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how many quarts does the transmission take on the m37,cant seem to find it .I am thinking of going with lucus 75=90 I live in sunny calif so I don't need the 50 weight unless u guys have a better oil I need to use ..jack

it's in the operators manual, pg 1-4.
With pto 10.5pts
without pto 9pts

Depends on which trans you have, early or late series. There are stipulations as to the oil level check point also. I can offer a more thorough explanation later if you don't have the change order manuals. Top quality 50 weight oil will also work great in sunny California.