Originally Posted By: addyguy
I checked, and it says SJ.......I wish there was an SM-rated straight weight. We'll probably never see it, though - not enough demand to develop it!
I have some here that I bought last year. It says API Service SM in the donut. You may be looking at a different Valvoline oil or an old bottle. The part number on this is VV153. I got it at Murrays, which is now owned by CSK so maybe if you have a CS or K store nearby, they would have or order some.