Quote:
Originally Posted by FL&WVMIKE
DOT 5 is a silicone based fluid, and is not compatible with DOT 3... so the system needs to be COMPLETELY flushed in order to make the switch.
DOT 4 is basically Synthetic DOT 3, and is compatible. That's what I would probably use if the system already had DOT 3 in it.
There is also DOT 5.1 which I don't know a lot about... so I'm not going to pretend and give you bad advice in regards to. lol
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I agree with everything said above. I would just add that DOT 5 can have a spongier pedal than DOT 3, 4 or 5.1.
Bruce