I worked at a grade a market,grocery store 1989 to 1994 , as a 14 to 19 year old.back in 1992 to 93, as a 17 to 18 year old,they had ShopRite I think brand oil, and Castrol. I think it was gtx. I don't remember what weight it was,im assuming 5w30. But onback of container,I seem remember Australia ,a trademark or something,a possible kangaroo. I remember the Australia wording ...seem to think a kangaroo was printed left of the Australia. Same store, sell Pennzoil yellow bottle now.