Gas-powered internal combustion engines need spark plugs to (literally) ignite and complete the combustion stroke, enabling the motor to produce power. They may seem unusual to the untrained eye, but ...

Spark plugs are one of those maintenance items that, along with things like brake fluid and thermostats, are easily overlooked but extremely important to your car's safety, longevity, and performance.

Misfiring, rough idling, poor acceleration, and decreased fuel efficiency -- the four ominous horsemen of bad spark plugs. Nobody wants to ever get to that point before desperately changing such a ...

Not every driver knows how often they need to change spark plugs in their car. The frequency is determined by many factors, such as the material from which the center electrode is made, the operating ...

Almost every lawn mower owner has experienced the frustration of pulling the starter cord repeatedly only to have it sputter — or even worse, not start at all. While fuel issues, a dirty carburetor, ...

Read a good spark plug lately? We hope so, for your engine's sake. But spark plug reading—the traditional way to check your fuel mixture and monitor other vital conditions in the combustion chamber ...

Chrysler's 5.7-liter HEMI engine is one of the most iconic Mopar engines of all time. A lot of factors contribute to the 5.7 HEMI's power and performance, but one of its most interesting ...