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Prius Gas Gauge - Page 4

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Posted by David Kelly on October 7, 2007, 4:06 am

Elmo P. Shagnasty wrote:

As unbelievable as it may sound there were no other gas stations the
past 20 miles. Every one was boarded up closed. And why worry if the
light is not flashing and I have always been able to drive at least 20
miles and as much as 70 on a flashing light?

The fool gauge behaves pretty much the same as any other car. "It has a
bladder in the gas tank, its different!" say those who only want to be
different. I find the only difference is the lack of accuracy in the low
fuel warning light.

Posted by greenpjs on October 7, 2007, 1:24 pm


With my 2004, I have noticed that the bladder does make difference,
but that difference shows when you fill the tank.  We have vapor
recovery gas pumps here and that seems to mean the fuel flows slower
from the pump.  I typically can only get 10 gallons in when nearly
empty.  In a neighboring county with older pumps, the fuel flows
faster and I can get approx 1.5 gallons more into the tank before the
nozzle shuts off.  One time my wife "tried" to fill the tank at a
station with extremely slow pumps.  She only managed to get 7 gallons
in.  I think the faster the flow, the more the bladder can be
expanded.  That really messed with people using miles driven as an
estimate of fuel left.  All this is from my car only.  Anyone else
notice the same thing?

Posted by David Kelly on October 7, 2007, 3:17 pm

greenpjs wrote:

I always fill my 2007 on the slowest setting and get reasonable fills
each time. The first bar dims between 120 and 140 miles.

Once tried to top off the tank after only 80 miles. That pump didn't
want to put any gas in the tank. Later with 300+ miles on the tank the
same pump pumped a reasonable fill.

6 months ago it wasn't unusual for me to bounce between 48 and 58 MPG as
measured at the pump. My technique has improved since. But nothing as
extreme as 7 gallons when 10 was expected.

Posted by bob on November 20, 2007, 1:48 am

yes, i noticed somtimes i get 520mi before the last bar blinks; sometimes i
get 450mi before it blinks - both under similar driving conditions. but when
i refill, the mpg seems to be the same. seems that it doesn't totally fill
to same spot each time.


Posted by Tom Ricostronza on October 4, 2007, 4:51 am


Talking bladder...the first time I filled up my brand new Prius, I set
the pump auto fill hook and somehow the bladder kicked back and gas
was bubbling out of the tank AS IT WAS FILLING.  So I got my first car
wash, toot sweet.  Bladders.

And every car I've ever had displays full until about a quarter of a
tank is used up.

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