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+--- Forum: Suspension, Transmission, Handling & Braking (https://www.306oc.co.uk/forum/forumdisplay.php?fid=19)
+--- Thread: 5.1 and 4 brake fluid (/showthread.php?tid=1038)
5.1 and 4 brake fluid - Daniel306 - 22-01-2012
Is it ok to use 5.1 brake fluid? the cap dose say dot 4 only tho
Re: 5.1 and 4 brake fluid - Dum-Dum - 22-01-2012
IIRC only if you have the whole system bled through with 5.1, you cant use a mixture of them.
I usually use 5.1 when i bleed brakes on a 306.
Re: 5.1 and 4 brake fluid - Connor - 22-01-2012
You can use what you like, but just don't mix different dots together, 3 and 4 can mix, but anything else is a big no no
Re: 5.1 and 4 brake fluid - Toms306 - 22-01-2012
Why can't you mix them?
I was told that if it needs DOT 4, then anything DOT 4 and above would be fine....as it'll just have a higher boiling point.
Re: 5.1 and 4 brake fluid - Connor - 22-01-2012
Because they can react to each other... Should have been thought that at college
Re: 5.1 and 4 brake fluid - Toms306 - 22-01-2012
Connor Wrote:Because they can react to each other... Should have been thought that at college
Ah didn't know that, cheers.
What happens if they do react? Air bubbles I guess?BTW, you'd be surprised what we aren't taught in college!
hock:
Re: 5.1 and 4 brake fluid - Connor - 22-01-2012
Well its like water and oil, they don't mix... same thing for brake fluid, dot4 is a different liquid to dot5.1
Re: 5.1 and 4 brake fluid - Toms306 - 22-01-2012
Oh, fair enough.
Re: 5.1 and 4 brake fluid - Connor - 22-01-2012
And I wouldn't be surprised at what they don't teach you, any time we had to go into the workshop at college, we always had to fix all the full time students f*ck ups...
Re: 5.1 and 4 brake fluid - Dum-Dum - 22-01-2012
Isnt it something to do with semi synthetic and fully synthetic or am i going nuts again?
Re: 5.1 and 4 brake fluid - Toms306 - 22-01-2012
Connor Wrote:And I wouldn't be surprised at what they don't teach you, any time we had to go into the workshop at college, we always had to fix all the full time students f*ck ups...
Lol, we spend a lot of the time fixing the school kids/level 1's muck ups (whats up with the swear filter!?).......they treat the cars there like shit tbh, wouldn't wanna let them loose near my car!!