Benzene bunker fuel
This Mistake at The Gas Pump Can Cost You Plenty!
The costly mistake many drivers make when filling their car with gas is to overfill it by topping it off. When the gas pump nozzle clicks off, do you stop or do you keep pumping? Are you trying to add more gas your tank after the shutoff trying to stuff as much in as possible? Are you pumping more gas after the shutoff to round your total cost to the nearest full dollar amount? If either of these scenarios are true, or if any other reason causes you to top off your tank you have developed a bad habit that is costing you money and is contributing to air pollution.
Most gas stations are equipped with pumps that have vapor recovery systems to recover gas vapors keeping those vapors from getting into the air. If you top off your tank it will cause you to pay for gas that is drawn back into the gas station's vapor recovery system.
The extra gas you are trying to pump into your tank may just be drawn into the vapor line and back into the station's tanks. That means that you will be paying for gas that is not going into your car but is going back into the gas station's storage tanks. Of course the effect of this is to raise your cost of gas.
When you overfill your gas tank it is almost a certainty that gasoline will evaporate or will be spilled. If either of these or both of these occur it means buying gas that is not getting into your car. That has to hurt you in the wallet.
There are more problems you may encounter when topping off your gas tank. Gas expands as it gets warmer. This is certainly a big factor in the summer or in warm weather climates. Gas from underground tanks will generally be cooler than the air. As it warms up in your gas tank it expands. As the gas expands it requires more room in your gas tank.
If you top off your tank, there is no room for the gasoline to expand. What then happens to the expanding gas? It might find it's way into the vapor collection system of your vehicle. This will easily foul the system causing it to work poorly.
The gasoline that expands and is lost is gasoline that you spent your money on. That means that again, you spent money for gas that you are not able to use. As a result your cost of gasoline is increased. But you are not through loosing money! If the expanding gas finds it's way into your vapor collection system it could easily foul that system. If that happens your car will operate very inefficiently.
A vehicle that runs inefficiently burns more fuel which translates into spending more money on gas. That is a double hit in the wallet, once for the fuel that is lost directly and second for the additional gas your vehicle uses because it is running inefficiently.
Gas vapors are a major factor in adding toxic pollutants such as benzene to the air. This contributes to bad ozone days. Gas vapors are bad for your health and harmful to breathe. When you top off your tank you will end up with vapors released into the air. When this happens you are breathing in toxic fumes.
The next time you fill your car or truck, when the pump automatically stops your tank should be full enough. Do not top it off. Not only will you be saving yourself money, you will you be protecting your own health and you will also be helping the environment!
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