Mobil1 dropped BMW approvals in 2015 reformulation of their products. They had bit higher oxidation than BMW allowed (BMW approvals are strictest in that category). It could be that new Mobil1 formulation cannot meet certain aspects of VW approvals or VW updated their approvals (blenders know about updates far in advance, though, so this is possibly Mobil1 decision to reformulate).The jug I just bought 2 weeks ago has it printed on it. Maybe a formulation change coming like you said. I hope not as it's readily available and one of the least expensive 504/507s.