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I have seen several on this forum suggest using Shell Rotella oil for the M37.
My local tractor Supply has "Rotella T" oil. Is it the same stuff?

Also, they have their own brand (Traveller, I think it is called) of gear iol that is GL-5 rated and 80-90 wt. Anyone have any comments on this stuff?

For trans and tx case what is the Chevron substitute for 50 wt Synergen called? what other brands are Ok to use if I can not find these?

52m37Hal wrote:I have seen several on this forum suggest using Shell Rotella oil for the M37.
My local tractor Supply has "Rotella T" oil. Is it the same stuff?

Also, they have their own brand (Traveller, I think it is called) of gear iol that is GL-5 rated and 80-90 wt. Anyone have any comments on this stuff?

For trans and tx case what is the Chevron substitute for 50 wt Synergen called? what other brands are Ok to use if I can not find these?

Rotella T in the 15-40 grade is what you need, or any premium brand of 15-40 such as Chevron DELO 400. Not familiar with the make up of the Traveller gear oil, I would suggest sticking with a premium brand such as Chevron 80-90 gear lube with the GL5 rating for the differentials & winch. Any premium brand of heavy duty engine oil in a single 50 weight grade is great in the transmission & t/case. Chevron has this available also, if you have a local Chevron supplier/distributor, they should have all you need.