Vetus M4.56 

I had a Vetus engine in a new barge I bought the engine was fine but changing the TMC gearbox with the ATF oil was a pain,I have a Yanmar with a PRM which uses engine oil so only need one type of oil on the boat.Also the PRM is so smooth going into gear and using the boat on rivers and canals you use the gearbox a lot,after 4350 hrs and 16 years the PRM still works flawlessly so does the Yanmar.

What kind of experiences you have had with the engine and tmc60 gearbox? How many hours have you used the engine? Has it worked flawlesly?