The current oil I'm using (Nulon 5W-30 Euro oil) meets or exceeds VW 504.00/507.00 spec but is not approved. It contains Moly, something which the manufacturer is proud of and states on the bottle and other media. However, the latest incarnation of this oil is now approved by VW, however seems to have lost the Moly.
I'm wondering if there is something in the VW spec which prevents Moly-containing oils being approved.
(I'm considering buying up old stock until to use until I find another oil I like for my vehicle, which is a SsangYong Stavic, which according to the manual requires MB 229.51 oil of 5W-30 grade, a spec which this particular oil also claims it meets but is not approved under.)
I'm wondering if there is something in the VW spec which prevents Moly-containing oils being approved.
(I'm considering buying up old stock until to use until I find another oil I like for my vehicle, which is a SsangYong Stavic, which according to the manual requires MB 229.51 oil of 5W-30 grade, a spec which this particular oil also claims it meets but is not approved under.)