Dielectric grease is not an automotive necessity like oil or coolant, but it’s a popular product used in garages across the country. Most commonly applied on spark plug boots, lightbulbs, and battery ...

As you likely know, internal combustion engines that run on gasoline rely on spark plugs to initiate the ignition process. A high-voltage current is sent through the spark plugs, allowing them to ...

As we know, ignition wires and spark plug boots are usually close in proximity to the biggest heat source in the engine compartment – the exhaust manifold and headers – and that can mean trouble.