Hey Roy,
Interesting reading — in digging through the 4 pages of “stuff” it appears that post # 12 hit it on the head — “Valvoline VR1 is still available and legal in California. Valvoline makes 4 “flavors” of VR1. The three obsolete ones are not available. The most popular and most used one…API SN/SM/SL is not obsolete and still available… “
I checked my spare oil and both my 20W-50 and 10W-30 VR1 list high levels of Zinc and API SN/SM/SL compliant labeling.
So at least for now, we old car owners, including the ones in CA, seem to be covered —
Happy Jack