CityTurbo.com

The oil in my recently purchased city2 is looking rather black, so I got myself an oil filter, and now wondering what oil you guys have found to be best

I am using Mobil 1 FUlly synthetic 5w - 50
not sure is 50 or 40 but 5w.
I think this is the best cause response better and smoother.

It seems to go black fairly quickly, probably because it is getting cooked a bit while cooling the turbo. Synthetic seems to be the go.