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Old 11-06-2012, 09:32 AM   #1 (permalink)
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Default ECO Button Off??

So have had the SF for 3 months now and almost 3000 miles. I have been running with the ECO button on the whole time. I have constantly got 24 mpg (dash) / 22 mpg (manually calculated) the whole time with 100% city driving. Got gas yesterday and decided to try a tank full without the ECO button on. I immediately noticed that it drove better, so much better it really felt like a different car. Engine was smoother and the transmission shifted better. Then I noticed the dash mpg were about 2 mpg better than normal, showing 26 mpg. I will run this tank to see if the mpg stay higher but I sure do like the way it drives so much better.

How can this be? Could our mpg problems be because whatever the ECO button does it is doing it incorrectly?

Anyone else try with the ECO button off for an extended period of time?
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Old 11-06-2012, 09:59 AM   #2 (permalink)
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I tried the eco button briefly a few times and did not like the way it drove. "sluggish" Without eco it drives so much better.
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Old 11-06-2012, 10:09 AM   #3 (permalink)
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Quote:
Originally Posted by ncbeast View Post
So have had the SF for 3 months now and almost 3000 miles. I have been running with the ECO button on the whole time. I have constantly got 24 mpg (dash) / 22 mpg (manually calculated) the whole time with 100% city driving. Got gas yesterday and decided to try a tank full without the ECO button on. I immediately noticed that it drove better, so much better it really felt like a different car. Engine was smoother and the transmission shifted better. Then I noticed the dash mpg were about 2 mpg better than normal, showing 26 mpg. I will run this tank to see if the mpg stay higher but I sure do like the way it drives so much better.

How can this be? Could our mpg problems be because whatever the ECO button does it is doing it incorrectly?

Anyone else try with the ECO button off for an extended period of time?
I've tried ECO off for a few trips and got better gas mileage. I have been running city this tank with it off. I am hoping its better in the calculated mpg when I fill up. Another trip this coming weekend and I plan on turning it off for that one too. Does appear to drive a little better too.
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Old 11-06-2012, 10:19 AM   #4 (permalink)
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The ECO button may be more effective on turbo models - it certainly is on my 2011 turbo-diesel as it reduces the number of gearchanges considerably and gets the turbo-boost to do the work during acceleration rather than changing gear into the power band.
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Old 11-06-2012, 11:45 AM   #5 (permalink)
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I would guess that the ECO mode could help in highway a lot more than in city driving.
Please do post both your calculated an displayed numbers for highway trips.
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Old 11-06-2012, 11:48 AM   #6 (permalink)
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Quote:
Originally Posted by angelo View Post
I would guess that the ECO mode could help in highway a lot more than in city driving.
Please do post both your calculated an displayed numbers for highway trips.
+1 eaxctly what I was thinking, it might actually be hurting me since I do no hwy miles.
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Old 11-06-2012, 12:49 PM   #7 (permalink)
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The best mileage I have gotten on my 2.0 Turbo AWD is 28 with ECO, but that was mostly coming down the mountains in Colorado and about 35 mins of flat road driving. Driving around the next day in the city it was down to 23.
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Old 11-06-2012, 12:56 PM   #8 (permalink)
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Never liked the Eco mode and don't use it.
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Old 11-06-2012, 01:01 PM   #9 (permalink)
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Quote:
Originally Posted by prmax View Post
Never liked the Eco mode and don't use it.
thanks for the informative post...

could you expand on that? is there a reason you don't like it? would help people looking to buy, like myself, to have a better idea of the vehicle.
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Old 11-06-2012, 08:57 PM   #10 (permalink)
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Quote:
Originally Posted by CarpeDM View Post
thanks for the informative post...

could you expand on that? is there a reason you don't like it? would help people looking to buy, like myself, to have a better idea of the vehicle.
bump
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