New Holland tractor hydraulic fluid in the oil pan?

[crankyNH]

the oil pan on my tractor is totally overfilled, and it’s actually leaking out the front seal. it's got me wondering, is it even possible for hydraulic fluid to migrate into the engine oil somehow?
has anyone run into this before? how to fix this?

 

[Leakybutlucky]

Once had a similar issue with my TN75 where I overfilled it.
Thankfully the engine stayed clean hydraulic fluid usually doesn’t make its way into the oil pan.
The leak from the front seal was just due to the excess pressure from too much oil.
Once I drained it to the right level and swapped out the seal, everything was back to normal.

 

[Eastbound]

A while back, a friend of mine topped off his T4 and immediately noticed a front seal starting to weep. There was no hydraulic fluid in the engine, but the overpressure had to escape somehow. We drained the extra fluid, replaced the seal, and the tractor was running smoothly again. Now, I just make sure to measure carefully that’s my secret weapon.

 

[Ridgewolf]

One hot summer morning, I had oil spilling from the front of my NH after I got a bit too eager with the top-up.
Luckily the engine and hydraulics didn’t mix but the front seal definitely took a hit.
After correcting the oil level and putting in a new gasket, it was all good again.
Lesson learned: always check the dipstick before diving in