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Old 02-18-2015, 10:30 AM
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Question Eco Mode questions + couple others

Need some explanation here from you experienced owners. I have a new 2015 Ecodiesel.
item 1: My manual says ECO mode is enabled and my amber light will go on at start up. Well it doesn't. When I start it, it seems to be in normal mode and I can selected ECO mode and then light goes on. I Seem to like that option better, which allows me to decide to put it in Eco mode.
Did they change that for 2015 but didn't update the manual?

Item 2: When do you all use eco mode? Would it be good when the wife is driving around town and when we are cruising on the freeway to get better MPH? Has anyone got any better MPH using Eco mode?

Item 3: A little off subject. I will be towing a 2500LB trailer eventually. Do I use Normal mode as long as it's not searching for gears, and if it is use the paddle shifters to find the right gear?

Item 4:When do use Sport Mode?

Sorry for all the questions but it would be helpful to me to hear from you and your experience in the real world with these vehicles.
Thank You: Mike

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Old 02-18-2015, 11:20 AM
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Re: Eco Mode questions + couple others

Quote:
Originally Posted by mbaessler View Post
Need some explanation here from you experienced owners. I have a new 2015 Ecodiesel.
item 1: My manual says ECO mode is enabled and my amber light will go on at start up. Well it doesn't. When I start it, it seems to be in normal mode and I can selected ECO mode and then light goes on. I Seem to like that option better, which allows me to decide to put it in Eco mode.
Did they change that for 2015 but didn't update the manual?

Item 2: When do you all use eco mode? Would it be good when the wife is driving around town and when we are cruising on the freeway to get better MPH? Has anyone got any better MPH using Eco mode?

Item 3: A little off subject. I will be towing a 2500LB trailer eventually. Do I use Normal mode as long as it's not searching for gears, and if it is use the paddle shifters to find the right gear?

Item 4:When do use Sport Mode?

Sorry for all the questions but it would be helpful to me to hear from you and your experience in the real world with these vehicles.
Thank You: Mike
1) I heard the 2015s did have a way to change the default upon start up. you are lucky.
2) ECO mode is better if you are taking it easy around town. highway should mostly be stuck in 8th so it really shouldn't help much on the highway. all ECO does is change the shifting patterns so once your in 8th there's no way to save fuel. I do notice that sport more holds 7th a lot longer before shifting into 8th, i'm not sure the exact speed.
3) open for opinion. I believe the vehicle is capable of towing fine in any mode, but I usually use sport. the paddle shifters are great for going up/down hills. you should look into the threads on here about the engine temps rapidly increasing on steep inclines. using the paddles can find a better RPM to keep it cooler.
4) sport mode is way smoother and more fun for acceleration. if you're just taking it easy around town, it doesn't really matter. like I said, it holds 7th longer, so if your cruising around 60, you might not want it in sport.
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Old 02-18-2015, 11:57 AM
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Re: Eco Mode questions + couple others

Tim013: That was really helpful. Thanks for taking the time to answer! Mike
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Old 02-18-2015, 11:41 PM
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Re: Eco Mode questions + couple others

On my old Tahoe, there was a button on the tip of the column shifter for tow mode. The change seemed to be similar to the changes that the Jeep does when sport mode is engaged, so I would think that would be good for towing. I don't intend to tow anything more than a U-Haul at this stage of my life (my daughter now has the Tahoe, the horse trailer and the horse, thank God), so I don't have any real life experience, just speculation.
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Old 02-19-2015, 08:19 AM
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Re: Eco Mode questions + couple others

Towing a 2500 lb trailer won't be that big of a deal. Give Eco a try, then Eco off, then Sport to see how you like it. I assume you won't have trailer brakes so turning Eco off or putting on Sport will help you slow down more (especially down steep grades or if you have frequent stopping).

I've 2014 and it always starts in Eco mode. When I tow my enclosed trailer (~ 6k lbs) I always put it in sport mode as I live in a mountainous area and I need the engine braking effect when going downhill and when going up steep inclines it can hold 7th longer or won't need to downshift into 6th (where as if I used Eco it would lug then down 2 downshifts to 6th). You'll be really impressed though with the MPG from the diesel when towing. It simply doesn't effect the engine as much as it does the gas models. Towing in Sport I still get a very good 16-18 mpg towing doing 65 mph through the mountains which is significantly better than the Hemi or v6 can do. Plus don't have the stress of an engine sitting at 4-5k RPM slugging up a hill when I'm at a nice peaceful 2,500 RPM instead. Plus fuel savings and range is simply unbeatable in a vehicle this size, luxury and price. As I've got 8 long tows this year I'll break even with the Hemi and I'd expect next year with the v6 from fuel savings alone. Then when I have to sell I know it will command 2-3k more than a comparably equipped Hemi and 4-6k more than the v6. I had a WK CRD and when I sold mine via private sale I got 17k for it with 120k on the odometer (buyer shipped it from KS to CA sight unseen with no haggling). At that time when I was pricing similar Hemis were listed for private sale for 12-14k and v6s for 9-11k and there was haggle room. I did however have a GDE Eco tune and a DPF delete pipe but those only cost $1k total.
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Old 02-19-2015, 08:45 AM
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Quote:
Originally Posted by schmieg View Post
On my old Tahoe, there was a button on the tip of the column shifter for tow mode. The change seemed to be similar to the changes that the Jeep does when sport mode is engaged, so I would think that would be good for towing.
It's been confirmed that Sport mode reduces engine temps during towing due to the higher RPM. That may not be necessary, but those interested can search the forum to read more.

Quote:
Originally Posted by jaje View Post
buyer shipped it from KS to CA sight unseen with no haggling [...] I did however have a GDE Eco tune and a DPF delete pipe
Nice, DPF/SCR delete & tune is on my list after the warranty/service contract is expired. However, I wonder how that turned out for the CA buyer. Wouldn't it fail emissions?
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Old 02-19-2015, 10:21 AM
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Re: Eco Mode questions + couple others

Thanks JAJE. Yes I will have electric trailer brakes. I will just have to try it in normal mode and sport mode and see how it performs. Your MPH's sound really good. at 2500lbs my mph will even be better.
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Old 02-19-2015, 12:36 PM
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Re: Eco Mode questions + couple others

Quote:
Originally Posted by Roadkill View Post
It's been confirmed that Sport mode reduces engine temps during towing due to the higher RPM. That may not be necessary, but those interested can search the forum to read more.

Nice, DPF/SCR delete & tune is on my list after the warranty/service contract is expired. However, I wonder how that turned out for the CA buyer. Wouldn't it fail emissions?
I included the removed DPF pipe which needed cleaning (you can send them into a DPF specialist and they'll clean it for $300). Haven't heard anything back on whether he had any issues. I'm not sure I'll do a DPF / SCR delete on my '14 as I live in a new state that does emissions testing versus my old state where they did none. The DPF did get the 80% clogged CEL and the dealer quoted me $4,500 for a new one. That's when $300 for the pipe and $700 for the tune and it bumped the CRD's power from 215 hp / 376 ft lbs to 255 hp / 465 ft lbs. and got rid of any lag and e-throttle issues. Holy hell that thing would take off like a scalded cat - the CRD back then had hte SRT8 transmission so it was geared for acceleration. I don't street race but I will get up to the speed limit as fast as I can from time to time surprising many a pony car driver. I miss that outright crazy acceleration but the WK2 Ecodiesel purrs along at 75 mph at 1,800 RPM versus the WK CRD where I'd be at 2,700 RPM.
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