You got some newer stuff then.
All 16 of mine are just SN, but most of them are from 2018 with a few 2017.
Not an issue though, I plan on using them in my mom's 2018 Kia Soul which is a SL/SM/SN requirement.
I don't think 10w-30 is an issue for SN+ certification, but it is an issue for Dexos.
Exxon-Mobil base stocks are the only ones that can make SN+ with group II.
How do you know this? I've seen this mentioned a few times.. what exactly does this mean? Are you suggesting Chevron or Conoco (for example) grp2/2+ base stocks can't meet API (SN)+ requirements and that they're are buying from XOM??.. I find that hard to believe because what blender would buy Chevron grp2 stocks?
And correct me if I'm wrong a change in base stock isn't needed to meet SN+ from API SN since calcium has been identified as the main antagonist to LSPI, so a rebalancing of Cal/Mag has been the preferred approach to passing the Sequence IX test to gain SN+ approval, right???
*some lube mfgs take a slightly different approach to addressing lspi by use also of moly and titanium chemistries
PQIA - LSPI
Mobil1 met d2g2 before the spec. existed .....I wonder if the Mobil SS did too? (Mobil had lowered calcium in M1 around 2010 according to what I've read on this site). I ask because I scored several qts. at the AA 'Clearance' in late 2019...some are marked SN+ but most are just SN...