I have found it for the GC green at 3.6, but can't seem to find it for the gold. If the GC gold actually is the SLX longlife, then the HTHS is only 3.0, and Audi suggests an HTHS of 3.5 or greater for the 2.7T motor. If so, I have 16 quarts of the gold on the shelf that I can't use !!