Small diesel engines still don't have spark plugs like what one might find in a gas-powered mechanism. Instead, it creates ...

Gasoline fuels most light-duty vehicles, such as passenger cars and pickup trucks. Heavy-duty vehicles, like buses, delivery ...

Searching for a fuel-efficient car on a strict budget? Check out these 10 fuel sippers that cost less than $10,000.

In a gas engine, a small device called a spark plug ignites the compressed fuel-air mixture. It uses hundreds of thousands of volts to create an electrical arc that can start the burn, much like ...

Gasoline fuels most light-duty vehicles, such as passenger cars and pickup trucks. Heavy-duty vehicles, like buses, delivery trucks and long-haul tractor-trailers, typically run on diesel.