Just thought I'd share my gas fill-up / better mileage experiences from the last 4 months of driving.

First....short list of mods on the car and driving habits....

cobb tbe w/test pipe
okada projects coils
works filter
AccessPort custom tune
nisei intercooler pipes

Driving habits...in AZ hot A#$ weather...run AC and drive the car at posted limits or a little above....I don't jet take off from any lights and I may push the car hard once a week (during summer 100+ degrees)....about 95% of my driving is city.


Some tips for filling up gas I got in an email that I started using:

1. Fillup only in the AM hours...before 10am
2. Only fillup on the slowest speed setting...
3. always fillup at half a tank
4. never fillup when a gas tanker is pumping gas into the ground

There are reasons why for each point I can get to later but here has been my experience the last four months

I have been averaging 200-203 miles per half a tank of gas...so I always fill up 7 gallons....my average mpg has been between 28.1-28.8 or so each fillup.

Not too shabby

For anyone who didn't know these fillup tips they definitely work....prior to following these tips I never did any of them and I was usually only seeing about 19-20 mpg avg.

Good Luck & Safe Driving

 

I will try this for sure tonight and report my findings. Thank you.

 

1st rule is to only fill up in the morning hours....I can't remember the exact figures but it was something to the effect that for every 10degrees the weather goes up it attributes to the amount of gas fumes in the tanks below ground....essentially these tips will help to eliminate as much as possible the fumes going into your tank so the gallon that is purchased is actually a gallon

 

..

 

hmmm.... i will be trying these tips

 

why before 10am?

 

Thats why^^^^^^^^^

 

oops. thank you.

 

actually, you should fill up before 10am because the colder gas is the more the molecules contract and the higher the density, just like air

Filling up on the slowest setting could be to prevent air in the pump being metered... but I think thats a myth

Filling up at half a tank is totally false... How can it be better to carry around an average of 60lbs more weight? (gallon of gas weighs 8.33lbsx7 gallons)

Not filling when a truck is there is good because you don't pump the sediment and junk into your car that the tanker will stir up as it is filling the reservoir.

I'd follow # 1 and run your car to empty. Other than that, I wouldn't worry about these much. I'm thinking you are perceiving something that isn't actually real

PS, I upped my timing between 2k-3500 RPM and 60-120 load and have seen 1.5-3.5 better mpg since. Drink on that one . Get a wideband and do the new mrfred mod with a lambda of 15.5 and thats another 6% plus savings.

edit: and oh, never believe forwarded emails... and if you forward them you are contributing to a multitrilliondollar worldwide digital loss (not to mention the energy needed to maintain that if you care about that sort of thing)
http://www.snopes.com/inboxer/household/gastips.asp

 

I always fill up at a half tank. It makes me feel better when I see the price than if I had pumped a full tank. I spend on a half tank what I did on a full take with my OZ


I have heard about the tanker thing before. I was told that the sediments in the tanks are stirred up and will get into your tank easier. Yes every station has sediments in their tanks it is unavoidable.
I assume this is the reason you are saying this as well?

I also have to assume that filling up on the slowest setting has to do with fumes and pressure as well, like with the filling in the a.m.?

I had not heard of the filling at slowest speed or the a.m. thing before. I will have to give them a try. As for driving technique I try to do that anyway. Most of my driving though is rural driving. I just try not to drive like I am in a road course race

Raist

 

There are filters on all the pumps, so sediment is unlikley to make its way into your tank. If it does, most cars have fuel filters anyways.

Fumes will not cause you to pump less gas, nor will pumping slower. The handle clicks off when the nozzle senses LIQUID at the setpoint, not air or fumes.

Just drive slow, fill your tires up to the proper psi, or buy a prius.

 

none of these "tips" will work, don't waste your time...

 

The bad thing about running your car to empty is the “what if something goes wrong?” situation.

