V4 indicator on M7
Tech Contributor
Joined: Oct 1999
Posts: 41,062
Likes: 9,825
From: Charlotte, NC (formerly Endicott, NY)
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.
Bill
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,433
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Drifting
Joined: Jan 2001
Posts: 1,326
Likes: 47
From: Tullahoma, TN
Can come in handy when trying to find a dam gas station when driving out in the boonies where free enterprise doesn't want to place fuel stations.......especially if you're fussy about what gas goes in the 6.2....
Safety Car
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
Try running in 6th gear in Eco Mode and see what mileage you get. On my car I found it worked better in 6th gear where the engine stayed in V4 mode Vs switching to V8 mode on every little change in road level. For me it works fine up to the 70-75 mph range and then I do better in 7th. Around town at speeds from 25 to 40 mph driving in 4th and 5th gears the engine runs in V4 mode quite a bit of the time when I am driving at a steady speed.
Bill
Bill
Safety Car
Joined: Jul 2011
Posts: 4,496
Likes: 1,209
From: Phoenix, Arizona
I-8 and I-10 can be pretty sparse at times.
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,433
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
