What hydraulic fluid for clutch reservoir?
DOT 4 brake fluid. If you've never changed your fluid, I'm sure it's going to be nasty. Be prepared to clean out your reservoirs.
I like the Valvoline Syn Dot 4 fluid. .. And the point on cleaning the reservoirs. I have a dedicated turkey baster to suck out all the fluid in the brake and clutch reservoirs. After that, take a paper towel and wipe the interior good. Then next, Qtip the corners as there still will be gunk stuck there. Refill with clean and bleed from there. -- Its easier this way as opposed to flush bad fluid thru the system.