Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Dave W, How could you?

When the ducks line up. But the Dealer checked the fault codes and nothing there.

But the plugs are clean as a whistle. So logically, all it can be is secondary combustion in the cat, which reduces gas emissions at the tailpipe, and the soot is the consequence. There's no visible smoke.

Four years ago I cleaned and painted the insides of my Golf diesel tailpipes with hi temp paint. Some of you will remember when I had them red. Anyway, four years on the tailpipes are still clean. Makes me wonder about the bad diesel thing.