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Automatic vs. Manual transmission



 
 
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  #1  
Old April 12th 11, 01:45 AM posted to rec.autos.tech
SBH
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Posts: 2
Default Automatic vs. Manual transmission

It's been well known a manual transmission obtains better fuel mileage than
an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
manual, mainly for the fuel savings. The sales guy indicated the new
transmissions (more so the 6 speed auto in the Fiesta) are better and more
fuel efficient than manuals. Anyone know if this is true?


  #2  
Old April 12th 11, 01:54 AM posted to rec.autos.tech
Steve W.[_6_]
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Posts: 1,161
Default Automatic vs. Manual transmission

SBH wrote:
> It's been well known a manual transmission obtains better fuel mileage than
> an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
> manual, mainly for the fuel savings. The sales guy indicated the new
> transmissions (more so the 6 speed auto in the Fiesta) are better and more
> fuel efficient than manuals. Anyone know if this is true?
>
>


Yep, The computer know how to shift the trans for economy better than
you do. The only reason that older autos were worse than a stick was due
to the slippage of the converter and the lack of close gearing. New
trans have lock up, better gearing, better overall gear ratios and the
computer controls make them work much better than a stick.

--
Steve W.
  #3  
Old April 12th 11, 02:23 AM posted to rec.autos.tech
Brent[_4_]
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Posts: 4,430
Default Automatic vs. Manual transmission

On 2011-04-12, Steve W. > wrote:
> SBH wrote:
>> It's been well known a manual transmission obtains better fuel mileage than
>> an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
>> manual, mainly for the fuel savings. The sales guy indicated the new
>> transmissions (more so the 6 speed auto in the Fiesta) are better and more
>> fuel efficient than manuals. Anyone know if this is true?
>>
>>

>
> Yep, The computer know how to shift the trans for economy better than
> you do. The only reason that older autos were worse than a stick was due
> to the slippage of the converter and the lack of close gearing. New
> trans have lock up, better gearing, better overall gear ratios and the
> computer controls make them work much better than a stick.


But for small cars with small engines an MT will probably still be more
responsive than an AT programmed for fuel economy.


  #4  
Old April 12th 11, 02:36 AM posted to rec.autos.tech
jim beam[_4_]
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Posts: 3,204
Default Automatic vs. Manual transmission

On 04/11/2011 06:23 PM, Brent wrote:
> On 2011-04-12, Steve > wrote:
>> SBH wrote:
>>> It's been well known a manual transmission obtains better fuel mileage than
>>> an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
>>> manual, mainly for the fuel savings. The sales guy indicated the new
>>> transmissions (more so the 6 speed auto in the Fiesta) are better and more
>>> fuel efficient than manuals. Anyone know if this is true?
>>>
>>>

>>
>> Yep, The computer know how to shift the trans for economy better than
>> you do. The only reason that older autos were worse than a stick was due
>> to the slippage of the converter and the lack of close gearing. New
>> trans have lock up, better gearing, better overall gear ratios and the
>> computer controls make them work much better than a stick.

>
> But for small cars with small engines an MT will probably still be more
> responsive than an AT programmed for fuel economy.


"probably"?


--
nomina rutrum rutrum
  #5  
Old April 12th 11, 03:47 AM posted to rec.autos.tech
Brent[_4_]
external usenet poster
 
Posts: 4,430
Default Automatic vs. Manual transmission

On 2011-04-12, jim beam > wrote:
> On 04/11/2011 06:23 PM, Brent wrote:
>> On 2011-04-12, Steve > wrote:
>>> SBH wrote:
>>>> It's been well known a manual transmission obtains better fuel mileage than
>>>> an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
>>>> manual, mainly for the fuel savings. The sales guy indicated the new
>>>> transmissions (more so the 6 speed auto in the Fiesta) are better and more
>>>> fuel efficient than manuals. Anyone know if this is true?
>>>>
>>>>
>>>
>>> Yep, The computer know how to shift the trans for economy better than
>>> you do. The only reason that older autos were worse than a stick was due
>>> to the slippage of the converter and the lack of close gearing. New
>>> trans have lock up, better gearing, better overall gear ratios and the
>>> computer controls make them work much better than a stick.

>>
>> But for small cars with small engines an MT will probably still be more
>> responsive than an AT programmed for fuel economy.

>
> "probably"?


What you don't have a smart ass response about some special drag racing
automatic?


