I checked this out on SNOPES and it is listed as undetermined. Some of this is really common sense, once you think about it. Happy Pumping!
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, 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.
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
BP/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.
But to have an impact, we need to reach literally millions of gas
buyers. It's really simple to do.
Now, don't wimp out at this point.... keep reading and I'll explain
how simple it is to reach millions of people!!
I'm sending this note to about thirty people. If each of you send it
to at least ten more (30 x 10 = 300)...and those 300 send it to at
least ten more (300 x 10 = 3,000) .. and so on, by the time the
message reaches the sixth generation of people, we will have reached
over THREE MILLION consumers !!!!!!! If those three million get
excited and pass this on to ten friends each, then 30 million people
will have been contacted!
If it goes one level further, you guessed it .... THREE HUNDRED
MILLION PEOPLE!!!
Again, all you have to do is send this to 10 people. How long would
all that take?