Question for you all- One of my "plows under construction" is a mixed breed- A Meyer 7.5 plow and A-frame mounted to (another) Western Truck mount with the Western pump. I just got the thing mounted to the truck after having it modified to fit. It's even ready to plow, if I put a pin in to lock the angle. Anyway, the hydraulic hoses mount up with no modifications just fine, but I wonder about the fluid. The (Meyer) cylinders have a greenish colored fluid in them and the guy I got the plow from was careful to make sure the hoses didn't drag around or get dirty. The Western lift pump has a reddish colored fluid in it. I have always bought the recommended fluid for whatever plow setup I was working on, and I guess I never paid much attention to the colors of the fluid. Before I plug those hydraulic hoses in, is it OK that the greenish and reddish fluids mix? If not, how do I purge the fluid from the angle cylinders? I did not put the fluids in either of these, so who knows. Help please?!?