Amsoil 5W30 Euro, 2010 Jetta TDI, 9343 Miles

[rhhsiao]

Originally Posted By: A_Harman
Is it OK for a low-SAPS oil to have Phosphorous below 600 ppm? This UOA is showing 461 ppm. That puts it below the API minimum Phos content for SN oils. Or does that even matter in the VW spec?

Iron content is pretty high, and it's not trending down very quickly. I recommend shorter OCI's, and an oil with higher zddp that still meets VW 507.


That's the whole point of low-SAPS (sulfated ash, phosphorous and sulfur).

Iron content may be high but it's not terrible for this TDI engine series (40-50ppm after full break-in is pretty normal). I highly doubt there's an oil out there with higher ZDDP that meets VW 507. There is the possibility of finding a VW507 oil that has a higher HT/HS rating.

 

[Quattro Pete]

Originally Posted By: A_Harman
That puts it below the API minimum Phos content for SN oils.

Amsoil doesn't claim API compliance for this particular oil.

Quote:
Or does that even matter in the VW spec?

When it comes to most Euro specs, you can pretty much throw API out the window. Something like VW 504.00/507.00 exceeds API SN by a long shot when it comes to a number of performance parameters. With that said, Amsoil isn't officially VW 504.00/507.00 certified either, but recommended for.