I have had some of those events take place and would have been in serious trouble had I been remotely close to empty. Taking the time to fill up is either not an option or takes to long. In some places the whole town also shuts down after 10 pm or midnight, not a time when you would want to be an hour from the nearest hospital or emergency care. In these cases you can certainly make it there before the helicopter or ambulance gets to where you are.

For instance where I work it will take a minimum of 15 minutes for the MedEvac to get to where we are, and that is if they are ready and waiting to a call. An ambulance depending on their route of travel will take nearly as long with them slightly over the limit; my car can get to the hospital in the time it takes for them to get to us traveling at safe road speeds. I am a trained first responder where I work and have heard this in our training time and time again from one of the MedEvac EMTs. Besides if my family calls about my wife or son I want to be able to get to them as quickly as possible without delay. The day my son was born I made it to the hospital in my OZ in 12 minutes traveling slightly over the speed limit (hey I was excited what can I say).
Again this might depend on the area you live in. Maybe in some cases it is “safer” drive with less fuel. Also in the winter here it would suck getting stuck out in the middle of nowhere with not enough fuel to run the car for heat.

My personal thought is have enough gas just in case. I would rather carry the extra weight and do other things to average out the MPG.

Raist

 

I agree

 

Check this out for the rebuttal to some of your statements....once again this is this guys' tips...not mine...I tried it and it really worked FOR ME...it may not for others


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 $4.30 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, then 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 when 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.

DO SHARE THESE TIPS WITH OTHERS!

WHERE TO BUY USA GAS, THIS IS VERY IMPORTANT TO KNOW.
READ ON

Gas rationing in the 80's worked even though we grumbled about it. It might
even be good for us! The Saudis are boycotting American goods. We should
return the favor.

An interesting thought is to boycott their GAS.

Every time you fill up the car, you can avoid putting more money into the
coffers of Saudi Arabia. Just buy from gas companies that don't import
their
oil from the Saudis.

Nothing is more frustrating than the feeling that every time I fill-up the
tank, I am sending my money to people who are trying to kill me, my family,
and my friends.

I thought it might be interesting for you to know which oil companies
are the
best to buy gas from and which major companies import Middle Eastern oil.

These companies import Middle Eastern oil:

Shell..................205,742,000 barrels

Chevron/Texaco........ 144,332,000 barrels

Exxon/Mobil............130,082,000 barrels

Marathon/Speedway..... 117,740,000 barrels

Amoco...................62,231,000 barrels

Citgo gas is from South America, from a Dictator who hates Americans.

If you do the math at $30/barrel, these imports amount to over $18 BILLION!
(oil is now $100 - $120 a barrel, so adjust the math)

Here are some large companies that do not import Middle Eastern oil:

Sunoco................0 barrels

Conoco................0 barrels

Sinclair..............0 barrels

BP/Phillips...........0 barrels

Hess..................0 barrels

ARC0..................0 barrels

If you go to Sunoco.com, you will get a list of the station locations near
you.

All of this information is available from the Department of Energy and each
is required to state where they get their oil and how much they are
importing.

But to have an impact, we need to reach literally millions of gas buyers.
It's really simple to do.

Now, don't wimp out at this point.... keep reading and I'll explain how
simple it is to reach millions of people!!

I'm sending this note to about thirty people. If each of you send it to at
least ten more (30x10=300)...and those 300 send it to at least ten more
(300x10=3,000).... and so on, by the time the message reaches the sixth
generation of people, we will have reached over THREE MILLION consumers !

Again, all you have to do is send this to 10 people.
How long would all that take?

Regards,

Chuck

Chuck Mahoney
Peace Vanguard Comptroller
System Studies & Simulation Inc.
chuck.mahoney@us.army.mil <mailto:chuck.mahoney@us.army.mil>
Alt email: YLOMACH1@msn.com <mailto:YLOMACH1@msn.com>
Office Phone: 520-750-5471
DSN: 853-5471
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