I Have heard that you HAVE to use dot 4 oil ..But aren't I allowed to use anything else at all like the Maggie's with water ? Also I need a few spares for it, but I don't know where to get them, I have looked on hopes official site, to me its pants and tarty bikes only have the spares I don't need! , Unless I spend £22 on a braided hose kit! What is the best solution for me ? ..Thanks for any replies