This is a Blackstone report. Sample Date 5/9/2009 MI/HR on Oil 6,573 MI/HR on Unit 33,661 ALUMINUM 3 CHROMIUM 1 IRON 31 COPPER 3 LEAD 1 TIN 0 MOLYBDENUM 74 NICKEL 2 MANGANESE 1 SILVER 0 TITANIUM 0 POTASSIUM 3 BORON 104 SILICON 6 SODIUM 5 CALCIUM 2659 MAGNESIUM 40 PHOSPHORUS 832 ZINC 973 BARIUM 0 SUS Viscosity @ 210°F 64.7 cSt Viscosity @ 100°C 11.54 Flashpoint in °F 385 Fuel % <0.5 Antifreeze % 0 Water % 0 Insolubles % 0.3 TBN 4.6 COMMENTS Everything looks great in this initial sample from your VW GTI. Universal averages show typical metals for VW's 2.0L after 5200 miles on the oil. You ran this oil 6573 miles, and most wear read average. Iron was a bit higher, but it's still okay. The viscosity read on the low side, but this wasn't caused by any fuel or other contamination, and it's really not a problem at all. The TBN read 4.6, still a strong reading. We consider a TBN of 1.0 or lower to be too low. Air filtration is performing nicely (see silicon). Nice engine!