I would definitely not use silicon based DOT 5 brake fluid for reasons given by mechtech2 and jtaylor.
There is also DOT 5.1 which is polyethylene glycol based just like DOT 3 & 4 so they are all compatible. The DOT 5.1 spec fluid has the highest wet and dry boiling points, and is harder to find.
There is also DOT 5.1 which is polyethylene glycol based just like DOT 3 & 4 so they are all compatible. The DOT 5.1 spec fluid has the highest wet and dry boiling points, and is harder to find.
