What happens if my gas cap is left off? Why does it cause the check engine light to come on? Have I done some damage to the engine? These are very common questions, and luckily there’s an easy fix and ...

For a component that’s not much different from the lid of a jam jar, gasoline caps inspire lots of passion. Why doesn’t a new Toyota Sienna minivan have a lanyard so you don’t drive off and leave the ...

The state of Arizona is giving away free gas caps. Not to just anyone. And in fact the cost is being picked up by the company that has the contract with the state to do vehicle emission checks. But ...

In a recent column, you talked about how a vehicle’s emissions system monitors itself for leaks. And that if a gas cap is loose and lets vapors escape, that will turn on the check engine light. Well, ...

In a recent column, you talked about how a vehicle’s emissions system monitors itself for leaks. And that if a gas cap is loose and lets vapors escape, that will turn on the check engine light. Well, ...

Ford is rolling out its new 2009 lineup, and most models are getting a gas-cap-less tank. Ford calls this “EasyFuel,” not to be confused with “FlexFuel,” which means the car can run on E85. In fact, ...