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Tips on pumping gas - in my inbox today

506 Views 7 Replies 6 Participants Last post by  Mrtambalynman
Only buy or fill up your car or truck in the early morning when the<br>
ground temperature is still cold. Remember that all service stations<br>
have their storage tanks buried below ground. The colder the ground the<br>
more dense the gasoline, when it gets warmer gasoline expands, so buying<br>
in the afternoon or in the evening....your gallon is not exactly a<br>
gallon. In the petroleum business, the specific gravity and the<br>
temperature of the gasoline, diesel and jet fuel, ethanol and other<br>
petroleum products plays an important role.<br>
> ><br>
When you're filling up do not squeeze the trigger of the nozzle to a<br>
fast mode. If you look you will see that the trigger has three (3)<br>
stages: low, middle, and high. You should be pumping on low speed,<br>
thereby minimizing the vapors that are created while you are pumping.<br>
All hoses at the pump have a vapor return. If you are pumping on the<br>
fast rate, some other liquid that goes to your tank becomes vapor.<br>
Those vapors are being sucked up and back into the underground storage<br>
tank so you're getting less worth for your money.<br>
> ><br>
One of the most important tips is to fill up when your gas tank is HALF<br>
FULL or HALF EMPTY. The reason for this is, the more gas you have in<br>
your tank the less air occupying its empty space. Gasoline evaporates<br>
faster than you can imagine. Gasoline storage tanks have an internal<br>
floating roof. This roof serves as zero clearance between the gas and<br>
the atmosphere, so it minimizes the evaporation. Unlike service<br>
stations, here where I work, every truck that we load is temperature<br>
compensated so that every gallon is actually the exact amount.<br>
> ><br>
Another reminder, if there is a gasoline truck pumping into the storage<br>
tanks when you stop to buy gas, DO NOT fill up--most likely the gasoline<br>
is being stirred up as the gas is being delivered, and you might pick up<br>
some of the dirt that normally settles on the bottom. Hope this will<br>
help you get the most value for your money.<br><br>
> ><br>
All of this information is available from the Department of Energy and<br>
each is required to state where they get their oil and how much they are<br>
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