D25u off white oil

you can get condensation too. drain it and fill with the recommended oil. the one dip stick could be for the wet clutch. some machines had a wet clutch. heres a thought has the coolant level changed you might have a leak.
the trans has to be idling in neutral when you check the oil same with the main engine well i know the d4 u series is like that. its stamped on the dipstick.

Woo there train read your book again, and the dip stick. I only check transmission and wet clutches when the engine is off, before starting. The engine oil says check with engine running but not the others.

Condensation is rather hard to understand, as to how much water will accumulate. Inland central California is known for low humidity most of the year. I got a D6 from the Carrizo Plain area average rainfall is 7 inches and the tractor was in a old barn. But as rusty as any tractor I have dealt with.

a shed with a dirt floor will have more condensation and moisture than a concrete floor. its weird but having a roof draws the moisture. you park a vehicle on the lawn for a few days it will make that spot really green but them it kills it off.

you can get condensation too. drain it and fill with the recommended oil. the one dip stick could be for the wet clutch. some machines had a wet clutch. heres a thought has the coolant level changed you might have a leak.
the trans has to be idling in neutral when you check the oil same with the main engine well i know the d4 u series is like that. its stamped on the dipstick.

Thanks for the replies this machine is on the concrete floor in the non-heated garage 
I do remember now dad telling me to check oil levels while machine is running but the first dipstick that’s just a head of the hand clutch lever is that The wet clutch level and like I said right now it’s a milky white

Dipstick beside the shifter is the main transmission dipstick. For the oil clutch, you'll need to drain it, flush, and then inspect the cover and gasket for where the water got in. Also check that the oil clutch dipstick is not letting rainwater in too. Those are about the only two places I can think it would come from. I can't remember if there are any openings on the rear of the block that could leak into the clutch compartment

Thanks Neil if I’ve researched previous posts on this site there should be a drain plug at the bottom of the bell housing and can you advise on the same oil as transmission or not

And a filter down there too Steve I believe. I'm not familiar with the oil clutch as I don't have one so regarding the oil to use, I'll ask someone more knowledgeable to weigh in please.
I'll take a guess though that it's either engine oil or transmission oil. Cat kept the list pretty short back in those days