If you have an old, leaky fuel caps can also make your fuel tank easily accessible to thieves. With gasoline prices the way they are, every gallon counts, and criminals know that.
Types of Gas Caps
Most gas caps are fendercap'>lock and key function.
Other gas caps sit on the outside of the vehicle. These usually have a chromium finish so they add a little flair to the car or truck.
Gas Cap Functions
Gasoline caps serve a number of purposes by keeping your gasoline and its vapors inside the gas tank.
* Gasoline caps keep you safe. Without one, vapors can expand outside of the tank and car, which can be ignited from a spark or a crash.
* Fuel evaporation can drastically reduce your fuel efficiency. Gas caps keep the vapors inside the tank, where it can be used to power the engine.
* Gas caps are also good for the environment. Fuel tanks emit vapors that destroy the ozone layer.
