Oil on Spark Plugs? Learn the Common Causes & Step-by-Step Fixes!

Опубликовано: 10 Апрель 2026
на канале: Mechanical Special
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#sparkplug #oilonsparkplug #oil
Finding oil on your spark plugs is more than just a messy surprise—it's a sign that something's not quite right under the hood. In this video, we explain the common causes of oil on spark plugs and how to fix it.
The major causes of oil on spark plugs are worn valve gaskets, faulty O-ring seals, worn piston rings, a damaged cylinder head, a damaged head gasket, overfilling engine oil, or a bad PCV valve.

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TimeStamp
00:00 Introduction
00:35 Worn Valve Cover Gaskets
00:58 Faulty O-Ring Seals
01:20 Worn Piston Rings
01:46 Damaged Cylinder Head
02:07 Damaged Head Gasket
02:25 Overfilling Engine Oil
02:45 Bad PCV Valve

Disclaimer:
This video is just for educational purposes only. We are not in the auto repair business nor publish automotive service manuals. This video is not reviewed or authorized by any vehicle manufacturer. This video is intended only as general guidance. Every system is slightly different, so refer to the owner’s manual of your vehicle for any specific information about your model. Remember that only proper service and repair procedures will ensure your car's safe and reliable operation.

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