If the OP is worried about different makes of DOT 4 being able to be mixed, the answer is supposedly 'Yes'..... ....but whether that is true or not, the OP should/would probably have flushed out any previous brand in the course of bleeding. Therefore mixing shouldn't be an issue. So, with any good brand name DOT4 fluid like Agip, Rock Oil etc, he shouldn't have any problems.
It was more intended as "are they all much of a muchness or should I buy RockOil"(other brands are available).
They are supposed to be "all much of a muchness" but I doubt if they are....... Although I have used some Comma Dot 4 as a temporary measure for flushing out etc.......Seemed to be OK, but I then switched to Agip.
