I know that the OE recommended interval is 10,000 miles on VW 502 spec oil. But I also know that VW also included 30,000 mile free maintenance, so I'm skeptical if the 10,000 mile interval was to save money on the maintenance program. Hence why I decided to do a UOA to find out.
I'm not convinced the silicon is an issue, 14ppm seems too low to be a filtration issue, especially when that's only 6ppm higher than average. The air filter is only 1 year old and correctly installed by myself. Oil filter was a Mann Filter W719/45 (OE filter).
Drive cycle is 80% highway, but I do often drive it hard, redline shifts are quite common, that's how this car is meant to be driven. Typical 0W-40 shearing down to a thick 30 weight, but that's fine by me. I'm pleased with this result. Proof that not all DIs have crazy fuel dilution as well. With a 7.5 TBN, I'll plan on running the current fill out longer (I'm thinking 8,000 miles for this fill).