Someone sent me this the other day... don't know if they are true:
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 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!