Engine oil capacity for JD 2040

[gjoehnk]

Just got an old jd2040 needs some help ... What is engine oil capacity and should I change oil quickly in order to flush it some ... If so will a cheap 30/40 weight work?

 

[beenthere]

What does "quickly" mean?

How about a pic of the new old 2040?

 

[M5farms]

7.2Qt

 

[M5farms]

https://jdparts.deere.com/partsmkt/document/english/featbene/AgFluidCapacities.pdf