Help oil on spark plug thread
The oil on the threads is prolly leaky valve seals
Was it you that did the plug change?
You did a spark plug and wires change then the engine started running poorly. No doubt it's the parts or their installation that's causing the poor running condition.
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Davis Unified and Moroso also make nice wire sets. Stay away from what's normally stocked at places like Pep Boys and AutoZone. Don't consider Taylor.






