Hybrid Car – More Fun with Less Gas

Gas Mileage: Whom Do You Trust? - Page 5

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Posted by =?iso-8859-1?Q?mark=5Fdigital= on July 29, 2006, 7:40 am

Maybe so Dave, but I don't see them jumping to correct an issue when they're
told about it either. 5 days went by before weights and measures guy finally
got around to check one station. Three pumps on two islands were shut down.
He was also reluctant to say how much the pumps were off because anyone with
a receipt has a legal right to be compensated.
I noticed self service stations are more likely to have pumps that are
inaccurate. I wonder why. Could it be that blanket one year testing
intervals are either too far apart or that volume should be the determining
factor instead of time? There's also an issue with the flow back valves that
are meant to keep the lines pressurized. When those valves don't work
properly not only do you have to pay for the gas to fill the hose you lose
out on the gas in the hose after the fill. The hose may contain as much as a
coffee can full of gas. I know because I used to siphon gas when I was a
kid. Instead of siphoning out it siphons back into their tank and the next
customer has to pay to fill the hose again. Yeah, it pays for them to be
woefully ignorant.

Posted by Bill on July 29, 2006, 9:57 pm

Back in the late '50s I had a 125CC BSA Bantam.  In those days the gas
stations all closed around 10 p.m.  I could get a tank of gas by draining
the hoses at a couple of stations.  :-)

Posted by =?iso-8859-1?Q?mark=5Fdigital= on July 30, 2006, 9:03 am

I had a quarter (25 cent piece) with a hole drilled in it and a first string
guitar string attached to it. I cleaned out the soda machines by dropping it
down the coin slot and pulling it back up over and over. I saw it done in a
movie used on a pay phone. But what goes around comes around. When my stolen
van was recovered the police said ever since the movie Terminator came out
the ignitions on the columns were being smashed just like in the movie. A
simple pull on the exposed metal bar started the engine.
They say movies and TV don't influence kids. Yeah, right.

Posted by Bob Wilson on July 29, 2006, 11:29 pm

I use the odometer/tank to track my overall MPG and the online display
to handle specific segments or learning how to best drive my Prius. With
just 10 months and a little over 14,000 miles, I'm running 51.4 MPG in
an NHW11, 03 Prius. Given the EPA rating of 52/45 (City/Highway), I'm OK
with the performance.

I find the MFD useful for specific, short term measurements but when it
comes to what I plan by budget or trips, I use my Odometer/tank
measured, MPG vs MPH chart:


Bob Wilson

Posted by Curtis CCR on August 1, 2006, 6:43 am

Davoud wrote:

I would trust the display.  It's tied to the very prcise fuel metering
system that sends gas to the injectors.  You have a big discrepency
that may be attributable to some filling errors - e.g.: early pump shut
off, car not level when filling, fuel coming from warm storage tanks.

While it doesn't make a noticable difference in a car that gets 50 mpg,
it is worth noting that you burn fuel by weight, not volume.

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