But if it's not found until it's more advanced, the high iron levels can damage parts of the body. This can lead to potentially serious complications, such as: liver problems â including scarring of the liver (cirrhosis) or liver cancer. diabetes â where the level of sugar in the blood becomes too high.
Iridium vs Platinum Spark Plugs. Aside from the very common copper spark plugs, there are two other options for most users; platinum and iridium plugs. Both types have the very same parts and construction, the only difference between iridium and platinum spark plugs is the metal used for the center electrode. As you may already have figured out, platinum plugs use platinum while iridium plugs use iridium for the tip of the center electrode.
Full Answer. A spark plug can be fouled by fuel, oil and carbon. Worn or damaged pistons or valve guides allow oil into the combustion chamber, which drips onto the spark plugs. This causes oil-fouled spark plugs and is characterized by dark, wet, thick deposits on the tip of the plug. Carbon-fouled spark plugs are usually caused by a too-rich air/fuel mixture. This produces dark, fluffy deposits on the tip of the plug. A leaky head gasket can also be a cause of this type of fouling.