Correct 8.75 gear oil
I thought you were in South America. :usflag:
This would be my first choice. Inexpensive (relatively), mineral based, additive already blended in, available today at O'Reilly's on Highway 7 East. If you get clutch chatter, add
very small amounts of LS additive until it goes away. O'Reilly's shows that in stock, too, but it's very likely you won't need it.
https://www.oreillyauto.com/detail/...r-oil-80w-90-1-quart/cas0/8090?q=80w-90&pos=8