Eco mode question
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 28
From: Palm Beach County FL
Eco mode question
Car only has like 200 miles on it right now, but I wanted to try the eco mode on the highway and I couldn't get it to turn on V4 mode past 70 mph on a flat road (no decline/incline) if I put the cruise control to 70, it kicked on. at 71+ it wouldn't turn on. I was in 7th gear
anyone know the limitations? break in period related? V4 is set to a certain speed?
Thanks!
edit: yes car was in eco mode
anyone know the limitations? break in period related? V4 is set to a certain speed?
Thanks!
edit: yes car was in eco mode
Last edited by 11B250; Mar 7, 2015 at 11:23 AM.
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 28
From: Palm Beach County FL
Racer
Joined: Nov 2013
Posts: 399
Likes: 12
From: Vancouver Washington
Not sure if its a break in limitation logic or not. I own a 2015 C7 Z51 M7. It will remain in V4 over 71 mph. If I am on a long stretch it will cycle back to V8 mode if I approach an incline.
I have noticed that in 7th gear on a flat highway in Eco, the difference in mileage between Tour (V8) and Eco(V4) is negligible. The best I have done over a 100 miles in either is 29MPG. Still impressive MPG. That said, I am no expert concerning Eco mode and don't use it much.
I have noticed that in 7th gear on a flat highway in Eco, the difference in mileage between Tour (V8) and Eco(V4) is negligible. The best I have done over a 100 miles in either is 29MPG. Still impressive MPG. That said, I am no expert concerning Eco mode and don't use it much.
Last edited by romaja; Mar 7, 2015 at 11:45 AM.
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 28
From: Palm Beach County FL
Not sure if its a break in limitation logic or not. I own a 2015 C7 Z51 M7. It will remain in V4 over 71 mph. If I am on a long stretch it will cycle back to V8 mode if I approach an incline.
I have noticed that in 7th gear on a flat highway in Eco, the difference in mileage between Tour (V8) and Eco(V4) is negligible. The best I have done over a 100 miles in either is 29MPG. Still impressive MPG. That said, I am no expert concerning Eco mode and don't use it much.
I have noticed that in 7th gear on a flat highway in Eco, the difference in mileage between Tour (V8) and Eco(V4) is negligible. The best I have done over a 100 miles in either is 29MPG. Still impressive MPG. That said, I am no expert concerning Eco mode and don't use it much.
Race Director
Joined: Sep 2013
Posts: 11,825
Likes: 2,474
From: Ft Lauderdale
Tech Contributor
There is nothing the car does in Eco that is involved with break in, in fact, the only way at all the car is diff in break in is the yellow changes on the tach for highest revs suggested.
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 28
From: Palm Beach County FL
I'll try again tonight on my way to work and see what happens.
Gr8Corvette
Joined: Jun 2003
Posts: 1,139
Likes: 2
From: Indian Harbour Beach Florida
How did you know you were - or were not - in four cylinder mode?
When I was still in the break in period, I tried all the modes for one tank of gas each. While in Eco mode, there was never any indication of how many cylinders were operating. I did a combination of city and highway driving.
My best mileage (as indicated by dividing the mile driven by the gallons of gas at the next fill up) was in the Sport mode. I have just left it in Sport mode since then.
When I was still in the break in period, I tried all the modes for one tank of gas each. While in Eco mode, there was never any indication of how many cylinders were operating. I did a combination of city and highway driving.
My best mileage (as indicated by dividing the mile driven by the gallons of gas at the next fill up) was in the Sport mode. I have just left it in Sport mode since then.
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Intermediate
Joined: Feb 2011
Posts: 29
Likes: 2
From: Madison MS
Engine break in
Car only has like 200 miles on it right now, but I wanted to try the eco mode on the highway and I couldn't get it to turn on V4 mode past 70 mph on a flat road (no decline/incline) if I put the cruise control to 70, it kicked on. at 71+ it wouldn't turn on. I was in 7th gear
anyone know the limitations? break in period related? V4 is set to a certain speed?
Thanks!
edit: yes car was in eco mode
anyone know the limitations? break in period related? V4 is set to a certain speed?
