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Old 07-22-2014, 07:36 AM
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Eco Button Impact on Performance?

I am currently in the market for a new vehicle and had the EcoDiesel JGC as #1 on my list until I drove it yesterday for the first time.

As a comparison I drove the VW Touareg TDI over the weekend and it's engine and transmission were buttery smooth and when getting onto the highway you could feel the torque and it would push you in the seat a little.

Yesterday in the JGC SFU there wasn't that same feeling. Felt very lethargic and wasn't very smooth with shifts. When getting back to the dealership my dealer who rode with me the whole time points out that he never drives the truck with the "Eco Button" on as it seems to make the vehicle less responsive.

Is this true? Does the "Eco Button" make an impact on performance?

I searched and found some mileage comparisons around the Eco Button but no one saying it truly changed the engine performance feeling of the vehicle. Any insights would be appreciated as I was a little let down.
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Old 07-22-2014, 08:34 AM
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Re: Eco Button Impact on Performance?

in a word, yes.
Sport holds gears longer, will let the diesel rev and pull. You'll feel that torque.

I find the ECO mode 'short shifts' the truck. I guess this is better for MPG, but I don't want my diesel lugging around, so I'm trying to get in the habit of placing the transmission in Sport mode at all times.
....wish that was a setting option in the "Infotainment" screen.
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Old 07-22-2014, 08:36 AM
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Re: Eco Button Impact on Performance?

At first I used to turn ECO off, but after learning to apply the throttle a little differently, I no longer bother. If I feel the need to be snappier for some reason, then I just shift it into sport mode, which turns ECO off.
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Old 07-22-2014, 08:40 AM
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Re: Eco Button Impact on Performance?

Yea, I didn't get a chance to try it in Sport mode. Does make sense that they at least turn off "Eco Mode" when in Sport. My current LR4 does something similar.

It sounds like I am just going to have to go back over and try it out again.
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Old 07-22-2014, 08:53 AM
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Re: Eco Button Impact on Performance?

Putting it into Sport turns ECO off, it is just knocking the shifter back once more when in drive turns on Sport mode.
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Old 07-22-2014, 08:55 AM
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Re: Eco Button Impact on Performance?

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Originally Posted by SNUKE View Post
Putting it into Sport turns ECO off, it is just knocking the shifter back once more when in drive turns on Sport mode.
Yea, I got the shifter there one time but only while playing at a light and didn't leave it there. Would have hated to have scared the sales rep!
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Old 07-22-2014, 08:58 AM
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Re: Eco Button Impact on Performance?

I'm sure the sales rep has driven with some lead foots in the SRT. Punch It! -He'll be ok
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Old 07-22-2014, 09:12 AM
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Re: Eco Button Impact on Performance?

The only thing that I really dislike about Eco mode is the way the engine reacts when you need to hold the Jeep to lower speeds. When I leave my house I have a good amount of enforced 25mph. The tranny will get into 5th gear and the engine starts lugging.

I sometimes forget to turn it off when I leave a store or something. I never notice it until I get into my development, slow down, and after a few hundred yards the lugging starts.

I really wish that the default settings for everything when you start the Jeep would be whatever it was when you shut it down.


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Old 07-22-2014, 09:20 AM
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Re: Eco Button Impact on Performance?

I considered the Toureg but then it cost $10k more MSRP (similar price to X35d and ML350 Bluetec) than the EcoDiesel I could not think that I'd ever find it was worth the significant price increase (I'm also not one to fawn over brand names and pick my vehicles based on ability).

That said - my previous 2007 CRD Jeep had a lot more get up and go but it had a 5 speed auto shared with the then generation SRT8 which then put highway cruising doing 70 mph at 2,700 RPM which was way too high (short sighted ratios).

But I didn't buy the diesel for 0-60 prowess but instead wanted the economy of the 900 mile per tank range and effortless towing through the mountains yet still return excellent mpg.
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Old 07-22-2014, 09:36 AM
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Re: Eco Button Impact on Performance?

Quote:
Originally Posted by bill_de View Post
I really wish that the default settings for everything when you start the Jeep would be whatever it was when you shut it down.
I wish the same about the wife.
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Old 07-22-2014, 09:41 AM
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Re: Eco Button Impact on Performance?

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Originally Posted by jaje View Post

That said - my previous 2007 CRD Jeep had a lot more get up and go but it had a 5 speed auto shared with the then generation SRT8 which then put highway cruising doing 70 mph at 2,700 RPM which was way too high (short sighted ratios).

Your CRD also had 3.73 gears v/s whatever pitiful excuse these EcoDiesels have. Great highway mileage


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Old 07-22-2014, 09:46 AM
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Re: Eco Button Impact on Performance?

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Originally Posted by jaje View Post
I considered the Toureg but then it cost $10k more MSRP (similar price to X35d and ML350 Bluetec) than the EcoDiesel I could not think that I'd ever find it was worth the significant price increase (I'm also not one to fawn over brand names and pick my vehicles based on ability).

But I didn't buy the diesel for 0-60 prowess but instead wanted the economy of the 900 mile per tank range and effortless towing through the mountains yet still return excellent mpg.
This is how I am feeling about a majority of the other vehicles in the market that come with the Diesel engines. They cost significantly more and come with less options than the JGC does (2 Speed Trans Case is a must for me). My father has had the V6 Gasser JGC for over 2 years with no troubles. I have had 2 JKU's with no troubles. Plus I drive 30K miles a year.

With driving 30K miles a year, I too don't worry about 0-60 but I do care about power to get on the highway, lane changing and passing abilities. That's where I felt the JGC was weaker than the Touareg. You all are making me think I just need to go back and turn the ECO mode off and try it again.
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