i just got a komatsu wb93r backhoe loader and not sure what fluid to use in the brake master cylinder? right now its got a thick dark coloured oil in it!
brake fluid?
Sorry, not a lot of Komatsu backhoes around here. If you can't find it online, you need an owners manual. The wrong fluid could cost you a lot more than the wait and price of the manual. Probably a hydraulic oil, but that's just a guess.
Yep. Follow Delmer's advice. My Terex takes mineral oil.
mineral oil makes sense! but will drop by the local dealer on monday as everyone resumes