i have seen assorted QS, PZ, motorcraft, supertech synthetic and syntec (gf5) SN but not mobil, castrol or valvoline...i was wondering when they are going to sn/gf5?
M1 and Pennz. have their SN Cert. they are waiting for stock depletion and in my opinion going to milk DEXOS1 for a while before we see PP and M1 5w30 SN on the shelves actually marked SN. I would put money OTOH that those Mobil 1 bottles with the new colors and PP are already formulated for SN (as long as the bottles are not too old and the grades that will switch to SN ie.5w20,5w30.) the 10w30 will probably remain SM.