Scott Posted May 20, 2008 Share Posted May 20, 2008 I'm going to be doing what i can with regards to a service pretty soon and i can't be sure what brake fluid the previous owner has put in. I've read that brake fluids should not be mixed so how do i make sure all the old stuff is out? Do i just get a few bottles of 5.1 and flush it out a couple of times to get rid of as much as i can? Don't want to break anything. I'm going to be taking the calipers off anyway to paint them at the same time as i am fitting my coilovers (oh joy) Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 20, 2008 Share Posted May 20, 2008 DOT 4 and 5.1 are mixable, but just pump each calliper through, whilst constantly keeping the reservoir toped up. Quote Link to comment Share on other sites More sharing options...
Scott Posted May 20, 2008 Author Share Posted May 20, 2008 Ahh cool, that gives me peace of mind. Thanks Quote Link to comment Share on other sites More sharing options...
bignum Posted May 20, 2008 Share Posted May 20, 2008 I put some red food colouring in mine so i could see when the new stuff was coming through, looks cool aswell, Quote Link to comment Share on other sites More sharing options...
TurboBrett Posted May 20, 2008 Share Posted May 20, 2008 I put some red food colouring in mine so i could see when the new stuff was coming through, looks cool aswell, can you do that? Quote Link to comment Share on other sites More sharing options...
Scott Posted May 20, 2008 Author Share Posted May 20, 2008 I would have thought that would mix into the new brake fluid just the same? Quote Link to comment Share on other sites More sharing options...
Mike M Posted May 20, 2008 Share Posted May 20, 2008 I'm gonna be doing this shortly as I need to overhaul the rear calipers. I'm planning on using a big syringe and remove as much as possible from the reservoir so I can fill it with fresh stuff before I start bleeding through. Should help anyway. Is there not something you have to be careful of with the master cylinder seals when bleeding or have I just made that up? something like flipping a seal, dunno really Quote Link to comment Share on other sites More sharing options...
Scott Posted May 20, 2008 Author Share Posted May 20, 2008 something like flipping a seal, dunno really I've seen sharks doing that on discovery Yeah big syringe sounds like the best idea. That way it will be a minimal amount left to get rid of. Quote Link to comment Share on other sites More sharing options...
Mike M Posted May 20, 2008 Share Posted May 20, 2008 I've seen sharks doing that on discovery Yeah big syringe sounds like the best idea. That way it will be a minimal amount left to get rid of. LOL, with big nasty teeth an all. Yeah gives you a head start on bleeding the new stuff though. Quote Link to comment Share on other sites More sharing options...
Ark Posted May 21, 2008 Share Posted May 21, 2008 Don't need to dye the new fluid, it'll be a different shade anyway because the old stuff breaks down and goes a darker shade. 1 litre of fluid should be enough to flush through the entire system. Quote Link to comment Share on other sites More sharing options...
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