strat Posted March 12, 2007 Share Posted March 12, 2007 is all dot 4 synth? synth is all I could find in dot 4. Thanks strat Link to comment
GordonB Posted March 12, 2007 Share Posted March 12, 2007 No, but it seems that's what most auto parts stores stock. Try a cycle shop. I do believe that synthetic is a big no no in the BMW bikes....Someone correct me if I'm wrong. Link to comment
smiller Posted March 12, 2007 Share Posted March 12, 2007 Someone correct me if I'm wrong. You're wrong. Any DOT4 fluid is fine. Silicone (DOT5) fluid is not, perhaps you confused silicone with synthetic. Link to comment
Paul Mihalka Posted March 12, 2007 Share Posted March 12, 2007 DOT4 synthetic is OK. DOT5 is not. Link to comment
philbytx Posted March 12, 2007 Share Posted March 12, 2007 And be careful.. There is DOT5 silicone fluid which DOES NOT mix with DOT3 and 4 BUT there is a DOT5.1 that DOES! The DOT5.1 fluid is synthetic and has higher wet boiling point numbers and a lower viscosity index number. They say that this makes it better in cold weather for ABS systems with microvalves etc..... I use Ate Brake fluid (a combo of Ate Gold and Typ200 which is Blue) in both my car and cage brake systems so that when I do a brake flush I can see the colour change after all the old stuff is pumped out. Link to comment
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