Notices
C7 General Discussion General C7 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

ECO Mode???

 
Old 01-16-2019, 04:14 PM
  #1  
Dave502
CF Senior Member
Thread Starter
 
Dave502's Avatar
 
Member Since: Feb 2016
Location: West Palm Beach Florida
Posts: 326
Thanks: 0
Thanked 27 Times in 25 Posts
Default ECO Mode???

Have a friend with a 2016 and he says he can feel it go into ECO mode without having switched to ECO. .He feels it in Touring,Wet etc......Does it need to be in ECO MODE to work and change to four cylinders at speed....My 2015 is heavily modified and ECO was deleted in tune and I can't help him???

Dave502 is offline  
Old 01-16-2019, 04:22 PM
  #2  
dvilin
CF Senior Member
 
dvilin's Avatar
 
Member Since: Nov 2007
Location: Rochester New York
Posts: 38,835
Thanked 2,954 Times in 2,114 Posts
Default

With a M7 you must put it into ECO mode not so with the A8.
dvilin is offline  
The Following User Says Thank You to dvilin For This Useful Post:
Avanti (01-17-2019)
Old 01-16-2019, 04:31 PM
  #3  
Foosh
CF Senior Member
 
Foosh's Avatar
 
Member Since: Oct 2004
Location: Maryland/DC Metro
Posts: 15,495
Thanked 6,316 Times in 3,666 Posts
Default

The only OEM way to avoid V4 mode in the A8 is to put the shifter into the manual shift position and use the paddles. Tuning it out is an option if you don't care about having your powertrain warranty blocked.

Last edited by Foosh; 01-16-2019 at 05:26 PM.
Foosh is offline  
The Following User Says Thank You to Foosh For This Useful Post:
V Vette (01-17-2019)
Old 01-16-2019, 04:40 PM
  #4  
Skid Row Joe
CF Senior Member
 
Skid Row Joe's Avatar
 
Member Since: Sep 2010
Location: Dallas, Texas - Make America Great Again!
Posts: 13,781
Thanked 990 Times in 784 Posts
Default

If it's the M7, (manual transmission) then, yes.

If it's the A8 transmission, then no, it will always engage V4 mode.
Skid Row Joe is offline  
Old 01-16-2019, 04:46 PM
  #5  
Dave502
CF Senior Member
Thread Starter
 
Dave502's Avatar
 
Member Since: Feb 2016
Location: West Palm Beach Florida
Posts: 326
Thanks: 0
Thanked 27 Times in 25 Posts
Default

Thanks everyone,I'll pass this on to him.....So the ECO MODE position on A8 is worthless...That's what he has
Dave502 is offline  
Old 01-16-2019, 05:02 PM
  #6  
Woodson
CF Senior Member
 
Woodson's Avatar
 
Member Since: Dec 2013
Location: Calgary Alberta
Posts: 4,656
Thanked 801 Times in 472 Posts
Default

Also worthless in the M7 imo.
Woodson is offline  
The Following 2 Users Say Thank You to Woodson For This Useful Post:
Avanti (01-17-2019), dial666 (01-17-2019)
Old 01-16-2019, 05:17 PM
  #7  
Rebel Yell
CF Senior Member
 
Rebel Yell's Avatar
 
Member Since: Jan 2006
Location: Down south in Dixie
Posts: 5,896
Thanked 2,037 Times in 1,389 Posts
Default

Originally Posted by Dave502 View Post
Thanks everyone,I'll pass this on to him.....So the ECO MODE position on A8 is worthless...That's what he has
The A8 transmissions are designed to go into V4 mode any time the parameters are met, and that is a lot with these trannys. The Eco mode with an automatic just keeps the car in V4 mode longer while cruising at highway speeds, and the engine with still move between V4 and V8. The V4 mode can be defeated in two ways that will not void the warranty. The first way if to put the trans in sport mode, and shift with the paddles. The second way is with a Range Technology AFM (V4) disabler. www.rangetechnology.com. Many here use the Range unit.

Last edited by Rebel Yell; 01-16-2019 at 05:20 PM.
Rebel Yell is offline  
The Following User Says Thank You to Rebel Yell For This Useful Post:
Maxie2U (01-17-2019)
Old 01-16-2019, 05:19 PM
  #8  
LuisZ51
CF Senior Member
 
LuisZ51's Avatar
 
Member Since: Jan 2019
Location: Lake Placid, FL
Posts: 184
Thanks: 0
Thanked 30 Times in 24 Posts
Default

Originally Posted by Woodson View Post
Also worthless in the M7 imo.
How so? On long highway trips it saves gas for me.
LuisZ51 is offline  
Old 01-16-2019, 05:28 PM
  #9  
Foosh
CF Senior Member
 
Foosh's Avatar
 
Member Since: Oct 2004
Location: Maryland/DC Metro
Posts: 15,495
Thanked 6,316 Times in 3,666 Posts
Default

Yes, it's great for that. Another thing I like about the M7 is that I never have to see V4 unless want to save some fuel while cruising at 70 in 7th on a road trip by switching to ECO. On the A8, it can go into V4 in any mode, unless you switch to manual shifting.

