - What type to buy?
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Instructor
Joined: Jul 2010
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From: MI
Brake Fluid - What type to buy?
I am having my brake fluid flushed in a few weeks and the shop asked what kind of brake fluid I would like, regular or synthetic? I was going to buy OEM Toyota fluid but I am curious about synthetic and am open to suggestion. Also, how much do I need? Thanks.
CL Community Team
Joined: Dec 2005
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From: 565 St Peter NOLA
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Are all brake fluid synthetic?
Are all brake fluid synthetic?
All DOT3 & DOT4 fluid is synthetic...ie it is man made and does not have a petroleum base. DOT3 & 4 can safely be mixed. HOWEVER DOT5 (or 5.1) brake fluid is silicone based and must NEVER be mixed with DOT3 or 4.
Driver School Candidate
Joined: Apr 2017
Posts: 38
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From: Idaho
That's weird I thought all brake fluid was synthetic. I thought the only difference was they're all pretty much glycol based except I think DOT 5 which is silicone based. Totally could be wrong though I'm sure your mechanic knows more than I do!
If it was me I'd stick with the fluid that's already in the system because I don't like to mix fluids if I can avoid it but that's purely a personal preference.
edit: bradland beet me to the punch haha
If it was me I'd stick with the fluid that's already in the system because I don't like to mix fluids if I can avoid it but that's purely a personal preference.
edit: bradland beet me to the punch haha
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