The great oil debate got me interested so I decided to get to the bottom of it.
I called Yanmar. Spoke to a service engineer in the industrial engine dept.
Question : In your engines that are shipped to John Deere for installation in their compact
tractors, what oil are they shipped with?
Answer : None, they are shipped dry. Deere takes it from there and I would guess that
they are then equipped with break-in oil.
Question : What would you recommend using?
Answer : If it's for a Deere tractor, whatever Deere says.
Question : If it's not in a Deere tractor what would you recommend using?
Answer : Break in oil for the first 100 hours.
So, there you have it. Straight from the horses mouth.
Yanmar Engines : 770 877-9894