The hydraulic fluid will be a reddish color (Dexron III transmission fluid). I am pretty sure that your front slide and leveling jacks use the same pump.
There will also be coolant hoses running above your propane tank. There will be one set of hoses running from your engine to the dash heater, and several more hoses for the Aqua-Hot system. The Aqua-Hot fluid is a light greenish color if you have not changed coolant types, and the engine is also greenish unless you have changed to Cat Extended Life coolant which is a light reddish color.
If it is a hydraulic line, you may be able to disconnect it at each end and "fish" a replacement line through the area above the propane tank without removing the tank.
Gerald
