Bestcar17

With 31K on my car I've notice the tips are relatively clean, when I swipe my fingers in the tip opening,

Does this means little or no carbon build-up? Good gasoline grade? Good oil Viscosity? A healthy engine? all of the above or something else?

uberwgn

We hope it's an indication of not consuming any oil.

cuke2u

Long journeys more like, if you perform relatively short ones with a lot of stop start they will blacken and corrode..

Woodsie0520

I had a B8.5 A4 before my current B9 and the tips on the B8.5 definitely got a lot more carbon build up than the B9 does. Not sure if its something different in how the engine is. I wonder if the carbon build up on the valves will be any better as well. I was cleaning completely black tips once a week with my B8.5, but with my B9 I am just cleaning dirt now. Also my driving style hasn't changed with the different car. Still the same commute to work and the same running around town.