T O P I C R E V I E W
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532Fastback
Member # 1482
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posted
Some of this i believe but some of it i am not sure on. I will try it next time i fill up, atleast the slow pumping cause i usually top it off and i can get another gallon or so in from that so maybe this explains why?
TIPS ON PUMPING GAS--GOOD INFORMATION.
I don 't know what you guys are paying for gasoline....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 through 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 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 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
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50DADDY
Member # 3076
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posted
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Venomized93
Member # 55
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posted
Interesting....
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hidnn.o.s.
Member # 1219
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posted
These tips are true, I've looked into this exact email in the past.
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BUKSING
Member # 6594
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posted
i dont believe it...seen this email too. ive pumped gas in the morning - afternoon and night and cant tell the difference. using the slowest pump setting? who wants to wait longer for a fill up... and i always fill up when the stations are being refilled...and i havent had to change my fuel filters any sooner than expected... i think its bs.
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532Fastback
Member # 1482
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posted
the station being refilled one i can see as true because water and dirt do get into fuel and when they are filling up the tanks i am sure it mixes all that crap on the bottom up with the gas.
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BUKSING
Member # 6594
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posted
quote: Originally posted by 532Fastback: the station being refilled one i can see as true because water and dirt do get into fuel and when they are filling up the tanks i am sure it mixes all that crap on the bottom up with the gas.
someones been tellin me that for years but i never believed it and my cars dont think so either..lol
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347_C.I.D.
Member # 2956
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posted
quote: Originally posted by hidnn.o.s.: These tips are true, I've looked into this exact email in the past.
ALL are true
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hidnn.o.s.
Member # 1219
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posted
quote: Originally posted by BUKSING: quote: Originally posted by 532Fastback: the station being refilled one i can see as true because water and dirt do get into fuel and when they are filling up the tanks i am sure it mixes all that crap on the bottom up with the gas.
someones been tellin me that for years but i never believed it and my cars dont think so either..lol
You and your car can keep thinking that
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Ls1camaro00
Member # 6238
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posted
i treid it just right now
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Wolfie351
Member # 651
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posted
All are absolutely true! Let's say you'll save 5 cents on every visit (a very liberal estimate)
If you go to the gas station once a week, that would be $2.60 in your pocket every a year. So, after 60 years of freezing your ass pumping gas in cold weather, topping off your half full tank (doubling your trips to the gas station) and waiting for the slow setting to fill it...you'll save yourself a whopping $156 in your lifetime.
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season'd 88
Member # 169
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posted
All that stuff is basically happy talk..imo. I think adjusting ones driving style to improve miles per gallon would have a more significant impact on your wallet.
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2stangs69-91
Member # 1951
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posted
here is my adjustment. I have to admit that paying that much money for better gass milage will take alot of years to pay for its self. but it sure has been a fun adjustment lol
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MustangNate
Member # 4559
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posted
I was getting about 15 - 16mpg in town with my Mustang, started running a short belt (no p/s, a/c, smog) and now I'm getting 19.5 - 20mpg in town.
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sharkattack
Member # 645
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posted
quote: Originally posted by season'd 88: All that stuff is basically happy talk..imo. I think adjusting ones driving style to improve miles per gallon would have a more significant impact on your wallet.
So true. I went from 26-27 MPG to 32-33 MPG just by driving the speed limit and never going over 2900 rpms in my VW GTI VR6.
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Hungry Hippo
Member # 537
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posted
not worth the hassle on such a small scale. those pipelines are pumping 3000 barrels an hour on each line
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mustanghp950
Member # 6589
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posted
if you pump cold gas into your tank it should be more condensed right? say you fill your tank up and only drive it a few miles and park the car all day. wouldnt the heat from the day cause the gas to expand within the tank and cause some major problems.
I say get the hell over it, using all of these you might save a dollar every time you fill up.
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Hozr
Member # 6196
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posted
Stirring sediment "dirt " is true but the only benefit of avoiding thi is to your fuel filter. Gas vapors and evaporation...are you kidding me?
Evaporation is not based on negative volume "air space" it is based on surface area. The tank is sealed and vents only if over pressurized due to a rapid increase in temperature or other external factor. How many threads have you read about "stale" gasoline that was left in the tank over a length of time? According to this article the tank should be dry.
The reason for the floating tank top is not to eliminate evaporation but to eliminate air, namely oxygen. If there is no air in the tank above the liquid there is no room for gasoline vapors to form. This is why tank fires occur at the rubber seals of the roof outside the tank...they're a bitch to put out!
The only reason for fueling slowly is spillage.
