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Old 05-21-2012, 10:30 PM   #11 (permalink)
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Just imagine if you go from 10mpg to 60mpg... !!!

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Old 05-21-2012, 10:32 PM   #12 (permalink)
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Quote:
Originally Posted by Kodak View Post
In truth, and they articulated this in the video, mpg is a poor measurement of FE, for the simple fact that it isn't linear.
Did they propose a better measure?
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Old 05-21-2012, 11:04 PM   #13 (permalink)
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Quote:
Originally Posted by NachtRitter View Post
Did they propose a better measure?
Turn it upside down. Gallons per mile. Make it gallons per 100 miles so you get a more useful number. That's the way (metrically, of course), the Europeans do it. Of course, if Americans did anything the Yurpeein' way, we'd turn into a goldang bunch of socialists or queers or sumthin.

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Old 05-21-2012, 11:09 PM   #14 (permalink)
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Perhaps people who know this choose not to emphasis it because it might encourage Joe Public to buy a 10mpg SUV and drive it slightly more modest to get 12mpg on the grounds that they are "saving" lots of gas that way.

Ecomodder may be focused on getting more mpg out an existing vehicle, but driving a car that gets 30mpg stock and then getting EPA estimate saves more gas than driving a car that gets 10mpg stock and then hypermiling it all the way up to 20mpg
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Quote:
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A few months ago I returned home just as my neighbor pulled into his driveway. It was cold (around freezing) with some rain and sleet, and he yells to me: You rode your bike? In this weather?!?

So the other day we both returned home at the same time again, only now the weather is warm, sunny, with no wind. And I yell to him: You took the car? In this weather?!?
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Old 05-22-2012, 12:06 AM   #15 (permalink)
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Quote:
Originally Posted by briank View Post
So I got my spreadsheet out and low and behold it works out that Vehicle A going from 10 mpg to 12 mpg at X miles/year will give the same reduction in number of gallons/year as Vehicle B going from 30 mpg to 60 mpg, when both vehicles travel the same number of miles.
Demonstrating only that you've completely missed the point - which is that a vehicle that gets 12 mpg burns one gallon of gas to travel 12 miles, while one that gets 60 mpg travels 60 miles on a gallon. Duh!
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Old 05-22-2012, 01:00 AM   #16 (permalink)
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. . . you've completely missed the point . . . Duh!
THE point? Maybe there's more than one point to be seen? Could YOU even possibly be missing one?
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Old 05-22-2012, 02:00 AM   #17 (permalink)
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It truly shows how terrible a vehicle with 10 mpg economy is.
A measly 2 mpg gain for the road pig and a bright 30 mpg gain for the econo box.
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Old 05-22-2012, 03:43 AM   #18 (permalink)
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It's fun to get high numbers in the percentage race, but you have to remember what those numbers really mean, in the real world.

Both my cars, Baa and Zed, are running about 31% above EPA.

Driving Baa to work costs around $9.30 a day.

Driving Zed to work costs around $15.75 a day.


Driving Baa will save me around $1548 a year.
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Old 05-22-2012, 05:55 AM   #19 (permalink)
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While the statement is true... it only matters in terms of reducing OEM's efficiencies. A 2 mpg gain for stock trucks versus direct competitors and the previous year model is a pretty darn good thing.

But if you measure it in terms of gallons per 100 passenger miles... if you're using a 12 mpg car to deliver one person to their destination versus using a 30 mpg car to deliver one person to their destination, you're using five gallons more per passenger.
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Old 05-22-2012, 07:09 AM   #20 (permalink)
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Quote:
Originally Posted by NachtRitter View Post
Did they propose a better measure?
Aye, tortoise nailed it. Gallons per X miles (with x being something easy and divisible by 10, like 1,000)

Check out the video:

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