2017 VW GTI, Castrol 0w-40, 5k mile UOA

[Coogles]

Vehicle is stock and had an unknown oil change history prior to my ownership.

 

[skyactiv]

Good report. That engine uses an iron block which might explain the iron being a little higher than seen on other engines. That engine is tuned for 91+ octane and doesn't indicate fuel dilution like some other T-GDI engines tuned for 87 octane.

 

[Snagglefoot]

Good data point on the amount of shearing. There was a VOA posted with a V100 of 13.7 cSt. This UOA indicates it sheared down to 11.66.