Originally Posted by rebntx
I own a 2012 Blackwood 36' 5th wheel RV.
What kind of fluid do I put in the hydraulic jack reservoir? It seems to be leaking and jack dropping slightly. Just any hydraulic fluid?
In my experience with hydraulic systems each one is different in the fluid it requires. Some systems may use automatic transmission fluid while others may use light weight (10W) engine oil.
You need to obtain a copy of the owner's manual or look on the pump or reservoir to get the actual specs for the fluid required. Using the wrong fluid could result in a high repair bill.