5 gallon pail of Castrol Universal Tractor Fluid, meets J20C.
I use thf in transfer cases and power steering too.
In the last few months, several oil filters, 9100s for Duramax and old Chevrolet V8s, 8As for the lawn tractor and 12750s for the 3.6L Acadia.
I’m over stocked in motor oil, my last purchase was 3 jugs of Delvac 10w30 FA-4 in February. That can go in something that calls for 0w20.