eco mode

[bsantelli]

Can someone explain the eco mode on and eco mode off settings to me (I've read the manual, but not very helpful).

When would I turn eco mode on? when would I turn eco mode off? what are the disadvantages in having it on(I presume the advantage is fuel economy, but what am I sacrificing? a few hp? etc?)

Thank you

 

[Glashub]

Just lets you know when you're driving economically.

 

[bsantelli]

I am not talking about the little green eco indicator that goes on when you are driving economically and off when you are not -I get that but rather the OPTION to set ECO On or ECO OFF which then displays a big leaf with the words ON or OFF in the center cluster lcd screen. The salesman said something about setting it one way for highway and the other for city, or something like that, but at the time it was info overload and I didn't quite get it all.

 

[bsantelli]

Just lets you know when you're driving economically.

Okay, I re-read the owners manual. You are right - the ECO Driving MODE just determines if you want the eco indicator light in use. Seems like a waste of an on/off mode - why would anyone not want to have it on? the eco indicator light is very unobtrusive.
Of course, the reason I was confused, was because of what the salesmen told me. But in his defense, I understand in the new sonata, it actually does adjust the computer, throttle, etc.

here's the excerpt from manual:

The ECO indicator (green) will turn on
when you are driving fuel efficiently in
the ECO Driving ON mode.
If you don't want the indicator displayed,
you can turn the ECO Driving
ON mode to OFF mode by pressing the
DISP button (or the RESET button

 

[BacktoHyundaibychoice]

Hardly a waste of an on/off mode if you only have to do it once.
Glad I've never seen this nag.

 

[Ormond]

I assumed that this changed the throttle response.

 

[STREETS]

Is this a 2012 feature?

 

[bsantelli]

Hardly a waste of an on/off mode if you only have to do it once.
Glad I've never seen this nag.

Well I guess what bugs me about it is, it means I have to press display one extra time as I am cycling thru the different displays. If it truely is just turning off the use of the eco indicator, just don't see why that isn't always on. A nit, I know. The ability to turn it on or off though, just seems to imply it would do more (like adjust throttle, shift points, etc)

 

[bsantelli]

I assumed that this changed the throttle response.

that's what I was thinking too - but not if the 2012 owners manual is correct.

 

[mwposner]

"Active Eco changes the throttle map, which means that the throttle opens less (and a bit more gradually) for a given press of the gas pedal. Floor it and the throttle opens wide, but at part throttle, the car will take off gently and deliver better fuel economy.
It also lowers the shift points for the transmission, and cycles the A/C compressor on/off when A/C is in use" and "I read that what the eco mode does is "smooth" out the tiny mph variations caused by your gas pedal depression inconsistencies as you cruise along, (while not using cruise control), to keep a more consistent speed in each gear.
Keeping consistent mphs = improved gas economy, so that's what it's doing." These two quotes are from other Genesis Owner's forums

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[Brucealeg]

How does Eco work in the 2012? I have the V6 and even the dealer wasn't sure how to explain it / show it to me.

 

[Glashub]

"Active Eco changes the throttle map, which means that the throttle opens less (and a bit more gradually) for a given press of the gas pedal. Floor it and the throttle opens wide, but at part throttle, the car will take off gently and deliver better fuel economy.
It also lowers the shift points for the transmission, and cycles the A/C compressor on/off when A/C is in use" and "I read that what the eco mode does is "smooth" out the tiny mph variations caused by your gas pedal depression inconsistencies as you cruise along, (while not using cruise control), to keep a more consistent speed in each gear.
Keeping consistent mphs = improved gas economy, so that's what it's doing." These two quotes are from other Genesis Owner's forums

I'm curious, where did you get this information?

 

[mwposner]

I'm curious, where did you get this information?

First, I called the USA Hyundai Genesis experts...(800) 633-5151
...they are actually very pleasant, patient and knowledgeable. Then I broadened my search on this topic and found similar threads on other forums, then I called the Hyundai folks again who verified that the software's design is across their inventory of similarly equipped vehicles.

I've not noticed a MPG difference with or without Eco Mode. Following is my MPG data since I purchased the car. The only big difference is when the AC runs. I live in the coastal area of San Diego so the AC is needed infrequently.
Regards,
Michael

MPG notes

21 eco mode
22 eco mode
23 eco mode
24 eco mode
24 eco mode
24 eco mode
24 eco mode
24 eco mode
23 eco mode
23
24
22

 

[Glashub]

^^^^^

Good job. One would think they'd include that in the owners manual since it is such a value add for gas concious drivers. Oh well.

 

[Slowpoke]

When I read the owners manual and found out it has no operational difference other than turning on/off the eco light, I turned it off. I've found that looking out the windshield and planning ahead gets better gas mileage than looking for a light on the dashboard.

 

[Brucealeg]

Is ECO mode something we turn on or does the computer adjust for it all the time? I asked two sales types at my dealer and was told both. One said your hold the steering button till it comes on and another said it was always on and nothing needed to be done.

It's what prompted my earlier question. I'm getting 23.8 MPG so far in my new V6. It's better then my M45, more so since this car feels faster. However, I was hoping for a bit more and maybe it'll get there.

 

[mwposner]

The "DISP" button on the steering wheel toggles Eco mode when the leaf symbol is showing on the small DIS display. Press and hold the DISP button on the steering wheel for a full second to toggle the Eco setting. The only quirk in the Eco toggle and indicator is that the green Eco letters in the speedometer cluster gauge does not illuminate at all when the DIS is in the Instantaneous Fuel Consumption setting.

 

[GENNY429]

I was told by member EdP that it changes the shift points, and softens the gas pedal feel. I cannot attest to the pedal feel, but it definitely changed the shift points and the car, IMO, was way faster overall. I'm sure this is not good for mpg's but was a lot of fun. One thing I have noticed, however, for those of you hypermiling at times for mpg, is that there is a lot of tyranny braking in this car. Not Challenger R/T in sport mode whiplash (those who have driven one know what I mean) , but you can get this thing to increase your avg mpg by almost 1 whole mile by putting it in neutral on downhills.

 

[Mcc]

but you can get this thing to increase your avg mpg by almost 1 whole mile by putting it in neutral on downhills.

I wouldn’t recommend coasting in neutral downhill. In many states it is illegal. Then there is the safety issue of placing extra load on the brakes with the possibility of over heating. Also potentially loss of control.

In addition, if you stay in gear and let off the gas pedal while the engine speed is above idle, as would typically be the case on a long downhill, the engine will cut off fuel to combustion chambers so that you are using no gas. Because you are in gear, the wheels will keep turning the engine so that it doesn’t stall.

If you are in neutral, the wheels will not turn the engine, so the engine has to send fuel to the combustion chambers to maintain idle RPM so that the engine doesn’t stall.

Lots of articles discouraging the use of this technique.

 

[GENNY429]

I'm not talking about coming off a summit and burning the brakes. Just a 1/4 mile or so of highway driving, where you don't need to hit the brakes to maintain current speed, and you're not stopping at the end. You just put it back in drive and continue on. I have NEVER heard of this being illegal and I have lived in a bunch of states. Also, how would they know? Lastly, why does my Current MPG Guage show 50 in neutral and less than 25 when coasting downhill in gear, as the transmission keeps up shifting and keeping over 2000rpm's and SLOWING ME DOWN. I do have a question though, cause I've never heard this before, but wouldn't "cutting off the fuel to the cylinders" stall the engine? Even if the wheels are turning it, combustion has to be happening in order for it to still be running when you put your foot on the gas again to speed up?