Breaking in tractor engine after overhaul?
JD 9660
Posted 3/27/2026 19:11 (#11599205 - in reply to #11598968)
Subject: RE: Breaking in tractor engine after overhaul?


Southern PA
tractor0812 - 3/27/2026 14:03

Deere break in oil is 10W-30 instead of the normal 15W-40 and has a different additive package than Plus-50 II to help rings and liners break in properly.


Yep.
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