When I put my new tractor (15 hours) "away" for the winter there was plenty of hydro oil on the dipstick. I used it a couple of times in January to remove snow. Today I decided to take it out and noticed the hydro dipstick was bone dry. Is it typical for hydro oil to need to be added especially so soon? Or is it possible that there is a leak? I did not see anything on the floor but it is dirt so it is difficult to tell. Should I just add some UDT2 fluid to the inlet the dipstick and keep checking the level with each use? I guess when I add the UDT2 I will see how much needs to be added. Hopefully it is just a small amount.