Hybrid Car – More Fun with Less Gas

Fuel capacity

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Posted by =?iso-8859-1?Q?mark=5Fdigital= on June 20, 2006, 8:59 am
 


For three years my 2003 Prius has never taken more than 10.8 gallons for a
single fill. It's only reached that amount once. I've filled the tank in all
different climates and altitudes.
Imagine my surprise while I'm watching the pump go beyond 11 gallons and
finally click off at 12.395? I was pissed and confused too. I mean, the
weather has been great. I've kept my speeds to less than 55 and many other
things happened that should have resulted in fantastic mpg.
The damn nozzle was all the way inside too!!! Was I driving on fumes??

Anyway, not only did I say something to the station manager, I called the
Weights and Measures guy here in town. He's going to check it out but
noticed the station's last check was "recent" (6 months ago recent?).  I
also mentioned that another gas station (Sunoco) has pumps that jump up 3 or
4 cents before any gas flows. Sounds like the gas is flowing back into their
tanks (how convenient) after it shuts off.

What do you think about this 12.4 gallon fill up? Has anyone ever ran out of
fuel and filled the tank beyond 11.9 gallons?

TIA
mark_


Posted by Bill on June 20, 2006, 5:26 pm
 




I've been at one blinking bar and never managed to squeeze 10 gallons into
mine.  His pump is off and you can prove that by going back with a gas can
that holds a measured amount of gas.



Posted by PriusGeek on June 21, 2006, 11:38 am
 

Hmmm.  I routinely put around 11gal in mine (and have put 12 in)  with
up to 2 bars left.  I've had 2 Prii now (02 & 06) and love both of
them, but I have to say the gas guage is not one of their high points.
It tends to be erratic and just plain useless.  Also, the gas tank
bladder is affected by temperature and will accept different amounts of
gas depending on how hot it is.  When its cold out, its less flexible
and accepts less fuel.  Sometimes I can go 200+ miles before the first
bar shuts off on the guage.  Sometimes it will show 4 bars when I start
it up and I can go 20 miles and get a ding with the flashing bar.  Go
figure. It is possible that your gas station has a problem, but don't
discount the Prius completely.


Bill wrote:


Posted by Michael Pardee on June 21, 2006, 12:49 pm
 

Hmmm.  I routinely put around 11gal in mine (and have put 12 in)  with
up to 2 bars left.  I've had 2 Prii now (02 & 06) and love both of
them, but I have to say the gas guage is not one of their high points.
It tends to be erratic and just plain useless.  Also, the gas tank
bladder is affected by temperature and will accept different amounts of
gas depending on how hot it is.  When its cold out, its less flexible
and accepts less fuel.  Sometimes I can go 200+ miles before the first
bar shuts off on the guage.  Sometimes it will show 4 bars when I start
it up and I can go 20 miles and get a ding with the flashing bar.  Go
figure. It is possible that your gas station has a problem, but don't
discount the Prius completely.


I suspect much of the quirky behavior is in the programming of the display.
It seems to go to great lengths to smooth out its response, even to the
extent that you can add a couple gallons of gas and the display won't show
it. When the level gets lower it seems to get more "real." If that means
changing its mind from saying you had 1/3 tank to only one bar, so be it.

Mike



Posted by Bill on June 21, 2006, 5:40 pm
 


Hmmm.  I routinely put around 11gal in mine (and have put 12 in)  with
up to 2 bars left.  I've had 2 Prii now (02 & 06) and love both of
them, but I have to say the gas guage is not one of their high points.
It tends to be erratic and just plain useless.  Also, the gas tank
bladder is affected by temperature and will accept different amounts of
gas depending on how hot it is.  When its cold out, its less flexible
and accepts less fuel.  Sometimes I can go 200+ miles before the first
bar shuts off on the guage.  Sometimes it will show 4 bars when I start
it up and I can go 20 miles and get a ding with the flashing bar.  Go
figure. It is possible that your gas station has a problem, but don't
discount the Prius completely.

He put in 12.395 gallons, which exceeds the prius capacity.


Bill wrote:


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