| A mistake that many drivers make when filling | | | | your gas tank. |
| their gas tank is to overfill it. In other words when | | | | If you top off your tank, then there is no extra |
| the gas pump nozzle clicks off automatically,do | | | | room for the gas to expand. Where does the |
| you keep pumping trying to add as much more | | | | expanding gas go? It may find it's way into your |
| gas as you can? Do you add more gas after the | | | | vehicle's vapor collection system. That could easily |
| shutoff to round out the dollar amount of the | | | | foul this system causing it to malfunction. If this |
| total. In either case this habit is most likely costing | | | | happens your vehicle will run poorly and have high |
| you money and is bad for the environment. | | | | gas emissions. |
| In most areas, gas station pumps are equipped | | | | The gas that expands and is lost is gas that you |
| with vapor recovery systems that draw gas | | | | have paid for. Again that means that you are |
| vapors back into their tanks to prevent those | | | | paying for gas that you can't use. Your cost of |
| vapors from getting into the air and thus | | | | gas is increased again. But that's not all that will |
| contributing to air pollution. If you top off your | | | | happen. If the expanding gas fouls up the vapor |
| gas tank it can result in your paying for fuel that | | | | collection system your car will operate less |
| is fed back into the gas station's tanks because | | | | efficiently. |
| that vapor recovery system is drawing gas back | | | | A less efficient car means less fuel efficiency |
| into the station system. | | | | which means you will use more gas which means |
| The extra gas you are trying to pump into your | | | | it will cost you more money. The result is you are |
| tank may just be drawn into the vapor line and | | | | hit double in the wallet, once for the gas that is |
| back into the station's tanks. That means that | | | | lost directly and second for the extra gas your |
| you will be paying for gas that is not going into | | | | car starts to burn because it is running inefficiently. |
| your car but is going back into the gas station's | | | | Double ouch!! |
| storage tanks. Of course the effect of this is to | | | | Gasoline vapors are a source of toxic air |
| raise your cost of gas. | | | | pollutants such as benzene and contribute to bad |
| When you top off your tank there is a good | | | | ozone days. Gasoline vapors are harmful to |
| chance that gas will evaporate or will be spilled on | | | | breathe. When you overfill your tank you will |
| the ground. Both of these things will cost you | | | | inevitably get some vapors released into the air. |
| money for gas that is not getting into your tank. | | | | When this happens not only are you breathing in |
| That is it bad for your wallet. | | | | toxic fumes but you are also contributing to the |
| There are more problems you may encounter | | | | air pollution problem. |
| when topping off your gas tank. Gas expands as | | | | The next time you fill your car or truck, when |
| it gets warmer. This is certainly a big factor in the | | | | the pump automatically stops your tank should be |
| summer or in warm weather climates. Gas from | | | | full enough. Do not top it off. Not only will you be |
| underground tanks will generally be cooler than the | | | | saving yourself money, you will you be protecting |
| air. As it warms up in your gas tank it expands. | | | | your own health and you will also be helping the |
| As the gas expands it requires more room in | | | | environment! |