When you find yourself in the market for a new vehicle, you may have to pick between a diesel- or gas-powered car. As a fuel, diesel may be a little more expensive than gas, but it comes with a host ...

For hot rodders, spark plugs are often nothing more than inspection tools that reveal whether an engine is running too rich, too lean, or just right. Street guys look for a nice tannish-brown tint on ...

In order for any internal combustion engine to function properly, you need three basic things: air, fuel, and spark. Air mixes with the fuel, providing an explosive catalyst. The engine compresses the ...