I just noticed that the 12 qt boxes are API SP. Of the three 3-packs of 5 qt jugs, two are SP, and one is SQ. The day after I ordered the SQ 3-pack, the rollback disappeared. The current rollback is a few dollars more than the last, and I’m about to see if the pick-up store has SQ on the shelf. I guess they’re getting rid of SP. That’s about the only reason I can figure that they would pay FedEx to ship $5/qt oil thousands of miles. Twice.