Save on Gas - Fill Up Tips
- Fill up your car or truck in the morning when the
temperature is still cool. All service stations have their storag
e tanks buried below ground; and the colder the ground, the denser the gasoline. When it gets warmer gasoline expands, so if you're filling up in the afternoon or in the evening, what should be a gallon is not exactly a gallon.
- Fill up when your gas tank is half-full, because the more gas you have in your tank the less air there is and gasoline evaporates rapidly, especially when it's warm.
- If you look at the trigger you'll see that it has three delivery settings: slow, medium and high. You should be pumping at the slow setting, thereby minimizing vapors created while you are pumping. Hoses at the pump are corrugated; the corrugations act as a return path for vapor recovery from gas that already has been metered. If you are pumping at the high setting, the agitated gasoline contains more vapor, which is being sucked back into the underground tank, so you're getting less gas for your money
