What brake fluid?
 

[Closed] What brake fluid?

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Need to top up/bleed my Formula brakes (Dot 4) so just wondering if there is any difference between the various options/any recommendations?


 
Posted : 23/05/2016 8:51 am
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When I had glycol fluid based brakes I used dot 5.1. You can mix it with dot 4 although I tended to flush the old stuff out, ie keep bleeding until the new fluid starts coming out so it is completely changed. Dot 5.1 has a higher boiling point. I'm sure 4 is fine but for the tiny extra cost it seemed worth it. Same argument for using branded stuff


 
Posted : 23/05/2016 9:01 am
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I use mogul rbf600. Seems to have the highest wet boiling point so I can leave it longer between flushes.


 
Posted : 23/05/2016 9:09 am