As the article states the gasoline in the ground is cool (Avg. 64.7F)and as it enters the warmer tank it expands...Oh my God! So what. ts the same amount of gasoline. You aren't paying any more for it. You pay for the amount that flows through the pump not the amount in the tank. If the gas came from storage and was measured for price, then warmed, then measured for volume and and you paid the difference between the two THEN you would be getting screwed. 10 gallons at the pump is 10 gallons in your tank.
The biggest loss comes from expansion and the gas over flowing the tank. Ever wonder why when you fill fast all of the sudden the tank is overflowing then it's gone? The rapid heating creates bubbles in the gasoline (like boiling water) before it settles out. The only time it really matters to fill slow is at the very end to avoid spilling it on the ground. The speed does not affect the accuracy of the pump measurements either.
Ahh I give up...Read this
http://i-r-squared.blogspot.com/2007/07/hot-gas-is-bunch-of-hot-air.html
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532Fastback
Member # 1482
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posted
quote: Originally posted by mustanghp950: if you pump cold gas into your tank it should be more condensed right? say you fill your tank up and only drive it a few miles and park the car all day. wouldnt the heat from the day cause the gas to expand within the tank and cause some major problems.
I say get the hell over it, using all of these you might save a dollar every time you fill up.
Thats what the carbon canister is for, it takes the gasolines fumes and puts it through the canister before releasing them to the atmosphere.
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532Fastback
Member # 1482
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posted
quote: Originally posted by Hozr: Stirring sediment "dirt " is true but the only benefit of avoiding thi is to your fuel filter. Gas vapors and evaporation...are you kidding me?
Evaporation is not based on negative volume "air space" it is based on surface area. The tank is sealed and vents only if over pressurized due to a rapid increase in temperature or other external factor. How many threads have you read about "stale" gasoline that was left in the tank over a length of time? According to this article the tank should be dry.
The reason for the floating tank top is not to eliminate evaporation but to eliminate air, namely oxygen. If there is no air in the tank above the liquid there is no room for gasoline vapors to form. This is why tank fires occur at the rubber seals of the roof outside the tank...they're a bitch to put out!
The only reason for fueling slowly is spillage.
As the article states the gasoline in the ground is cool (Avg. 64.7F)and as it enters the warmer tank it expands...Oh my God! So what. ts the same amount of gasoline. You aren't paying any more for it. You pay for the amount that flows through the pump not the amount in the tank. If the gas came from storage and was measured for price, then warmed, then measured for volume and and you paid the difference between the two THEN you would be getting screwed. 10 gallons at the pump is 10 gallons in your tank.
The biggest loss comes from expansion and the gas over flowing the tank. Ever wonder why when you fill fast all of the sudden the tank is overflowing then it's gone? The rapid heating creates bubbles in the gasoline (like boiling water) before it settles out. The only time it really matters to fill slow is at the very end to avoid spilling it on the ground. The speed does not affect the accuracy of the pump measurements either.
Ahh I give up...Read this
http://i-r-squared.blogspot.com/2007/07/hot-gas-is-bunch-of-hot-air.html
So if it expands when it gets into your tank doesn't that mean you will pump less than you need because the gasoline will condense over night in your tank?
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STANGUP_FAM
Member # 7736
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posted
bah hum bug Gas is still too expensive no matter how you try to squeeze nickel out of it. Lets market the flux capacitor and run our cars off of banana peels old McDonald cheese burgers.
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BUKSING
Member # 6594
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posted
quote: Originally posted by sharkattack: quote: Originally posted by season'd 88: All that stuff is basically happy talk..imo. I think adjusting ones driving style to improve miles per gallon would have a more significant impact on your wallet.
So true. I went from 26-27 MPG to 32-33 MPG just by driving the speed limit and never going over 2900 rpms in my VW GTI VR6.
i agree... the email is still bs...i get more savings by not driving so hard...but then again i cant help it... its only money and i enjoy burning it [ November 29, 2007, 07:18 PM: Message edited by: BUKSING ]
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John91coupe
Member # 18
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posted
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.
[I don't buy this one. Once you get below the surface by around 5 feet (less in most parts of CA) the ground temperature is about 55 degrees for a long way down. I would guess that the service station tanks are at least 6 ft plus below ground level.]
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 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.
[Ah! When guys with 400 plus HP cars start worrying about the loss of fuel due to fumes that they are not getting it's time to buy a VW bug.]
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.
[While this one is technically true, how long does it take between fillups with 400+ HP?]
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.
[Only one I agree with in this lineup. Not just dirt but water.]
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