Thanks!
edit: yes car was in eco mode
Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
Read the manual end of page 9-18 and beginning of 9-19
cut and pasted below from the on-line manual about engine break in for the first 500 miles. Do not use the cruse control! If I recall correctly I was also told not to use the economy mode during the break in period.
"Driving and Operating 9-19
.
Do not exceed 4000 rpm.
.
Avoid driving at any one
constant speed, fast or slow,
including the use of cruise
control"
Drifting
Joined: Jul 2011
Posts: 1,860
Likes: 85
From: Graniteville South Carolina
How did you know you were - or were not - in four cylinder mode?
When I was still in the break in period, I tried all the modes for one tank of gas each. While in Eco mode, there was never any indication of how many cylinders were operating. I did a combination of city and highway driving.
My best mileage (as indicated by dividing the mile driven by the gallons of gas at the next fill up) was in the Sport mode. I have just left it in Sport mode since then.
When I was still in the break in period, I tried all the modes for one tank of gas each. While in Eco mode, there was never any indication of how many cylinders were operating. I did a combination of city and highway driving.
My best mileage (as indicated by dividing the mile driven by the gallons of gas at the next fill up) was in the Sport mode. I have just left it in Sport mode since then.
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 28
From: Palm Beach County FL
Black plate (19,1)
Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
Read the manual end of page 9-18 and beginning of 9-19
cut and pasted below from the on-line manual about engine break in for the first 500 miles. Do not use the cruse control! If I recall correctly I was also told not to use the economy mode during the break in period.
"Driving and Operating 9-19
.
Do not exceed 4000 rpm.
.
Avoid driving at any one
constant speed, fast or slow,
including the use of cruise
control"
Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
Read the manual end of page 9-18 and beginning of 9-19
cut and pasted below from the on-line manual about engine break in for the first 500 miles. Do not use the cruse control! If I recall correctly I was also told not to use the economy mode during the break in period.
"Driving and Operating 9-19
.
Do not exceed 4000 rpm.
.
Avoid driving at any one
constant speed, fast or slow,
including the use of cruise
control"
Just to change up the RPMs on the highway, I change speed between 65-80 and change gears between 6th and 7th
How did you know you were - or were not - in four cylinder mode?
When I was still in the break in period, I tried all the modes for one tank of gas each. While in Eco mode, there was never any indication of how many cylinders were operating. I did a combination of city and highway driving.
My best mileage (as indicated by dividing the mile driven by the gallons of gas at the next fill up) was in the Sport mode. I have just left it in Sport mode since then.
When I was still in the break in period, I tried all the modes for one tank of gas each. While in Eco mode, there was never any indication of how many cylinders were operating. I did a combination of city and highway driving.
My best mileage (as indicated by dividing the mile driven by the gallons of gas at the next fill up) was in the Sport mode. I have just left it in Sport mode since then.
Thread Starter
Melting Slicks
Joined: Nov 2013
Posts: 2,048
Likes: 28
From: Palm Beach County FL
Racer
Joined: Nov 2013
Posts: 399
Likes: 12
From: Vancouver Washington
Let us know what you find.
Race Director
Joined: Sep 2013
Posts: 11,825
Likes: 2,474
From: Ft Lauderdale
Tech Contributor
Eco mode is meant to work when the motor transforms to a 140 hp car in eco. Any load whatsoever, or lugging, will not let that happen. Essentally, unless you are on a flat road with no headwind, it will stay in v8. Yeah, 7 th gear will kick it out of eco unless there is no load, gear 7 can lug occasionally.
Last edited by Glen e; Mar 8, 2015 at 01:47 PM.
Drifting
Joined: Feb 2015
Posts: 1,478
Likes: 520
From: West Columbia Texas
Reading this thread was interesting....for the simple reason that I drive a LOT of highway miles everyday going to and from work. BUT I have my car is Tour Mode all the time. and my car goes into V4 mode anytime I am maintaining a constant speed, or using the cruise.
So this begs the question what is the real different between Tour and ECO modes due to the fact that the car goes into V4 mode in Tour.
So this begs the question what is the real different between Tour and ECO modes due to the fact that the car goes into V4 mode in Tour.