I have a 2005 GL with Trans code HFZ, which is 09G tiptronic. As far as I can find the VW spec is G055025 A2. Is this the same spec as JWS 3309 or Mobil 3309. Can it be replaced by Toyota T-IV? Amsoil says their (ATFQT) multi vehicle formula will work. I have original owners manual and it does not have any info on automatic transmission fluid! Please advise. Thanks!