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Guest Message by DevFuse

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Ford ups mpg for 2017 C-max and Fusion


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6 replies to this topic

#1 OFFLINE   djc

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Posted 03 December 2016 - 07:24 PM

The Fusion numbers are up at the EPA:

        cmb   city / hwy

2016  41  (43 / 39)
2017  42  (43 / 41)

 

The 2017 C-max numbers aren't up yet but but Yahoo sports article says:

 

"Despite the fact that the C-Max continues to rely on the same 2.0-liter four-cylinder engine and an electric motor that’s fed by a 1.4-kWh battery pack, Ford predicts the 188-hp hybrid will see fuel economy rise from 41 mpg city and 36 mpg highway to 42/38 mpg."

http://sports.yahoo....3200690.html   )

 

SO: what changes did Ford make to improve rated fuel efficiency?  Can retro-fit?  Any Tradeoffs?


Edited by djc, 03 December 2016 - 07:25 PM.

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#2 OFFLINE   raadsel

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Posted 03 December 2016 - 07:49 PM

I don't believe Ford made any real changes between the 2016 and 2017 C-Max to improve fuel economy. I believe the only difference for the C-Max is that the EPA changed their test procedure. While most cars are getting lower fuel economy numbers, a few (such as the C-Max) are testing better. I believe, in the C-Max's case, it may test slightly better using the new procedure combined with Ford being overly cautious with the EPA numbers after downgrading the C-Max's fuel economy twice (from the initial 47/47/47) when it came out in 2013.
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#3 OFFLINE   joshg678

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Posted 04 December 2016 - 11:48 AM

For 2017 they made the electric motors more efficient by making them lighter I believe is what I read.

#4 OFFLINE   ptjones

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Posted 04 December 2016 - 03:29 PM

The Fuelly average is 40 mpg, but it is hard to figure out the percentage of HWY vs City.  IMO anyone that drives a CMAX like a Hybrid should get 41 HWY and 47 City and from my experience the Cmax gets better City by 1 mpg than FFH. FFH gets one better HWY by 1 mpg. :) 

 

Paul 


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#5 OFFLINE   joshg678

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Posted 04 December 2016 - 08:27 PM

The Fuelly average is 40 mpg, but it is hard to figure out the percentage of HWY vs City. IMO anyone that drives a CMAX like a Hybrid should get 41 HWY and 47 City and from my experience the Cmax gets better City by 1 mpg than FFH. FFH gets one better HWY by 1 mpg. :)

Paul

So far I've been steady 44.2-44.5 in my daily mixed. Took it to my work party last night and got 45 overall. That was at 65 most of the way.
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#6 OFFLINE   Plus 3 Golfer

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Posted 05 December 2016 - 06:06 PM

I don't believe Ford made any real changes between the 2016 and 2017 C-Max to improve fuel economy. I believe the only difference for the C-Max is that the EPA changed their test procedure. While most cars are getting lower fuel economy numbers, a few (such as the C-Max) are testing better. I believe, in the C-Max's case, it may test slightly better using the new procedure combined with Ford being overly cautious with the EPA numbers after downgrading the C-Max's fuel economy twice (from the initial 47/47/47) when it came out in 2013.

Sounds correct.

 

Seems to me I recall reading that the "coast down" methodology to determine the road load coefficients which are used to setup the dynamometer was changed from a coast down speed of 70 mph to maybe 50? mph. I'll see if I can find EPA changes in the quidelines and why.  This change might increase / decrease the relationship of the road load coefficients associated with the road load components.  

 

But EPA has adjusted FE of prior years models also as shown in djc first post.  I doubt the manufacturers re-tested prior year models.  So, I question whether one can determine if 2017 models that were actually tested are really more / less efficient than prior models absent retesting all prior year models.  The 2017 Fusion Hybrid was tested.  AFAIK, there is no requirement for manufacturers to test the same model every year like the C-Max.  

 

Remember these EPA numbers are to be used for comparison of vehicles among makes and models. I wouldn't bet the house that a 2017 FFH gets better highway FE than a 2016 FFH all other things being equal. :)  But, it is a feather in Ford's hat that the EPA Hwy rating of the FFH has increased. 

 

 

I wouldn't bet the house that a 2017 FFH gets better highway FE than a 2016 FFH all other things being equal. :)



#7 OFFLINE   ptjones

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Posted 05 December 2016 - 07:02 PM

I also agree with Plus 3 Golfer, besides trying to come up a Hybrid FE rating is extremely variable because of driving style, 32 to 55 mpg. :shift:  :shrug: 

 

Paul 








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