Traditionally, car tires have been filled with compressed air. Air is 78 percent nitrogen and just under 21 percent oxygen, ...

In colder climates, vapor lock can occur if you are still using a winter fuel blend in your car when the weather is significantly warming up. Read more: Popular Synthetic Oil Brands Ranked Worst ...

Part of the car’s emissions controls, this charcoal-filled canister’s job is to absorb fuel vapor that would otherwise vent out to the atmosphere, causing pollution. Vapors trapped by the ...