  #6  
Old April 12th 11, 02:00 AM posted to rec.autos.tech
jim beam[_4_]
external usenet poster
 
Posts: 3,204
Default Automatic vs. Manual transmission

On 04/11/2011 05:45 PM, SBH wrote:
> It's been well known a manual transmission obtains better fuel mileage than
> an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
> manual, mainly for the fuel savings. The sales guy indicated the new
> transmissions (more so the 6 speed auto in the Fiesta) are better and more
> fuel efficient than manuals. Anyone know if this is true?


lots of people know the answer to this. you could too if you could be
bothered to look up the numbers on the manufacturer's website.

you'd be better off asking the question "why" - if you don't want a
"rtfm" answer.


--
nomina rutrum rutrum
  #7  
Old April 12th 11, 11:45 AM posted to rec.autos.tech
SBH
external usenet poster
 
Posts: 2
Default Automatic vs. Manual transmission


"jim beam" > wrote in message
t...
> On 04/11/2011 05:45 PM, SBH wrote:
>> It's been well known a manual transmission obtains better fuel mileage
>> than
>> an automatic. My sister is preparing to purchase a Ford Fiesta and wants
>> a
>> manual, mainly for the fuel savings. The sales guy indicated the new
>> transmissions (more so the 6 speed auto in the Fiesta) are better and
>> more
>> fuel efficient than manuals. Anyone know if this is true?

>
> lots of people know the answer to this. you could too if you could be
> bothered to look up the numbers on the manufacturer's website.
>
> you'd be better off asking the question "why" - if you don't want a "rtfm"
> answer.
>

Silly me, why didn't I think of that....? Oh wait, I did, but that doesn't
erase my skepticism about manufacture mileage posting. It's similar to the
little guy enhancing the size of his johnson because it really isn't.
Therefore, I thought I'd bother myself twice and ask in here as well. You
know what they say about assumptions.


  #8  
Old April 12th 11, 04:58 PM posted to rec.autos.tech
[email protected]
external usenet poster
 
Posts: 35
Default Automatic vs. Manual transmission

On Apr 11, 6:00*pm, jim beam > wrote:
> On 04/11/2011 05:45 PM, SBH wrote:
>
> > It's been well known a manual transmission obtains better fuel mileage than
> > an automatic. My sister is preparing to purchase a Ford Fiesta and wants a
> > manual, mainly for the fuel savings. The sales guy indicated the new
> > transmissions (more so the 6 speed auto in the Fiesta) are better and more
> > fuel efficient than manuals. Anyone know if this is true?

>
> lots of people know the answer to this. *you could too if you could be
> bothered to look up the numbers on the manufacturer's website.
>
> you'd be better off asking the question "why" - if you don't want a
> "rtfm" answer.
>
> --
> nomina rutrum rutrum


Who knows if the manufacturers are telling the truth about the fuel
savings. I haven't met one person that gets the mileage that was
posted on the sticker from the factory. Believe them if you want.
  #9  
Old April 12th 11, 02:33 AM posted to rec.autos.tech
hls
external usenet poster
 
Posts: 2,139
Default Automatic vs. Manual transmission


"SBH" > wrote in message
...
> It's been well known a manual transmission obtains better fuel mileage
> than an automatic. My sister is preparing to purchase a Ford Fiesta and
> wants a manual, mainly for the fuel savings. The sales guy indicated the
> new transmissions (more so the 6 speed auto in the Fiesta) are better and
> more fuel efficient than manuals. Anyone know if this is true?


In many cases, the automatic is at least as economical as, or sometimes
better than, the manual. The difference is not worth the worry. And
dats the truff, babe ruff.

  #10  
Old April 12th 11, 12:25 PM posted to rec.autos.tech
Mr.E
external usenet poster
 
Posts: 12
Default Automatic vs. Manual transmission

On Mon, 11 Apr 2011 20:33:09 -0500, "hls" > wrote:

>
>"SBH" > wrote in message
.. .
>> It's been well known a manual transmission obtains better fuel mileage
>> than an automatic. My sister is preparing to purchase a Ford Fiesta and
>> wants a manual, mainly for the fuel savings. The sales guy indicated the
>> new transmissions (more so the 6 speed auto in the Fiesta) are better and
>> more fuel efficient than manuals. Anyone know if this is true?

>
>In many cases, the automatic is at least as economical as, or sometimes
>better than, the manual. The difference is not worth the worry. And
>dats the truff, babe ruff.

The new Ford 6 speed auto has no torque converter. It uses a computer
applied clutch to start and shifts between two clutch driven gear
trains that change the ratios- one for odd, one for even gears.
I wonder how the clutch life will be.
--
Mr.E
 




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