How to Save Gas - FMVperformance.com : The site for all your Ford Mazda and Volvo needs
Reply
 
LinkBack Thread Tools
post #1 of 15 (permalink) Old 07-09-2008, 10:30 AM Thread Starter
Le Mans: Prototype Class
 
Join Date: Sep 2007
Location: Calgary
Posts: 1,434
Send a message via MSN to 423894
How to Save Gas

I recieved this email no too long ago I though I would share it. give it a read.


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 d 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 b uy 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 view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
423894 is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 07-09-2008, 10:45 AM
F1 Driver
 
Join Date: Feb 2007
Location: Connecticut
Posts: 38,702
Send a message via AIM to laraw
Re: How to Save Gas

Wow, good advice. I never would have thought of those.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

2007 Mazdaspeed6 GT in Black Mica
AutoEXE | Cobb | Corksport | Gram Lights | H&R | HKS | SURE | TWM
laraw is offline  
post #3 of 15 (permalink) Old 07-09-2008, 10:51 AM
Le Mans: Prototype Class
 
Join Date: Aug 2007
Location: IN THE HILLS OF TN
Posts: 2,350
Re: How to Save Gas

nice read
needmazda is offline  
post #4 of 15 (permalink) Old 07-09-2008, 10:56 AM
Le Mans: Prototype Class
 
Join Date: Oct 2006
Location: 33035
Posts: 2,141
Re: How to Save Gas

how to save gas...

brandontrek is offline  
post #5 of 15 (permalink) Old 07-09-2008, 11:20 AM
F1 Driver
 
fatabbot's Avatar
 
Join Date: Dec 2062
Location: Suburbia, Texas
Posts: 17,662
Re: How to Save Gas

[quote author=423894 link=topic=117104.msg2449974#msg2449974 date=1215613822]
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.
[/quote]

This might be a problem with older vehicles, but not newer ones. The gasoline doesn't have anywhere to go if it "evaporates", so you're not exactly losing any.

There are millions of little anecdotes on saving gasoline, few have been proven to work. For instance, the temperature of the gasoline in underground storage tanks varies very little throughout a day. Filling up in the morning won't get you but maybe a drop more gasoline. When you get chain emails like this one, just delete them.

fatabbot is offline  
post #6 of 15 (permalink) Old 07-09-2008, 11:32 AM
Senior Member
 
Join Date: Aug 2005
Location: Ellicott City, MD
Posts: 9,451
Re: How to Save Gas

[quote author=423894 link=topic=117104.msg2449974#msg2449974 date=1215613822]
I recieved this email no too long ago I though I would share it. give it a read.


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 d 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 b uy 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.
[/quote]

Been going around awhile.

The morning bit isn't particularly true, the temperature of the ground at the depth of the tanks varies little through out the course of the day, maybe 1-2 degrees at that absolute most, which is going to be less then a 1% variation in how much you actually fill with in terms of fuel weight. It varies some through the course of the year (say between winter and summer), but even then it isn't radical, more like a 1-3% difference in specific gravity due to temperature variation.

The fuel loss due to vapors is actually higher at a slower pumping rate, the fuel tank is allowing fuel to vaporize and escape over a much longer period of time, a high fill rate isn't going to significantly increase vaporization rate above and beyond what is going to already occur, and having the cap off for a much longer period of time will allow a greater amount of vaporization...which is still insignificant in terms of weight of fuel lost (less then one tenth of one percent if you left the cap off and the fuel flap open for say 10 minutes, a full tank of gas probably takes about a week or more to evaporate if you left the cap off and the flap open). This however is a huge contributor to hydrocarbon emissions...most HC emmissions occur during fillup, not during driving (with a modern car).

You lose very little fuel to vapor in your tank, and most that you lose is burnt anyway (that is what the carbon canister does, it collects fuel vapors from your tank and they get burned at startup). Air can only hold so much gasoline in it, just like air has a maximum water vapor content. A half empty tank with an air volume of say 8 gallons probably isn't going to hold more then about 1 tenth of 1 ounce of gasoline as fuel vapor, or less (about less then .01% of a gallon). However running your tank lower reduces vehicle weight a resonable amount which saves fuel by reducing the amount of energy required to accelerate your vehicle to a certain speed and reduces brake and tire wear on top of that. A gallon of gas weighs around 6lbs, so if you consistently run your tank to half a tank instead of 1/4 tank, you'd be losing the advantage of some of the time have up to about 25lbs less weight to your vehicle. Its small, but a 25lb reduction is pushing 1% of your vehicle weight...that means you are going to be saving maybe half that in energy use to accelerate your vehicle.

Fuel pumps also have filters built in to them, unless the filter has been removed, you aren't going to be sucking up large amount of crap in to your tank if the tanker truck is filling the station tanks.
-Matt
azazel1024 is offline  
post #7 of 15 (permalink) Old 07-09-2008, 11:38 AM
F1 Driver
 
siscim23's Avatar
 
Join Date: Apr 2007
Location: Miami, FL
Posts: 40,015
Send a message via AIM to siscim23
Re: How to Save Gas

Lawl this thread got owned.



siscim23 is offline  
post #8 of 15 (permalink) Old 07-09-2008, 12:14 PM
F1 Driver
 
Join Date: Feb 2007
Location: Connecticut
Posts: 38,702
Send a message via AIM to laraw
Re: How to Save Gas

Hahahah... good to know as well. xD


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

2007 Mazdaspeed6 GT in Black Mica
AutoEXE | Cobb | Corksport | Gram Lights | H&R | HKS | SURE | TWM
laraw is offline  
post #9 of 15 (permalink) Old 07-09-2008, 12:47 PM
Le Mans: Prototype Class
 
Join Date: Oct 2006
Location: 33035
Posts: 2,141
Re: How to Save Gas

[quote author=siscim23 link=topic=117104.msg2450154#msg2450154 date=1215617930]
Lawl this thread got owned.
[/quote]

werd
brandontrek is offline  
post #10 of 15 (permalink) Old 07-15-2008, 02:12 AM
Short Track Racer
 
Join Date: Jan 2007
Location: San Jose, CA
Posts: 112
Send a message via AIM to BigJonMoo73
Re: How to Save Gas

LoL... Well this thread was nothing but a waste of time. haha

2004 Mazda 3 5-Door, Titanium Grey, Tinted Windwows 20% on the Front, 5% on all the back. 18" Motegi FF7 Glossy Black Rims, N1 Tsudo Catback Exhaust More to come soon...
BigJonMoo73 is offline  
Sponsored Links
Advertisement
 
Reply

  FMVperformance.com : The site for all your Ford Mazda and Volvo needs > Misc > Lounge

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the FMVperformance.com : The site for all your Ford Mazda and Volvo needs forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome