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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-06-2013, 05:43 PM
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Gas Station Ripping people off?

Look at this I had 15 miles of range and I forgot to fill up and had to work in the morning. Right after work I filled up. I thought my tank was 18.5 gallons or is that UK gallons. Wouldn't this be impossible unless they are ripping people off.

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  #2  
Old 01-06-2013, 07:01 PM
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I dunno,
The only thing I can think of is that maybe listed tank capacity does not include the volume of gas that can occupy the fill duct.
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  #3  
Old 01-06-2013, 07:03 PM
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Oh check this out too:http://www.bimmerfest.com/forums/sho...d.php?t=324258
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  #4  
Old 01-06-2013, 08:13 PM
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Really???? Its possible
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  #5  
Old 01-06-2013, 09:27 PM
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one time i filled up 18.6 gallons and the gas started pouring out of the top, which scared the sh*t out of me for some reason.
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Old 01-06-2013, 10:20 PM
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It's possible for sure. I've done it many times at many gas stations.

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  #7  
Old 01-07-2013, 12:46 AM
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No-one else finds this ridiculous?
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  #8  
Old 01-07-2013, 02:28 AM
sexontoast sexontoast is offline
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Ive put 70~ litres in my 530i before, which is the same as 18.5 Gallons,

Only difference is, it cost me $1.60~ x 70 = $112
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  #9  
Old 01-07-2013, 05:44 AM
vavet5308 vavet5308 is offline
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The only way to know for sure is to start with an empty tank and fill it...but not even completely empty. You just want it to be empty to the point of all useable fuel being out of it. Unuseable fuel is a certain residual amount that cannot be pumped to the engine.
Did the pump have a recent sticker from your state weights and measurements division?
If you're really suspicious, you can always call that state agency and ask them to check it out.
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  #10  
Old 01-07-2013, 08:11 AM
cn90 cn90 is online now
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Off-topic, what you are doing is not good!

The Fuel Pump needs about 1-2 gallons of fuel to cool/lubricate.
Running the fuel tank close the empty risks damaging the fuel pump.
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  #11  
Old 01-07-2013, 08:16 AM
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I've heard that numerous times on these forums, I really don't think it makes much difference. As long as there is fuel running through the pump that should help to cool it from the inside out. Myself and many others I know always wait till empty to fill up, which for me was about every 2.5 days for a few years. I've never had a fuel pump fail. I think when it's their time to go, they go., regardless of refueling habit.

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  #12  
Old 01-07-2013, 08:30 AM
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I always re-fuel when the gauge reaches 1/4 or 1/5 mark.

Waiting until empty to re-fuel:
- risks being stranded for nothing.
- risks damaging the fuel pump.
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  #13  
Old 01-07-2013, 12:42 PM
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Originally Posted by jp5touring View Post
Really???? Its possible
Can't tell if you're sarcastic

I learned the hard way to keep an extra 2.5 gallons where the spare should be
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Last edited by hh3uunp; 01-07-2013 at 12:43 PM.
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  #14  
Old 01-07-2013, 01:32 PM
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Originally Posted by E36 Phantom View Post
I really don't think it makes much difference.
I think that it does make a difference and completely agree with CN90. The pump is only cooled by fuel, why put unnecessary stress on it? Not only that but you risk clogging your filter with the crud at the bottom of the tank.

The mileage saving you might get by running "light" is so small as to be insignificant. But to each his own.
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  #15  
Old 01-07-2013, 01:54 PM
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They are totally ripping you off, I think you should call 911, then call your lawyer and start assembling a legal team in order to mount a lawsuit against them.
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  #16  
Old 01-07-2013, 02:06 PM
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They are totally ripping you off, I think you should call 911, then call your lawyer and start assembling a legal team in order to mount a lawsuit against them.
Well I mean they only gave me 90% gas the rest was ethanol. I'm calling my lawyer
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Old 01-07-2013, 03:41 PM
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Quote:
Originally Posted by cn90 View Post
I always re-fuel when the gauge reaches 1/4 or 1/5 mark.

Waiting until empty to re-fuel:
- risks being stranded for nothing.
- risks damaging the fuel pump.
DING DING DING... Why wait? your always going to use the fuel. Whats the point of risking overheating the hump or sucking up sludge, oh ya running out of gas...
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Old 01-07-2013, 03:45 PM
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Because you forget and have to go to work and have no time for gas station. If I'm a minute late I get clocked for an hour.
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  #19  
Old 01-07-2013, 04:18 PM
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Quote:
Originally Posted by Mikes530 View Post
I think that it does make a difference and completely agree with CN90. The pump is only cooled by fuel, why put unnecessary stress on it? Not only that but you risk clogging your filter with the crud at the bottom of the tank.

The mileage saving you might get by running "light" is so small as to be insignificant. But to each his own.
It still
has fuel running through it, that's sufficient to cool it.

If I filled at a quarter tank I'd basically live at the gas station. Had nothing to do with mileage, I'd fill her all the way up and drain her down.

Fuel pumps fail, that's life. I think someone hypothesized that it was due to low level and it spread across the interwebs like those things do. Has anyone done a study of a fuel pump submerged in fluid while pumping and one constantly pumping fluid but in the open?

If it were running dry, yeah it would over heat the motor. But, as long as fluid is moving through the pump it should be fine.




Quote:
Originally Posted by Nline6 View Post
DING DING DING... Why wait? your always going to use the fuel. Whats the point of risking overheating the hump or sucking up sludge, oh ya running out of gas...
Running out of gas? maybe if you don't know your car.

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  #20  
Old 01-07-2013, 04:20 PM
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Quote:
Originally Posted by hh3uunp View Post
Can't tell if you're sarcastic

I learned the hard way to keep an extra 2.5 gallons where the spare should be
Not to be rude but im a little surpised at how silly the question is,,

Now im concerned for your safety,, You keep a extra 2.5 gallons in your trunk ????

That is truly a dumb idea,,,
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  #21  
Old 01-07-2013, 06:25 PM
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Originally Posted by jp5touring View Post
Not to be rude but im a little surpised at how silly the question is,,

Now im concerned for your safety,, You keep a extra 2.5 gallons in your trunk ????

That is truly a dumb idea,,,
How is that dangerous? Its protected by the spare tire. You know you're carrying 19 gallons in your car. All I'm saying is that its just as safe as a gas tank in your car.

In New England with really cold weather. 2.5 gallons can save your life. Ever since the Halloween Blizzard when the gas stations ran out of gas and no power for 10 days. I decided to keep extra 60 miles of range in the trunk.
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  #22  
Old 01-07-2013, 07:37 PM
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I typed /gasoline in the bestlinks and it came up with this, among many others:

- How large is the fuel tank and reserve in the E39 (1) & what gasoline to use (1) & how much gas should be left to cool the fuel pump (1) & how to siphon the fuel out of the tank (1) & what is the cost differential between 87 & 91 octane AKI (1)

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See also: E39 Bestlinks & How to easily find what you need
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  #23  
Old 01-07-2013, 08:25 PM
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..........If I'm a minute late I get clocked for an hour.
I think it's time for you to find a different work environment..........
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  #24  
Old 01-07-2013, 08:59 PM
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I think it's time for you to find a different work environment..........
I work at a jail so you kinda have to be on time
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  #25  
Old 01-08-2013, 12:45 AM
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I work at a jail so you kinda have to be on time
Or you might be doing time...

See what I did there?
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