Originally Posted By: GordonC
Originally Posted By: dbrowne1
2. One of my criteria is 502.00 approval for warranty purposes, so Amsoil and Redline are out. It needs to be on the official list, not just "formulated to meet."
Here's the secret - you really want a VW 504/507 oil, not VW 502. 504 is a superset of 502, and meets VW warranty requirements where 502 is specified.
The difference is that 504 is a low SAPS Euro IV spec oil that also has lower volatility - a search here for "Lubrizol low SAPS" should find a link to a paper they published in 2007 showing that the new Euro IV compliant low SAPS oils show 40% less intake valve deposits in direct injection engines. In Europe, VW/Audi spec 504 oils for their direct injection engines. Here in North America, they spec 502, but 504 meets and exceeds 502. Several members have posted correspondence here from VW and Audi confirming that 504 spec oils are warranty acceptable, and I had this exact conversation with my Audi dealer yesterday and they also confirmed it (I am buying Castrol SLX LongLife LL03 from the dealer for mid-interval oil changes at home in my Audi S5, and they will use the SLX LL03 oil for my specified dealer oil changes (for an extra charge above their standard Syntec 5W40 502 oil).
The best part - SLX LL03 is around $9 per litre from our VW or Audi dealers, whereas you'll pay more than that for GC, Mobil 1 0W40, or any other 504 spec oil!
That's an interesting idea, and the 504/507 oils do seem to overlap the 502 requirements on paper. Mobil 1 ESP 5W30, Fuchs Titan GT1 Longlife III are also options.