Originally Posted by Dannys M3
Joe your plugs look really good.
My car sees almost exclusively highway miles with occasional blasts at full throttle to give the car an "Italian Tune-up". Plus I run a bottle of Redline Fuel System Cleaner through it once every 5k miles or so.
I'm guessing your car sees mostly urban driving. That makes a big difference in how much build-up you can develop in the combustion chambers. Run some Techron, Redline or other reputable cleaner through your fuel system periodically to help keep things clean. Let it see 8000+ rpm every now and then, also.