Dodge Challenger Platinum Plug

The spark plug is an important component of the ignition system and is the one that must operate under the most severe conditions. Spark plugs are exposed to combustion chamber temperatures and contaminating products of combustion. It consists of a steel shell threaded to fit a standard hole in the cylinder head. Spark plugs may use a gasket or a tapered seat to ensure a gas tight fit between cylinder head and plug. Spark plug has precious and other metals in the center and side electrode. The metal channels the high voltage from the spark plug wire through the spark plug so it can spark when it goes across the small gap between the central electrode and the side electrode. This is the vital spark that starts the combustion process. Platinum is much harder metal than nickel alloy and has a higher melting point. A single platinum plug is much like a copper spark plug with a platinum disc welded to the center electrode, a double platinum spark plug has a platinum disc on both the center and side electrodes Platinum is much harder metal and has a higher melting point. Since platinum is harder, it holds its sharp edge much longer than a conventional spark plug, up to 100,000 miles. Longevity is a key advantage of platinum spark plugs. Another advantage of platinum spark plugs is that they run a little hotter, which burns deposits off the spark plug better and helps prevent fouling. Platinum also handles high heat, enabling the spark plug to wear better

Platinum is much harder metal than nickel alloy and has a higher melting point. A single platinum plug is much like a copper spark plug with a platinum disc welded to the center electrode. Since platinum is harder, it holds its sharp edge much longer than a conventional spark plug, up to 100,000 miles.

Electrical current travels from the battery to the induction coil, which raises the voltage to ignite the plugs. Spark Plugs are necessary to produce a smooth burn. Each spark plug is connected to an ignition system. When high voltage is generated by the coil, electrical impulses travel from the ignition coil through insulated plug wires. Spark plugs require voltage in excess of 20,000 volts from a lower voltage battery. Once the voltage exceeds the dielectric strength of the gases, a spark jumps the gap at the plug's firing end and the air/fuel mixture is ignited.

Platinum spark plugs are fitted on the engine cylinder head.