Tire Changer Gearbox Oil?

[HeritageHighRoof]

Trying to figure out what kind of oil goes into a Coates 5060A tire changer gearbox/transmission. Looks thick like gear oil but smells different.

 

[atikovi]

SAE 80 gear lubricant.

https://images.myautoproducts.com/images/Product_Media/Manuals/COA/COA-5060AX_manual.pdf

 

[HeritageHighRoof]

Thanks for the info. I found some vintage Mopar 75W90 and used it for top off.