View post: REI Has a 'Comfortable' Rain Jacket on Sale for Almost 50% Off This spark plug tester features an innovative dual-socket design, allowing you to test two spark plugs simultaneously. By ...

Simply put, getting the maximum power from any race engine is a function of the temperature, pressure and timing of combustion gases in the cylinder. Since it would be expensive and impractical for ...

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Do you routinely struggle to get your car to start? Are you ...

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 ...

Fouled or worn spark plugs can reduce efficiency, so swapping them for new plugs can help improve your car's fuel economy.