Here's a VOA of another Mobil 1 SN rated product - this time it's Mobil 1 5W-30 EP SN. Note that the additive package has changed, but very similar to Mobil 1 0W-20 SN, in that it uses a combination of Calcium and Magnesium for detergent additives. I am also shocked at the high TAN! TBN also lower than previous Mobil 1 5W-30 EP. For comparison purposes, see the link to the recent Mobil 1 0W-20 SN here. Enjoy!