2nd Oil change, one year after purchase. Analysis by OAI.
First data = 5,000 mile sample / second data = 3,916 miles (8,916 on vehicle). Fuel used this interval was 100% Arco ECD-1 ULSD. Driving is 80% city, 20% highway. NewBeetle TDI, 5 speed transmission.
Spectrochemical (ppm)
Iron 111 /...