if your spark plugs have oil in them what could this mean?
Nov 17, 2008 at 7:51 AM
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IMPALASS
✓Experienced Mechanic
3,112 POSTS
Hello –
There should never be any oil on the spark plugs. A little carbon buildup, perhaps, but no oil. That indicates an engine problem such as worn out piston rings, worn out valves, guides or guide seals.