ECO Mode???
Thread Starter
Racer
Joined: Feb 2016
Posts: 373
Likes: 37
From: West Palm Beach Florida
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???
Team Owner
Joined: Oct 2004
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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; Jan 16, 2019 at 04:26 PM.
Le Mans Master
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From: Down south in Dixie
Last edited by Rebel Yell; Jan 16, 2019 at 04:20 PM.
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Team Owner
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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; Jan 16, 2019 at 04:29 PM.
Le Mans Master
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From: Calgary Alberta
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.
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Last edited by KenHorse; Jan 16, 2019 at 05:40 PM.
Race Director
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From: Guelph, Ontario
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.
Team Owner
Joined: Apr 2013
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From: Chirper Island
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.
Le Mans Master
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Drifting
Joined: Mar 2018
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From: San Francisco Ca
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; Jan 17, 2019 at 11:44 AM.
Melting Slicks
Joined: Oct 2016
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From: Lehigh Valley PA
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.
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.
Melting Slicks
Joined: Aug 2014
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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.
On the other hand, I do see issues here with the A8 transmission, due to the V4/V8 technology...
Race Director
Joined: May 2001
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From: Guelph, Ontario
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.
Instructor
Joined: Nov 2018
Posts: 220
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From: Virginia
I have a ‘14 Stingray bought with 10,000 miles back in November. I don’t 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. I’ve 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.
Once I found the dash setting where you could see it, I was watching it for a few weeks and never noticed. I’ve 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.