yes this is a "gas thread" but not the typical one.
i just received a very interesting email from a person that works at an oil company in California for the past 31 years and had some interesting insight on good fueling tips. below is her email.
Enjoy
(begin quote/)
TIPS ON PUMPING GAS
>
> I don't know what you guys are paying for gasoline.... but here in California
> we are also paying higher, up to $3.50 per gallon. But my line of work is in
> petroleum for about 31 years now, so here are some tricks to get more of your
> money's worth for every gallon..
>
> Here at the Kinder Morgan Pipeline where I work in San Jose , CA we deliver
> about 4 million gallons in a 24-hour period thru the pipeline. One day is
> diesel the next day is jet fuel, and gasoline, regular and premium grades. We
> have 34-storage tanks here with a total capacity of 16,800,000 gallons.
>
> 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 more dense 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 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 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 is to fill up when your gas tank is HALF FULL> or HALF EMPTY. The reason for this is, th e 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 f the
> dirt that normally settles on the bottom. Hope this will help you get the
> most value for your money.
>
> DO SHARE THESE TIPS WITH OTHERS!
>
> WHERE TO BUY USA GAS, THIS IS VERY IMPORTANT TO KNOW. READ ON
>
> 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.
>
> Every time you fill up the car, you can avoid putting more money into the
> coffers of Saudi Arabia. Just buy from gas companies that don't import their
> oil from the Saudis.
>
> Nothing is more frustrating than the feeling that every time I fill-up the
> tank, I am sending my money to people who are trying to kill me, my family,
> and my friends.
>
> 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
>
> B P/Phillips............0 barrels
>
> Hess.......................0 barrels
>
> ARC0....................0 barrels
>
> If you go to Sunoco.com, you will get a list of the station locations near
> you.
>
> 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.
>
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