The gas cap is one part of your vehicle that we bet you don’t give much thought to in spite of how often you use it. The thing is, a gas cap does a lot more than simply close off your vehicle’s filler ...

Gas tank caps: They play an important part in your car's fuel system, even setting off a check engine light on the dashboard if they go missing or aren't screwed on correctly after refueling. Yet ...

Most of us grew up with gas caps. Getting your driver's license and learning how to pump gas is a rite of passage for many in the U.S. — and a big part of that is twisting off the gas cap or at least ...