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      10-24-2012, 09:33 PM   #18
That's what she said...

bigjae1976's Avatar
Drives: 11 E90 M3 Individual
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Why? Never heard that. I know DOT5 is incompatible. But you can mix DOT 3 and 4. I believe Castrol is DOT4. So how does it work when you initially bleed the SRF into the brake system that has non-SRF fluid? Some of the old fluid will mix.

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