glennster
Well-known Member
doing maintenance on my new-to-me 1983 prime mover skid steer. previous owner did not have any manuals for the machine. i finally located an owner manual. the hydraulic system per the manual says to run se/sf 10w40 motor oil. prev owner has been running hy-tran. the drive motors are trw torqmotor mab/mae series, and the pump is a sunstrand sauer 18 series. from a previous post on the chaincase, the se/sf is an old rating. sooo.... is there any problem running hy-tran, or, should i be running the newer version of se/sf motor oil, or.... maybe rotella 15w40?? thx