Last edited by Foosh; 01-16-2019 at 05:29 PM.
Foosh is offline  
Old 01-16-2019, 05:48 PM
  #10  
Woodson
CF Senior Member
 
Woodson's Avatar
 
Member Since: Dec 2013
Location: Calgary Alberta
Posts: 4,656
Thanked 801 Times in 472 Posts
Default

Personally I'd rather avoid any potential V4 issues in order to save a few pennies. I haven't seen any quantifiable proof that it even saves any gas, especially at little over idle RPM's in 7th.
Woodson is offline  
The Following 3 Users Say Thank You to Woodson For This Useful Post:
Avanti (01-17-2019), dial666 (01-17-2019), V Vette (01-17-2019)
Old 01-16-2019, 06:39 PM
  #11  
KenHorse
Obama, the worst POS ever
Support Corvetteforum!
 
KenHorse's Avatar
 
Member Since: Aug 2007
Location: Aurora, OR by way of Maui, HI. I have the heart of a Progressive - I keep it in a jar on my desk
Posts: 101,687
Thanked 649 Times in 440 Posts
St. Jude Donor '11-'12-'13, '16-'17-'18
Default

Originally Posted by Woodson View Post
Personally I'd rather avoid any potential V4 issues in order to save a few pennies. I haven't seen any quantifiable proof that it even saves any gas, especially at little over idle RPM's in 7th.
Can't speak (yet) for my Grand Sport but I was reluctant to use it in my '14 Z51 M7 until one day I did. It did make a small difference in mileage for me - maybe 1 to 1.5 MPG on longer highway trips increase.

Quite literally, your mileage may vary

Last edited by KenHorse; 01-16-2019 at 06:40 PM.
KenHorse is offline  
The Following User Says Thank You to KenHorse For This Useful Post:
PHILLIP YOUNG (01-16-2019)
Old 01-16-2019, 07:09 PM
  #12  
Patman
CF Senior Member
 
Patman's Avatar
 
Member Since: May 2001
Location: Oakville Ontario
Posts: 13,681
Thanked 1,284 Times in 806 Posts
Default

Originally Posted by Woodson View Post
Personally I'd rather avoid any potential V4 issues in order to save a few pennies. I haven't seen any quantifiable proof that it even saves any gas, especially at little over idle RPM's in 7th.
I have found it gives me about a 5% boost in MPG so that's pretty significant.

I'm not sure what issues you'd be worried about with the M7 and V4 mode though. I know a lot of A8 guys try to avoid V4 at all costs to avoid any torque converter issues, but I've never heard of anyone with an M7 having a problem related to AFM. If you're just going to be cruising along for long periods of time on the highway you might as well use it, it's free money in your pocket.
Patman is offline  
Old 01-16-2019, 11:51 PM
  #13  
owc6
CF Senior Member
 
owc6's Avatar
 
Member Since: Apr 2013
Location: Broomes Island, MD
Posts: 14,880
Thanked 2,270 Times in 1,613 Posts
Default

Originally Posted by Dave502 View Post
Thanks everyone,I'll pass this on to him.....So the ECO MODE position on A8 is worthless...That's what he has
Yes, and no.

Putting an auto into ECO will extend the parameters that the car will go into, and remain in V4. It may be only slightly, it may or may not be important to you, but that's what it does.
owc6 is online now  
Old 01-17-2019, 12:36 PM
  #14  
Maxpowers
CF Senior Member
 
Maxpowers's Avatar
 
Member Since: Aug 2015
Location: Toronto
Posts: 2,484
Thanked 580 Times in 454 Posts
Default

Originally Posted by LuisZ51 View Post
How so? On long highway trips it saves gas for me.
I can't stand the way I can feel it when it switches in and out of V4 mode when cruising down a long stretch of highway. It is very slight (my wife can't tell), but I can and it drives me nuts.
Maxpowers is offline  
The Following 3 Users Say Thank You to Maxpowers For This Useful Post:
1950silverstreak (01-17-2019), kenownr (01-18-2019), Rebel Yell (01-17-2019)
Old 01-17-2019, 12:43 PM
  #15  
Parcival
CF Senior Member
 
Parcival's Avatar
 
Member Since: Mar 2018
Location: San Francisco Ca
Posts: 891
Thanked 190 Times in 148 Posts
Default

Originally Posted by Woodson View Post
Personally I'd rather avoid any potential V4 issues in order to save a few pennies. I haven't seen any quantifiable proof that it even saves any gas, especially at little over idle RPM's in 7th.
meh evidence, I bet it does use less just because the science of fewer cylinders means less gas consumption...

issue is do we care or notice. Long highway trips for sure which is when I use Eco. Not so much everywhere else, So i use Tour or sport most days.




