I’ll just point out these plugs are but 3 days old
possibly burning oil too, although the color and smell of exhaust would be a dead give away
Car is running rich.
Any other reasons you can think of?
The answer is the spark plugs go sooty because of either a rich mixture or a misfire caused by having a spark plug gap too big. CONGRATULATIONS YOU WIN
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I’ll just point out these plugs are but 3 days old
possibly burning oil too, although the color and smell of exhaust would be a dead give away
Car is running rich.
Any other reasons you can think of?
The answer is the spark plugs go sooty because of either a rich mixture or a misfire caused by having a spark plug gap too big. CONGRATULATIONS YOU WIN