V4 indicator on M7
Thread Starter
Racer
Joined: Jul 2018
Posts: 307
Likes: 72
V4 indicator on M7
I have all the gauges slaved to Sport Mode view. When I am in ECO on the highway I didn’t notice an indication that showed the engine was in V4 mode. Not sure I felt anything either.
Is there an indication of V4 mode on the Sport Gauge mode? Thanks.
Is there an indication of V4 mode on the Sport Gauge mode? Thanks.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,954
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Yes, you can find it on the arrow down keys and push until you see the screen that shows "miles remaining" before your tank runs dry. When you are in ECO, it will go to V4/V8 and give the indication on that screen. Any other mode selected will keep the car in V8 for the M7.
Elmer
Elmer
Last edited by Steve Garrett; Nov 18, 2018 at 10:58 PM.
Safety Car
Joined: Dec 2009
Posts: 4,194
Likes: 305
From: Lake Havasu City Arizona
SoCal Events Coordinator
St. Jude Donor '12
Now aren't you glad you have an M7? That d a r n V4 mode will only activate on a manual trans car if you are in "eco" mode! Who buys a corvette to drive around in eco mode!
Team Owner
Joined: Sep 2010
Posts: 32,164
Likes: 4,620
There is no M7 V4 indicator. There's only the driving mode selector on your console that gives you the choice of Eco mode. Eco mode allows the engine to automatically cycle freely in and out of V4 mode. Eco mode is then indicated at the bottom in your main DIC panel.
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,954
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
There is no M7 V4 indicator. There's only the driving mode selector on your console that gives you the choice of Eco mode. Eco mode allows the engine to automatically cycle freely in and out of V4 mode. Eco mode is then indicated at the bottom in your main DIC panel.
So, you are saying that there isn't a small v4/v8 that changes when the car switches back and forth on the dash? Even if you have the display showing Fuel Range and instant fuel economy on the dash? Is that what you are saying? I don't have the M7 this time in the car, so I have no way of checking. When the M7 is in ECO, there is no way to see if you are V4 or V8?
This screen...
..on an M7 will not show a green V4 where the V8 is showing in the picture?
Elmer
Last edited by eboggs_jkvl; Nov 18, 2018 at 05:53 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,954
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Team Owner
Joined: Sep 2010
Posts: 32,164
Likes: 4,620
I'll have to check more closely. To be honest, I'm so busy watching the road, and shifting, that I haven't ever scrolled through the DIC, while driving. Too dangerous is why.
.
I'll get back to you. Yes, mines an M7.
Drifting
Joined: Jul 2016
Posts: 1,914
Likes: 1,169
From: Keswick, Virginia
My 2017 M7 Stingray only does the green "V4" thing in Eco Mode when driving at a steady speed on the highway. It gives a small "jolt" when going in or out of the 4cyl mode - not unlike the automatic GM cars of the 1980s equipped with a lockup torque converter.
Personally, I find it kind of disconcerting and wonder in the back of my mind if it is good for the engine to run 4 cylinders (hopefully they alternate which ones) in a "dry" mode with no fuel. Maybe I am way off base - no way to know; but I prefer to just leave the car in "Sport" mode all of the time. It still gets decent MPG for a performance car and I don't drive enough miles to worry about saving gas. (I have a 4cyl Honda Accord for that mission.)
Based upon what others have said, the A8 cars will go into "V4" mode no matter how the driver has the control **** set.
Personally, I find it kind of disconcerting and wonder in the back of my mind if it is good for the engine to run 4 cylinders (hopefully they alternate which ones) in a "dry" mode with no fuel. Maybe I am way off base - no way to know; but I prefer to just leave the car in "Sport" mode all of the time. It still gets decent MPG for a performance car and I don't drive enough miles to worry about saving gas. (I have a 4cyl Honda Accord for that mission.)
Based upon what others have said, the A8 cars will go into "V4" mode no matter how the driver has the control **** set.
Burning Brakes
Joined: Sep 2007
Posts: 1,048
Likes: 300
From: FL
Yeah, on the M7 it will only show V4 mode when in ECO mode. Don't waste your time with it as tests have shown it doesn't really save much fuel anyway, maybe 1mpg. Just cruise in 7th gear on the highway and be done with it. A8 owners would LOVE if AFM (V4 mode) only engaged in ECO drive mode but unfortunately it is active in all modes with the A8 and many think this is the root cause of the A8 TC shudder issues.
Melting Slicks
Joined: Mar 2013
Posts: 3,104
Likes: 626
From: Baton Rouge LA
Burning Brakes
Joined: Sep 2007
Posts: 1,048
Likes: 300
From: FL
Eco mode on the M7 just enables AFM mode so during light throttle application you will run in V4 mode. So, you won’t really feel a difference since when you put your foot down it automatically switches to V8 mode.
Safety Car
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
So if you're on a 6 lane freeway with nobody around your saying you can take your right thumb an flip through the settings because you'll hit somebody?!? Where do you drive Joe? I wanna know so I can avoid that area...
Safety Car
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
There is no M7 V4 indicator. There's only the driving mode selector on your console that gives you the choice of Eco mode. Eco mode allows the engine to automatically cycle freely in and out of V4 mode. Eco mode is then indicated at the bottom in your main DIC panel.
(perhaps you should refrain from being so emphatic "YES" to this and "NO" to that.)
Your track record ain't exactly stellar
Last edited by KenHorse; Nov 18, 2018 at 10:55 PM.
Burning Brakes
Joined: Sep 2007
Posts: 1,048
Likes: 300
From: FL
Correct, same thing but active in all modes on the A8. The issue with the A8 and AFM (v4 mode) is that many feel the AFM is the root cause of the TC shudder issue. That said, many A8 owners wish they could disable AFM by simply putting the car in a different drive mode vs having to purchase a Range device or get the car tuned, which will void warranty. I assume the reason GM did this is for CAFE requirements and gas guzzler workarounds. The M7 gets the annoying skip shift while the A8 gets the AFM in all drive modes except in manual mode with paddle shifting.
Le Mans Master
Joined: Dec 2013
Posts: 5,888
Likes: 1,559
From: Calgary Alberta