Unlock the Secrets of Oil-Fouled Spark Plugs Symptoms and Solutions

This oil almost always enters the engine on the combustion chamber side. The test then becomes locating the source of the oil. At Grease Monkey®, we are the original preventive maintenance pros. Besides our Full Service Oil Change and its 16 preventive maintenance check points, Although you do need to replace the valve cover gasket, the ounce of oil leaked into spark plug hole is not the cause of your oil consumption... Logical explanation seems to be bad valve seals. I just performed a leak down test earlier and a cylinder with oil on spark plug had the same ... What does it mean when you have oil on your spark plugs? Don't panic! Simple fixes could take care of it. Here's where you begin. If there is oil in the bottom of the well chances are the valve cover gasket is leaking. There is a seal around the bottom of each well. A lack of oil can cause severe friction and, overheating of the engine. There should be no leaks that allow oil to seep through the plug well. Make sure you replace those tube seals (that's what keeps the oil out of the spark plug tubes), they should come with the valve cover as long as ... 155 likes, 2 comments - usautoinspection on March 9, 2024: "Ever found oil on your spark plug and wondered why? Here are some common causes: ... The most obvious step to diagnose oil on spark plugs is to remove each of them and check for the presence of wet oil or a black, tar-like buildup.