Oil is like religion: Don't shoot the messenger, just thought I'd get the word out for anyone interested in such things.

SJ rated oil, looks like it's a Walmart thing.

At least it will probably be easier to get than alot of others, but being 20w50 only they limited themselves a bit.

https://www.castrol.com/en_us/unite...rands/castrol-gtx-brand/gtx-classic.html

https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/D020D7BFB1CB34448025867E0048D3EA/$File/WEPP-BYBE6A.pdf