I just bought a ford 3400 with fel. Had a leak on a qd so I changed it with a different style. The loader seem slower now, but did lose a bit of fluid. So I want to first check fluid and want to know what type of fluid do I use. The fluid now is clear looking. There is a plug on the fel right upright. Do I just add fluid there until it runs out or what? I also have a leak around the pto lever. Does it have a seal in it? Where do I find one at a reasonable price and how hard will it be to change it? What fluid do I use there. I also think I read that some one said in an older ford fel you could use 10 w 30 oil in it. Is this possible? Thanks for any help I can get.