i have a 1995 l35 with 1500 ish hours the clutch slips very bad any small incline it stops dead in its tracks. i am trying to find out if there is anything that could be causing this other than the dry clutch slipping gst? hydraulic pressure? low oil? and how can i tell if its the dry clutch or gst? also i saw what looks to be a oil fill hole in the forward area of the engine right by the alternator on the opposite side of the oil filter and dipstick i dont think its engine oil what could it be and could it be causing this 1500 hours isnt that many. thanks for all the help.