My Father-in-law has been generous enough to let me use his model 1925 New Holland compact tractor. I went to borrow it a few weeks ago and was checking all the fluids and i saw that the radiator appeared to be empty. We filled it back up and i have used it quite a bit here recently but it doesn't leak antifreeze anywhere. I have it stored under my carport, 1 to keep the old battery charged and 2 to check for leaks but so far nothing. It has something like 2300 hours on it now. Is there a reason we lost so much antifreeze when it sat? It runs flawlessly, I just wanna catch any potential problems soon. Also when operating the hydrostatic drive it hangs in reverse and won't return to neutral. It's aggravating when your trying to load something with the FEL and in order to go from reverse to neutral you have to tap the pedal forward causing the tractor to jerk. I don't have a manual, and I'm not sure what year but the headlight's are separate in the front unlike the newer ones that are one piece lens. I will post some pics tomorrow.