The Essential Guide to Oil-Fouled Spark Plugs Prevention, Diagnosis, and Repair

A spark plug is a crucial component. of your vehicle's ignition system, responsible for creating the spark that ignites. the fuel in your engine ... See coupons for Jiffy Lube services like oil changes, vehicle inspections, & tire, brake, or car alignments. Print or email your coupons. That's not necessarily true, in most cases, it's the spark plug tube itself, and not exactly the tube seal, because oil doesn't rise that ... They are simply asking you if the oil is on the outside part of the plug (white ceramic part) or on the inside part that goes inside the ... I would venture a guess and say it is oil from a leaking valve cover/spark plug tube seal gasket. Its leaking allowing oil to drop on the top ... It's probably your valve cover gasket. Replace it. I stick with OEM gaskets when it comes to stuff like that. I paid $15 for mine which includes ... That high on the plug may be a very slight leak of the valve cover gasket. I've seen some swimming in oil. But what you have is nothing to even think about ... The only thing that could make that happen is oil going into the intake manifold, or oil coming from the crankcase past the rings, vent pvc ... Learn more about why there is oil on the spark plug, what signs you need to look out for, how to clean the spark plug, avoid further leaks, and more. The oil is above the threads. It's from a VC gasket leaking down onto it. Or from pouring oil on it as mentioned above.