“Bad marriages happen by default, good marriages happen on purpose and for a purpose.”

TIPS ON PUMPING GAS

Only buy or fill up your car or truck in the early morning when the ground temperature is still cold. Remember that all service stations have their  storage tanks buried below ground. The colder the ground  the denser the gasoline, when it gets warmer gasoline expands, so buying in the afternoon or in the evening....your gallon is not exactly a gallon. In the petroleum business, the specific gravity and the temperature of the gasoline, diesel and jet fuel, ethanol and other petroleum products plays an important role.

A 1-degree rise in temperature is a big deal for this business. But the service stations do not have the temperature compensation at the pumps.
 
When you're filling up do not squeeze the trigger of the nozzle to a fast mode. If you look you will see that the trigger has the three (3)stages: low, middle, and high. In slow mode you should be pumping on low speed, thereby minimizing the vapors that are created while you are pumping. All hoses at the pump have a vapor return. If you are  pumping on the fast rate, some other liquid that goes to your tank becomes vapor. Those vapors are being sucked up and back into the underground storage tank so you're getting less   worth for your money.  

One of the most important tips are to fill up when your gas tank is HALF FULL or HALF EMPTY. The reason for this is, the more gas you have in your tank the less air occupying its empty space. Gasoline evaporates faster than you can imagine. Gasoline storage tanks have an internal floating roof. This roof serves as zero clearance between the gas and the atmosphere, so it minimizes the evaporation. Unlike service stations, here where I work, every truck that we load is temperature compensated so that every gallon is actually the exact amount.  

Another reminder, if there is a gasoline truck pumping into the storage tanks when you stop to buy gas, DO NOT fill up--most likely the gasoline is being stirred up as the gas is being delivered, and you might pick up some of the dirt that normally settles on the bottom.  Hope this will help you get the most value for your money.

Gas rationing in the 80's worked even though we grumbled about it. It might even be good for us! The Saudis are boycotting American goods. We should return the favor.

An interesting thought is to boycott their GAS.

I thought it might be interesting for you to know which oil companies are the best to buy gas from and which major companies import Middle Eastern oil.

These companies import Middle Eastern oil:

Shell........... 205,742,000 barrels
Chevron/Texaco......... 144,332,000 barrels
Exxon/Mobil............... 130,082,000 barrels
Marathon/Speedway... 117,740,000 barrels
Amoco............................62,231,000 barrels

Citgo gas is from South America, from a Dictator who hates Americans. If you do the math at $30/barrel, these imports amount to over $18 BILLION! (oil is now $90 - $100 a barrel

Here are some large companies that do not import Middle Eastern oil:

Sunoco................0 barrels
Conoco................. .0 barrels
Sinclair..................0 barrels
BP/Phillips.............0 barrels
Hess......................0 barrels
ARC0.....................0 barrels

All of this information is available from the Department of Energy and each is required to state where they get their oil and how much they are importing.