Eco Mode
Le Mans Master
Joined: Apr 2013
Posts: 6,671
Likes: 4,144
2020 C8 of the Year Finalist - Unmodified
Cross country? Sure. In town, no way.
I think it's a great idea. Who cares if it's running on 4 or 8 cylinders cruising down the hwy at 70 all day long?
Would you rather it not be there and pay the gas guzzler tax?
I think it's a great idea. Who cares if it's running on 4 or 8 cylinders cruising down the hwy at 70 all day long?
Would you rather it not be there and pay the gas guzzler tax?
Last edited by Sin City; Sep 4, 2013 at 04:06 PM.
Melting Slicks
Joined: Jul 2002
Posts: 2,223
Likes: 556
From: Tallahassee fl
Fartin' down the highway... why not? I rather enjoyed my MPG numbers on my old 93 vette. I would get 27.7 consistently on the highway going fast. If I crept along at 65 I could do over 30 consistently.
Team Owner
Joined: Aug 2002
Posts: 35,617
Likes: 167
Tech Contributor
Cruise-In 11 Veteran
NCM Ambassador
St. Jude Donor '05-'06-'07-'10
Long highway trip/road trip, why not. It'll do 75+ in ECO mode. If I'm just cruising along in traffic, might as well maximize my fuel dollar. I think of it as green credits for when I'm playing on the track or back roads. 
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,032
Likes: 4
From: Houston Tx
St. Jude Donor '06
Merging onto highways...getting around slow cars...your use to being able to punch it a little...4 cylinders won't get er done lol. I'll try it and see, but my guess is I will spend a lot of my time in Tour Mode
Melting Slicks
Joined: Jun 2004
Posts: 2,130
Likes: 54
From: Granbury, Pecan Plantation TX
Why not get some fuel economy when on a road trip, I have been in a few GMC & Chevy trucks with this feature and it is seemless.
PS: I have a 13 Hyundai "Genesis Coupe 3.8 348Hp 8 Sp, only problem is the Corvette will get better milage than the Genesis.
Last edited by BRCC; Sep 4, 2013 at 04:28 PM.
Safety Car
Joined: Apr 2007
Posts: 4,547
Likes: 609
From: Southeast, WI
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Safety Car
Joined: May 2008
Posts: 4,629
Likes: 19
From: Chesapeake VA
I guess you don't understand that as soon as you roll into the throttle it'll turn off DOD and go to V8 mode instantly?
Burning Brakes
Joined: Jan 2005
Posts: 796
Likes: 444
From: Miami & Naples, FL
Unmodified C8 of the Year 2021 Finalist
This is a NON issue.
This car is so superbly engineered, that we'll hardly notice the 4 cylinder mode. We have a 2011 Tahoe, and the 5.3 engine goes in and out of 4 cylinder mode all of the time. It has NEVER failed to give us the punch we need to pass or speed up. But, on the turnpike, at a steady 75 MPH using cruise control, this behemoth gets 23 MPG using the 4 cylinder mode.
Truth is, even in ECO mode, around town when shifting between gears, the engine will remain at 8 cylinder full power.
Fret not........saving a little gas is not a penalty - it's a benefit.
It sure beats paying a gas guzzler tax !!!
This car is so superbly engineered, that we'll hardly notice the 4 cylinder mode. We have a 2011 Tahoe, and the 5.3 engine goes in and out of 4 cylinder mode all of the time. It has NEVER failed to give us the punch we need to pass or speed up. But, on the turnpike, at a steady 75 MPH using cruise control, this behemoth gets 23 MPG using the 4 cylinder mode.
Truth is, even in ECO mode, around town when shifting between gears, the engine will remain at 8 cylinder full power.
Fret not........saving a little gas is not a penalty - it's a benefit.
It sure beats paying a gas guzzler tax !!!
Burning Brakes
Joined: Jan 2005
Posts: 1,055
Likes: 24
From: Cary NC
I'm still a little fuzzy on all the default settings, but I think that in ECO mode the NPP flaps stay closed, keeping the exhaust a little quieter. If this is correct, I might use it when coming and going on my little suburban cul-de-sac so I don't annoy the neighbors.
I would say "Feel free to correct me if I'm wrong" - But this is the C7 Forum, so that would just be redundant.
I would say "Feel free to correct me if I'm wrong" - But this is the C7 Forum, so that would just be redundant.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
"I'm still a little fuzzy on all the default settings, but I think that in ECO mode the NPP flaps stay closed, keeping the exhaust a little quieter. If this is correct, I might use it when coming and going on my little suburban cul-de-sac so I don't annoy the neighbors." CaryKen
I'd be surprised if ECO mode was the only one where the NPP was closed. but like you, I could be wrong, and will be corrected.
Last edited by AORoads; Sep 4, 2013 at 09:39 PM.
Instructor
Joined: Sep 2011
Posts: 197
Likes: 1
From: Tolland CT
I'm still a little fuzzy on all the default settings, but I think that in ECO mode the NPP flaps stay closed, keeping the exhaust a little quieter. If this is correct, I might use it when coming and going on my little suburban cul-de-sac so I don't annoy the neighbors.
I would say "Feel free to correct me if I'm wrong" - But this is the C7 Forum, so that would just be redundant.
I would say "Feel free to correct me if I'm wrong" - But this is the C7 Forum, so that would just be redundant.
Thread Starter
Melting Slicks
Joined: Jul 2005
Posts: 2,032
Likes: 4
From: Houston Tx
St. Jude Donor '06
Race Director
Joined: Nov 2003
Posts: 16,066
Likes: 4,148
From: Bergen county NJ
I definitely would use eco mode for highway travels over long distances...
I'm just glad we can shut it off whenever we like...
That's awesome to see GM have the guts to offer this set up the way it is..
I'm just glad we can shut it off whenever we like...
That's awesome to see GM have the guts to offer this set up the way it is..
Melting Slicks
Joined: May 2007
Posts: 3,269
Likes: 25
From: Simi Valley Ca
I will absolutely use Eco mode. No reason not to. As I understand it, the transition from 4 cylinders is pretty much transparent. Get on the gas and you get all 8 cylinders. When in Eco mode, it will only activate cylinder deactivation at lower RPM's so the way I figure it, choosing a lower gear is all it will take to run on 8 under most circumstances.
I put 10,000 - 12,000 miles a year on my vette and if I can save some money on gas, I'm all for it. I tend to watch my right foot anyway due to all the LEO's around here so I will certainly be able to see appreciable value in that mode and when I want to get on it or hit the canyon, a push of a button or my right foot is all it will take to wake it up.
Race Director
Joined: Jun 2001
Posts: 10,084
Likes: 3,055
From: CA
I will as long as it works better than the Camaro SS Eco mode. The one on the SS is terrible. There is a lot of low frequency drone, and vibration through the floor. I would imagine the Corvette implementation is better. I don't know why the Camaro is so bad, when the Challenger version is so good. In the Challenger, it almost sounds like a V8 above 60 mph, and there is no vibration at all.
Michael
Michael