When heat interacts with unburned fuel vapor, evaporated engine oil, and engine oil itself, it can form Carbon Deposits Sludge. It is a soft mud-like deposit that settles out of the oil, as the oil breaks down over time.
Spark Plug – How Do I Read, The Condition Of My Spark Plugs
Learning how to read the condition of a spark plug, can be a valuable tuning aid. You can determine a great deal about, your engine’s, overall operating condition. Usually, just by examining, the spark plugs […]