I own a 5 speed bighorn and would recommend 80w-90 gear oil
as Geeves points out gear oil is designed for gearbox's
I tried engine oil in mine and it made getting into 2nd when cold a grawnchy businesses.
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- Wed Jul 22, 2020 6:02 am
- Forum: Drive train, Steering and Suspension
- Topic: What Oil In The Gearbox
- Replies: 10
- Views: 117