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Hey guys I rarely post stuff of this nature, but I wanted to share this info a friend of mine sent today. Good Info......

TIPS ON PUMPING GAS

I don't know what you guys are paying for gasoline.... but here in California we are paying up to $3.75 to $4.10 per 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. 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.​

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. You should be pumping on low mode, 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 of the 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. 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.
 

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Thanks for sharing Frank.:beer:
 

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great information
 

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If you actually think about it, it all makes sense. I think its good info Frank. Thanks.



Sent from my DROIDX using Tapatalk
 

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Not sure how much the filling when you are half full makes a difference. You have to remember that driving with a full tank gives you worse mileage than running with an empty tank. You have less over all weight to be lugging around.
 

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just about all of that is nonsense.


the temperature below ground pretty much stays the same year round. combined with the fact that the stations tanks hold THOUSANDS of gallons of fuel, how much expansion do you think is really going on over the course of 24hrs?

fill up when i'm half full? so carrying around an extra 150lbs worth of diesel is going to be out-weighed by the fact that slightly less will evaporate, riiiiiiiiiight. its evaporation, not an axe wound in the side of your tank.

dont fill up when the truck is there? debatable i suppose, but thats what fuel filters are for if you ask me. your car along with plants, trucks, storage tanks and pumps all have several of them.

i'm not defending oil companies or gas prices but c'mon, this is a bit ridiculous.
 

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Not sure how much the filling when you are half full makes a difference. You have to remember that driving with a full tank gives you worse mileage than running with an empty tank. You have less over all weight to be lugging around.
its been a proven fact and ive proven it myself....driving with a full tank and filling up before a half of a tank gives you better fuel millage.... i have a honda accord and if i go from full to empty i get about 26 mpg....if i go from full to 3/4 or 1/2 tank i get over 28mpg.... ive done this over and over....dont be hard headed prove it for yourself:2thumbs:
 

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its been a proven fact and ive proven it myself....driving with a full tank and filling up before a half of a tank gives you better fuel millage.... i have a honda accord and if i go from full to empty i get about 26 mpg....if i go from full to 3/4 or 1/2 tank i get over 28mpg.... ive done this over and over....dont be hard headed prove it for yourself:2thumbs:
oh yeah...we are discussing gasoline not diesel....im not a chemist but from my knowledge there is a difference between the two..... and yes gasoline expands and evaporates and higher temps has an effect on gasoline:2thumbs:
 

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I'm not too sure about all of this, pumping at low speed, well it takes long enough to fill my 32 gallon tank on high speed so that ain't happening. I may try filling up at 1/2 tank to check that one, but driving 800+ miles a week I'll be getting gas almost everyday. Filling up while they're filling, it happens sometimes but try to avoid it, because I have had water in my fuel after doing that, could've happened anyway at that station, don't know for sure. Have done it no problems also. The ground temp doesn't really change from night to day that much can't see a big gain from that. Interesting information, is it real or hype, without testing ourselves we really won't know!
 
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