Went to Target today,they have SL oil in Shell and Castrol brands of oil.
I didn check the other brands,it may be SL also.
This is in the Lexington KY Target.
Some seem to like the older SL because of the zinc content.
Here in Florida, Target seems to be backing away from the oil market. Their shelf space is down by about 2/3 from what it was two years ago or so. All they have is some Pennzoil and an assortment of older M1. I don't pay much attention at TGT any more as their's so much more to pick from at other stores.