fuel

[scooby999]

Got sent this in an email the other day,dont know if its ******** but might be worth a read.
> > Hi all,
> >
> > Not sure if you have seen this yet but it looks like some very interesting tips to help make the most of the fuel you add to a car.
> >
> > As the prices continue to rise to almost £7 per gallon, then any little tip will help.
> >
> >
> >
> > This email could save you bucks at the gas pump!! Read it carefully ~
> >
> > 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. 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. 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.
> > To have an impact, we need to reach literally millions of gas buyers. It's really simple to do.
> >
> > 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 it take?
> >
> >
> >
> >
> >
> > So from now on I can see us all waking up at 4am just to fill up the car

[Chunk]

Have heard of those tips before.

The cold ground one is very true as is the one about pumps being filled stiring up crap in the tank

[666subaru]

Interesting

[Lucky]

Some good tips, but filling up at half way???, I'd be forever in the petrol station

[andy-m]

have heard the bit about filling up cold before.
does sound plausable, but, i doubt it makes any difference. anyone thats been in caves before will know its always bloody cold down there, summer or winter. i dont think the ground temperature changes that much once you go down a few metres

[Hongkongfooi]

Good ideas there

[AndyWRX]

Some good tips there

[Chunk]

Gonna print this out & put it in my car. Worked out last night im doing 12mpg!!!

[Dyney]

It true, but will not have enough effect on your consumption to measure!!

"Specific gravity" effects the volume of fuel but unless your filling up massive amounts it will make no difference. Like the 50000 litres we put on Airplanes (and we only use the SG to get the weight acurate).
Once your a few feet down the air temp/sun will have no effect on the ground temp. (This is how Ground source heating works).


Fuel shouldn't evaporate out of your tank if you have a fuel cap on.

Etc
Etc...


If you go to these extremes to save fuel you will drive more economically and will notice your MPG go up

Originally Posted by Dyney

It true, but will not have enough effect on your consumption to measure!!

"Specific gravity" effects the volume of fuel but unless your filling up massive amounts it will make no difference. Like the 50000 litres we put on Airplanes (and we only use the SG to get the weight acurate).
Once your a few feet down the air temp/sun will have no effect on the ground temp. (This is how Ground source heating works).


Fuel shouldn't evaporate out of your tank if you have a fuel cap on.

Etc
Etc...


If you go to these extremes to save fuel you will drive more economically and will notice your MPG go up

Fill up late at night or early morning will save you fuel

Your not waiting in a que with the engine running listening to the stereo for as long

[NorthDownsScooby]

The usual abuse of scientific facts from a spam email - no surprise there then.

Theories are applied incorrectly and thus will make zero noticable difference to what you notice.

[Chunk]

All i know is, whenever or however you fill up, its gonna cost a packet

[Justin]

The bit about not filling when a tanker is in is true

[NorthDownsScooby]

Originally Posted by Chunk

All i know is, whenever or however you fill up, its gonna cost a packet

Amen.

[AndyWRX]

According to the budget petrols gonna fall by 1p, wonder how long before it goes up because of lybia?

[Chunk]

It will go straight back up coz they are taxing the oil companies extra, who will in turn charge more for the oil, thus putting prices back up