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Old 07-11-2005, 14:01   #1 (permalink)
transport truck & bus
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Drivers your mileage will vary

Drivers are complaining that their real-world fuel economy doesn't
match up with the official estimate given by the Environmental
Protection Agency (EPA)...

So why doesn't the car or truck you drive to and from work every day
get the same fuel economy the government, the manufacturer, and us
trusted legions of automotive journalists seem to promise it will?...

The answer is as simple as it is ultimately complex. New vehicles, as
tested for their energy consumption, are never actually driven
anywhere, much less to and from work, and their fuel economy ratings
are not ultimately based on how much fuel they consume...

http://infotruck.blogspot.com/2005/0...will-vary.html

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Old 07-11-2005, 14:01   #2 (permalink)
Jeff Strickland
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Re: Drivers your mileage will vary


"transport truck & bus" <santiago.rz@gmail.com> wrote in message
news:1121094223.430401.190510@g14g2000cwa.googlegroups.com...
> Drivers are complaining that their real-world fuel economy doesn't
> match up with the official estimate given by the Environmental
> Protection Agency (EPA)...
>
> So why doesn't the car or truck you drive to and from work every day
> get the same fuel economy the government, the manufacturer, and us
> trusted legions of automotive journalists seem to promise it will?...
>
> The answer is as simple as it is ultimately complex. New vehicles, as
> tested for their energy consumption, are never actually driven
> anywhere, much less to and from work, and their fuel economy ratings
> are not ultimately based on how much fuel they consume...
>



And, even if they WERE driven anywhere to judge the fuel consumption rates,
they would roll on the gas very slowly, and stop feeding gas at every
opportunity. As they approach a red light or a known stop sign, they will
coast to the limit line as much as is reasonably possible. Most people that
complain about fuel mileage have a very heavy foot on the gas, and a very
late foot on the brakes. I see people on the freeway that don't even lift
off the gas when they see traffic slowing ahead, they drive into the traffic
until the very last second, then mash the brakes. As I am observing this
behavior, I have lifted my foot off the gas in anticipation of the impending
stop, then by the time I get there, the traffic begins flowing again and I
might not even need to use the brake, and I use less gas in the process.






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Old 07-11-2005, 15:01   #3 (permalink)
SC Tom
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Re: Drivers your mileage will vary


"transport truck & bus" <santiago.rz@gmail.com> wrote in message
news:1121094223.430401.190510@g14g2000cwa.googlegroups.com...
> Drivers are complaining that their real-world fuel economy doesn't
> match up with the official estimate given by the Environmental
> Protection Agency (EPA)...
>
> So why doesn't the car or truck you drive to and from work every day
> get the same fuel economy the government, the manufacturer, and us
> trusted legions of automotive journalists seem to promise it will?...
>
> The answer is as simple as it is ultimately complex. New vehicles, as
> tested for their energy consumption, are never actually driven
> anywhere, much less to and from work, and their fuel economy ratings
> are not ultimately based on how much fuel they consume...
>
> http://infotruck.blogspot.com/2005/0...will-vary.html
>


Actually, I was very surprised that I get better mileage around town and on
the highway than my EPA estimate. I have a 2002 Escape 4x2 with the 3.0L V6.
EPA city- 19 MPG. My actual- 20-22
EPA highway- 24 MPG. My actual (based on 3 700 mile and 2 420 mile trips)-
26-28
I don't baby the SUV, nor do I drive like a maniac. I've had no trouble with
the SUV, and change the oil every 3K miles, and the air filter every 6K.
All this said, I still believe you are correct in the assumption that the
EPA mileages are based on unrealistic driving conditions.
SC Tom


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Old 07-11-2005, 18:01   #4 (permalink)
ronlin
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Re: Drivers your mileage will vary

It also varies with the terrain. My truck normally gets about 21 mpg,
mainly highway miles. A few years ago I drove to the Mid-west and got 26
mpg. Last year I hada trip that ended up winding over the Appliacians,
the average was only 17mpg. Neither trip had a significant amount of
city driving.

transport truck & bus wrote:
> Drivers are complaining that their real-world fuel economy doesn't
> match up with the official estimate given by the Environmental
> Protection Agency (EPA)...
>
> So why doesn't the car or truck you drive to and from work every day
> get the same fuel economy the government, the manufacturer, and us
> trusted legions of automotive journalists seem to promise it will?...
>
> The answer is as simple as it is ultimately complex. New vehicles, as
> tested for their energy consumption, are never actually driven
> anywhere, much less to and from work, and their fuel economy ratings
> are not ultimately based on how much fuel they consume...
>
> http://infotruck.blogspot.com/2005/0...will-vary.html
>


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Old 07-11-2005, 18:01   #5 (permalink)
Ed White
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Re: Drivers your mileage will vary

The method used to for the EPA estimates is consistent from car to car.
However, the cycles used don't match the way most people drive their
cars. Still you can use the number for a comparison to other similar
vehicles.