Last edited by Parcival; 01-17-2019 at 12:44 PM.
Parcival is offline  
Old 01-17-2019, 12:51 PM
  #16  
Woodson
CF Senior Member
 
Woodson's Avatar
 
Member Since: Dec 2013
Location: Calgary Alberta
Posts: 4,656
Thanked 801 Times in 472 Posts
Default

Yeah, I turn off the auto shut-off on my wife's Merc when I'm driving that. The annoyance isn't worth the pennies saved imo.
Woodson is offline  
The Following User Says Thank You to Woodson For This Useful Post:
Maxpowers (01-17-2019)
Old 01-17-2019, 01:06 PM
  #17  
Mayor111
CF Senior Member
 
Mayor111's Avatar
 
Member Since: Oct 2016
Location: Lehigh Valley PA
Posts: 1,574
Thanked 498 Times in 302 Posts
Default

Originally Posted by Patman View Post
I have found it gives me about a 5% boost in MPG so that's pretty significant.

I'm not sure what issues you'd be worried about with the M7 and V4 mode though. I know a lot of A8 guys try to avoid V4 at all costs to avoid any torque converter issues, but I've never heard of anyone with an M7 having a problem related to AFM. If you're just going to be cruising along for long periods of time on the highway you might as well use it, it's free money in your pocket.
Im not disagreeing with you Patman - Im also no mechanic so this is just purely guessing here - but would you think that the cost to repair the mechanics and technology behind changing from V8 to V4 is "unnecessary" given the few bucks you might save annually? In other words you said its a 5% savings. So lets say you get 30 MPG in V8 mode...if you increase that by 5% you then would get 31.5 MPG... If you have (just for ease of math) 15 gallons in your tank at all times - then your getting an extra 22.5 miles more each tank - that's about $3 worth of gas per tank-fill. So does $3 of gas (22.5 miles) really equal the major cost of issues that "could" arise in the engine by switching from V8 to V4? Again - I dont know - Im asking.
Mayor111 is offline  
Old 01-17-2019, 01:25 PM
  #18  
lakemg
CF Senior Member
 
lakemg's Avatar
 
Member Since: Aug 2014
Posts: 2,272
Thanked 575 Times in 450 Posts
Default

Originally Posted by Mayor111 View Post
Im not disagreeing with you Patman - Im also no mechanic so this is just purely guessing here - but would you think that the cost to repair the mechanics and technology behind changing from V8 to V4 is "unnecessary" given the few bucks you might save annually? In other words you said its a 5% savings. So lets say you get 30 MPG in V8 mode...if you increase that by 5% you then would get 31.5 MPG... If you have (just for ease of math) 15 gallons in your tank at all times - then your getting an extra 22.5 miles more each tank - that's about $3 worth of gas per tank-fill. So does $3 of gas (22.5 miles) really equal the major cost of issues that "could" arise in the engine by switching from V8 to V4? Again - I dont know - Im asking.
I frequent this site a lot and I have yet to see any engine failures or needed repairs due to the engine switching between V8 and V4. Now if we roll back to 2009 during my Pontiac G8 GT days, yes we saw quite a few failed lifters because of the DOD design, but that was a Gen IV engine and I've not seen that issue with the LT1 engine, at least not yet unless I missed it.

On the other hand, I do see issues here with the A8 transmission, due to the V4/V8 technology...
lakemg is offline  
Old 01-17-2019, 01:27 PM
  #19  
Patman
CF Senior Member
 
Patman's Avatar
 
Member Since: May 2001
Location: Oakville Ontario
Posts: 13,681
Thanked 1,284 Times in 806 Posts
Default

Originally Posted by Mayor111 View Post
Im not disagreeing with you Patman - Im also no mechanic so this is just purely guessing here - but would you think that the cost to repair the mechanics and technology behind changing from V8 to V4 is "unnecessary" given the few bucks you might save annually? In other words you said its a 5% savings. So lets say you get 30 MPG in V8 mode...if you increase that by 5% you then would get 31.5 MPG... If you have (just for ease of math) 15 gallons in your tank at all times - then your getting an extra 22.5 miles more each tank - that's about $3 worth of gas per tank-fill. So does $3 of gas (22.5 miles) really equal the major cost of issues that "could" arise in the engine by switching from V8 to V4? Again - I dont know - Im asking.
You raise a valid point, but so far it does seem like the AFM hardware itself is pretty solid on these cars, as I can't recall a single person on here reporting any issues in that regard just yet. I guess we'll know for sure once more owners start getting much higher mileage on their LT1s (and they'd have to be owners that use the AFM frequently, like myself)
Patman is offline  
Old 01-17-2019, 01:34 PM
  #20  
yokennyr
CF Member
 
yokennyr's Avatar
 
Member Since: Nov 2018
Location: Virginia
Posts: 64
Thanks: 0
Thanked 43 Times in 9 Posts
Default

I have a Ď14 Stingray bought with 10,000 miles back in November. I donít notice anything at all when it shifts between the v8 and v4.
Once I found the dash setting where you could see it, I was watching it for a few weeks and never noticed. Iíve since stopped watching.
I have only been on short drives since delivery...1 or 2 hours...but I had a 8 hour drive home when I picked up the car. I had it in ECO mode and it seemed to just sip gas. I will certainly use it for longer trips.
yokennyr is offline  

Thread Tools
Search this Thread
Quick Reply: ECO Mode???


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: