Brake fluids interchangeable?
A friend of mine asked me if I could help her get rid of her "low-brake-fluid"-light in her Polo, after I said; Sure thing, it's easy as hell, I even have some fluid left over at home! But, as I got home and started reading on the flask I had I noticed that it was non-silicon based and that it could NOT be mixed with silicon based fluid..
How the heck am I supposed to figure out what kind she already has? And if I can't, are there any types of fluids that can be mixed with either silicon or non-silicon based ones?
::: Sven :::