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Old 03-13-2008, 06:55 PM   #1 (permalink)
30+ MPG ford ranger
 
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downshifting?

i'm new to the site, and would like to know if downshifting is either helping my fuel economy, or is it hurting it?

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Old 03-13-2008, 07:00 PM   #2 (permalink)
Depends on the Day
 
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Quote:
Originally Posted by FoMoCo_RANGER View Post
i'm new to the site, and would like to know if downshifting is either helping my fuel economy, or is it hurting it?
Welcome to the site...

It all depends on how far you need to go without using fuel. Many vehicles cut the fuel injectors during downshift, over a certain RPM.

The most efficient process is to coast in Neutral (with the engine off, if you're bold enough -- practice first )

There's a balance between the 2. Good mileage, BTW...

Best to ya...

RH77
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Old 03-13-2008, 07:03 PM   #3 (permalink)
30+ MPG ford ranger
 
FoMoCo_RANGER's Avatar
 
Join Date: Mar 2008
Location: oregon
Posts: 14

FoMoCo - '01 ford ranger XL
90 day: 26.38 mpg (US)

OXFORD - '06 ford ranger XL
90 day: 33.33 mpg (US)

babyblufasty - '73 Volkswageb type 3 FASTBACK
90 day: 20.31 mpg (US)

the minion - '13 dodge dart RALLYE
90 day: 37.11 mpg (US)
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thanks, my mission is 32MPG out of the ranger, and 30 for the vette, but that might be a lost cause because the vette is an auto... also how do you get the banner in your sig?
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Old 03-13-2008, 07:10 PM   #4 (permalink)
Depends on the Day
 
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Teggy - '98 Acura Integra LS
Sports Cars
90 day: 32.74 mpg (US)

IMA - '10 Honda Insight EX
Team Honda
90 day: 34.76 mpg (US)

Tessie - '06 Acura TSX Base
90 day: 28.2 mpg (US)
Thanks: 31
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Here's some info...

Banner Sig Thread.
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Old 03-13-2008, 07:14 PM   #5 (permalink)
30+ MPG ford ranger
 
FoMoCo_RANGER's Avatar
 
Join Date: Mar 2008
Location: oregon
Posts: 14

FoMoCo - '01 ford ranger XL
90 day: 26.38 mpg (US)

OXFORD - '06 ford ranger XL
90 day: 33.33 mpg (US)

babyblufasty - '73 Volkswageb type 3 FASTBACK
90 day: 20.31 mpg (US)

the minion - '13 dodge dart RALLYE
90 day: 37.11 mpg (US)
Thanks: 0
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yeah i saw it, i'm such a noob
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Old 03-13-2008, 08:27 PM   #6 (permalink)
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I can set up your FE banners if you don't figure it out.

As far as downshifting - I wouldn't worry about it too much as a fuel saving technique. Rick's right about fuel cutoff, but it's much less efficient than coasting in N with the engine idling. The only time I'd do it is down some long, steep grades to descend where you need to keep your speed in check.

Generally, the most efficient way to slow down, from best to worst:

- in neutral, engine off
- in neutral, engine on
- in gear, engine braking
- regular brake

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