Otto Skorzeny - maybe I don't have a problem?
You don't.
I should take pictures of the black spots behind all of my cars. They're all tuened properly and run like Swiss watches. The Packard, AD Chevy, and Mustang all have black spots on the floor that deposits on startup.
The Cadillac has black deposits in the bumper exhaust ports.
The Ford trucks blast soot onto the garage door.
Once they're all warmed up the exhaust is clean and the engines run just fine.
