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12425 - Established June, 2013 - all GRiSO, all the time...
 
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 Gear oil question for Pete or other mechanics in the know....

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Gootzibird13
Biondino
Biondino
Gootzibird13


Posts : 228
Join date : 2020-10-17

Gear oil question for Pete or other mechanics in the know.... Empty
PostSubject: Gear oil question for Pete or other mechanics in the know....   Gear oil question for Pete or other mechanics in the know.... Icon_minitime1Sun May 22, 2022 5:08 pm

I recently purchased a liter of Motul 80w -90 gear oil. It has molybdenum additive mixed in. It has a GL- 4 and GL- 5 approval. It has the obvious color of metallic grey from moly additive. Is this product ok for use in the final drive (bevel box) on my GRiSO?
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 10546
Join date : 2013-05-29
Age : 67

Gear oil question for Pete or other mechanics in the know.... Empty
PostSubject: Re: Gear oil question for Pete or other mechanics in the know....   Gear oil question for Pete or other mechanics in the know.... Icon_minitime1Sun May 22, 2022 5:59 pm

It should be but isn't specified. Moly does have a habit of causing scuffing in some RE bearings, given the needle roller at the nose of the pinion is a bit wear prone anyway I probably wouldn't use it as a first choice but I wouldn't die in a ditch over it either....
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Gootzibird13
Biondino
Biondino
Gootzibird13


Posts : 228
Join date : 2020-10-17

Gear oil question for Pete or other mechanics in the know.... Empty
PostSubject: Re: Gear oil question for Pete or other mechanics in the know....   Gear oil question for Pete or other mechanics in the know.... Icon_minitime1Sun May 22, 2022 6:26 pm

Copy that Pete. Wasn't aware there was needle bearings in the pinion. Never went about a complete pinion rebuild before. Just replaced inner and outer roller bearings on one while switching casings. Of which, I learned how to from you by the way....TY Sir
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Gear oil question for Pete or other mechanics in the know.... Empty
PostSubject: Re: Gear oil question for Pete or other mechanics in the know....   Gear oil question for Pete or other mechanics in the know.... Icon_minitime1

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