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Fuel Economy & Emissions Talk about the mileage database, EPA, hypermiling, gas and driving strategy. 

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  #1 (permalink)  
Old 09-07-2007, 09:11 AM
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bwilson4web bwilson4web is offline
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Thumbs up Cummin's MPG paper

Hi,

While looking for something else, I came across this interesting paper:

http://www.everytime.cummins.com/eve...Whitepaper.pdf

Long haul truckers have a similar interest in fuel efficiency and though there are some differences, many of their techniques apply to what we try to accomplish. For example, cresting a hill at the minimum possible speed and letting gravity handle the subsequent acceleration.

Bob Wilson

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Old 09-11-2007, 02:11 PM
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FastMover FastMover is offline
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Cool Re: Cummin's MPG paper

Yep, a lot in common. Low Rolling Resistance tires, tire inflation, streamlining (keep that hybrid clean), fuel and lubricaton choices, lubrication levels, systems management (A/C instead of air in our case), long range anticipation of stops, grades and speed changes, constant RPM operation in cruise, use of small grades.

Gosh, I now know how to talk to a trucker -- can't wait for the next "choke and puke" stop in the Interstate.

.


It is the ignorant among us that will eventually destroy us all.
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Old 09-14-2007, 10:50 AM
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Qslugs Qslugs is offline
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Default Re: Cummin's MPG paper

Dont forget the go go juice.
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Old 09-19-2007, 09:10 AM
tekn0wledg tekn0wledg is offline
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Default Re: Cummin's MPG paper

Thanks for posting, that was an interesting read.

I was most surprised by the results of blacktop versus concrete. Obviously polished concrete is the way to go, but I would've thought fresh blacktop would be fairly smooth. Guess not

.



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Old 10-24-2007, 10:58 PM
kerpal kerpal is offline
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Default Re: Cummin's MPG paper

Quote:
Originally Posted by Qslugs View Post
Dont forget the go go juice.
Wat gogo juice?
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Old 10-25-2007, 09:06 AM
Harold Harold is offline
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Default Re: Cummin's MPG paper

Haven't you noticed the trucks wheels sinking into that nice smooth black-top on a hot day! H
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Old 01-09-2008, 07:44 AM
MiaTurbo MiaTurbo is offline
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Default Re: Cummin's MPG paper

interesting read. I guess when you only get 6mpg, every little change helps.

.

-Fadi

1991 Mazda Miata to beat Corvettes at the track
1999 Dodge Ram to climb through rocks and brush
2004 Honda Civic Hybrid to make up for the other 2
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Old 01-09-2008, 10:16 AM
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Default Re: Cummin's MPG paper

I think that is a great article.
I think if you look at everything as a % most tips will apply.

I liked the part of for each 10'F lower temperature, wind resistance increases by 2%. Me at 0'F is 14% more wind resistance than someone in say, Jupiter Florida with 70'F. That's not counting the fact that the oil is colder, engine is colder, batteries are colder, winter fuel.... etc....
I also liked the fact the bald tires get better MPG than new ones!
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Old 01-10-2008, 06:23 AM
fernando_g fernando_g is offline
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Default Re: Cummin's MPG paper

I wonder what kind of mileage, the crooks in those police chase videos get. Doing 85+ miles per hour with four flat tires after running thru spikes, and the muffler scrapping against the pavement....

.

The U.S. has reached a point “where the priorities of Congress could become so distorted by politics” that it would turn its back on the next great global industry, clean power — Rhone Resch
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Old 02-10-2008, 08:50 AM
ChicagoHCHII ChicagoHCHII is offline
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Default Re: Cummin's MPG paper

Quote:
Originally Posted by tekn0wledg View Post
Thanks for posting, that was an interesting read.

I was most surprised by the results of blacktop versus concrete. Obviously polished concrete is the way to go, but I would've thought fresh blacktop would be fairly smooth. Guess not
I noticed lower MPG on blacktop too. I always thought that rather weird as it seems concrete has better traction for stopping and better mpg. I'm not a fan of blacktop at all. Its only advantage seems to be its better in the rain.
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