Because hydro-Gear decided to save a buck they made the units in my Big Dog C142 mower "sealed for life" with no drain plugs. Mower has about 400 hours on it. Today I removed the units and drained them thru the fill port and refilled them and reinstalled. Drain plugs would have made the job so much easier but I probably would not have been able to break the fill plugs loose with the units installed and they would have to be removed anyway. Manual specs 20W-50 motor oil for lube. I installed Castrol GTX 20w-50. After refilling and installing the mower wanted to creep and I had to adjust the linkage on both units. That was a troublesome operation.
I hate "sealed for life" devices.
I hate "sealed for life" devices.