See http://www.fueleconomy.gov/feg/how_tested.shtml .

Ed White

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Old 07-11-2005, 21:01   #6 (permalink)
mudmonkey
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Re: Drivers your mileage will vary

And don't forget to include the fact that many car makers are "padding"
there fleet averages to meet federal standards. I find it hard to
beleive that ford, chevy or dodge; all boasting about maximum horse
power and torque are capable of truelly averaging out to 30 plus mpg.

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Old 07-11-2005, 23:01   #7 (permalink)
hachiroku
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Re: Drivers your mileage will vary

On Mon, 11 Jul 2005 08:03:43 -0700, transport truck & bus wrote:

> Drivers are complaining that their real-world fuel economy doesn't match
> up with the official estimate given by the Environmental Protection Agency
> (EPA)...
>
> So why doesn't the car or truck you drive to and from work every day get
> the same fuel economy the government, the manufacturer, and us trusted
> legions of automotive journalists seem to promise it will?...
>
> The answer is as simple as it is ultimately complex. New vehicles, as
> tested for their energy consumption, are never actually driven anywhere,
> much less to and from work, and their fuel economy ratings are not
> ultimately based on how much fuel they consume...
>
> http://infotruck.blogspot.com/2005/0...will-vary.html


He's right! I generally do much, much better! My 'hachiroku' was rated at
22 city/28 highway; I AVERAGED 33-36 combined. My '95 Tercel was rated 34
highway, I averaged 42 combined. My LHS was rated 26 Highway, I average 27
combined.

All in how you drive, I guess. Although I am not known for ripping the
tires off my cars, I also am not known as a slouch, either.

So there...
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Old 07-11-2005, 23:01   #8 (permalink)
Merritt Mullen
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Re: Drivers your mileage will vary

In article <1121138331.954165.293260@z14g2000cwz.googlegroups.com>,
"mudmonkey" <MatandLaura@gmail.com> wrote:

> And don't forget to include the fact that many car makers are "padding"
> there fleet averages to meet federal standards. I find it hard to
> beleive that ford, chevy or dodge; all boasting about maximum horse
> power and torque are capable of truelly averaging out to 30 plus mpg.


Not sure about this, but isn't that because only passenger cars (and not
pickup trucks or SUVs) count towards the corporate fleet average? Also,
some of that advertising about high HP refers to optional engines that the
average consumer does not choose.

I don't think the required corporate average for passenger cars is "30
plus mpg" is it?

Merritt
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Old 07-12-2005, 12:01   #9 (permalink)
C. E. White
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Re: Drivers your mileage will vary


"Merritt Mullen" <mmullen8014@mchsi.com> wrote in message
news:mmullen8014-C996C8.22182611072005@netnews.asp.att.net...

> Not sure about this, but isn't that because only passenger cars (and not
> pickup trucks or SUVs) count towards the corporate fleet average? Also,
> some of that advertising about high HP refers to optional engines that the
> average consumer does not choose.


Pickups and SUVs under 8500 lb GCVW have a different requirement than cars,
but they still have CAFE requirements. Vehicles over 8500 lb GCVW are not
required to meet CAFE standards (H2's, Excursions, Suburban 2500s are above
8500 lb GCVW).

> I don't think the required corporate average for passenger cars is "30
> plus mpg" is it?


You are correct.

From http://www.nhtsa.dot.gov/cars/rules/cafe/overview.htm :

- From MY 1986 through 1989, the passenger car standards were lowered.
Thereafter, in MY 1990, the passenger car standard was amended to 27.5 mpg,
which it has remained at this level.
- On March 31, 2003, NHTSA issued new light truck standards, setting a
standard of 21.0 mpg for MY 2005, 21.6 mpg for MY 2006, and 22.2 mpg for MY
2007.

Ed


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Old 07-12-2005, 20:01   #10 (permalink)
Whitelightning
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Re: Drivers your mileage will vary


"hachiroku" <ae86@Trueno.GTS> wrote in message
news:pan.2005.07.12.04.07.32.751040@Trueno.GTS...
> On Mon, 11 Jul 2005 08:03:43 -0700, transport truck & bus wrote:
>> >

http://infotruck.blogspot.com/2005/0...will-vary.html
>
> He's right! I generally do much, much better! My 'hachiroku' was rated at
> 22 city/28 highway; I AVERAGED 33-36 combined. >
> All in how you drive, I guess. Although I am not known for ripping the
> tires off my cars, I also am not known as a slouch, either.
>
> So there...


sorry cant resist:

1. Hachiroku
translates to "86", used to describe rear wheel drive toyota corolla chassis
code AE86, popularized by the anime series "initial D", now used to describe
base and SR-5 models on Ebay in an attempt to sell a nearly worthless car as
a "hachiroku drifter"

Ricer1: man i scored this hachiroku on ebay for just $5000! and it almost
runs!
Ricer2: DAMN DAWG, you're gonna be the best drifter in

Big smiles now, big smiles

Whitelightning


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