Though small, inexpensive and often overlooked, the spark plug is one of your engine’s most vital components. Like most parts of a vehicle, spark plugs need occasional attention — most often ...

For example, wrapping magnets around your fuel line will not double your mileage and the only way you will ever get 200 mpg with a carburetor is to make it so small that air and fuel flow are so ...

Unlike spark plugs that are necessary for combustion ... and type of vehicle. However, most small diesel engines require glow plugs or a heater source to assist in cold starts.