Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 -

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 04-15-2012, 08:51 AM
Member
 
Join Date: Jan 2012
Posts: 134
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 5091
ColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond reputeColinIllinois has a reputation beyond repute
Question about Sport Mode.

This is probably a dumb question but what the heck, it won't be the first time: When my JGC 5.7L is in "Sport Mode" does that have any effect whatsoever on gas mileage? Not that it much matters but I was just curious.


Thanks in advance.

Colin
__________________

__________________
Reply With Quote
  #2  
Old 04-15-2012, 09:01 AM
mot250's Avatar
Member
My Jeep: 2012 3.6L WK2
 
Join Date: Mar 2012
Posts: 99
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1035
mot250 is on a distinguished road
In my 3.6 v-6, I've noticed that part of the Sport Mode program seems to hold the transmission in 4th gear longer even after a constant speed has been reached. Delaying the shift to 5th gear (overdrive) should negatively affect MPG. I'm going to do some comparison testing between Sport and Auto modes and between Sport and manually shifting to OD.
__________________

__________________
Reply With Quote
  #3  
Old 04-15-2012, 10:11 AM
JTS97Z28's Avatar
Premium Member
My Jeep: 2012 3.6L WK2
 
Join Date: Jan 2011
Location: Plainfield, IL
Posts: 1,451
Thanks: 0
Thanked 29 Times in 19 Posts
Rep Power: 25180
JTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond reputeJTS97Z28 has a reputation beyond repute
Send a message via AIM to JTS97Z28
Re: Question about Sport Mode.

This question has been asked several times here, but no one has really given a confirmed answer. Some people say it should improve fuel economy, and others say it will be slightly less in sport mode.
If there is a difference its minimal, but I personally like driving the car more in sport mode, but the delayed shift into 5th annoys me especially since that speed range between 45 and 50 is a very common speed that people cruise at. So unless you get it above 48mph the rpm's just hang until you either speed up a little, or shift it into 5th manually.
The perfect "mode" in my opinion if we were able to customize one would be sport mode charecteristics and ride height, with auto shift points and full ESC (so the stupid light doesnt stay on).

I think the best way to find out would be do a full tank of driving strictly in sport, then do another tank in nothing but auto. If your daily driving is pretty consistant such as your work commute, then maybe this method would show some somewhat accurate results.

James
__________________
Reply With Quote
  #4  
Old 04-15-2012, 01:33 PM
ColdCase's Avatar
Senior Member
 
Join Date: Apr 2011
Posts: 1,446
Thanks: 0
Thanked 27 Times in 26 Posts
Rep Power: 26472
ColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond reputeColdCase has a reputation beyond repute
Re: Question about Sport Mode.

Since the shift points are delayed to higher RPM and downshifts are sooner, sport mode decreases mpg during acceleration and deceleration for most of us. MPG is identical at constant speed/load. I have not noticed a measurable difference, however. The mpg that full time aero mode sport gives you is not going to buy enough mpg to counter effect the shift point changes.
__________________
Reply With Quote
  #5  
Old 04-15-2012, 01:46 PM
Ashton's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: Feb 2012
Location: Dallas, Texas
Posts: 57
Thanks: 8
Thanked 1 Time in 1 Post
Rep Power: 1019
Ashton is on a distinguished road
Re: Question about Sport Mode.

I have found that it does affect MPG if you are in the city with a lot of stopping and starting. Also helps here in Texas with 20 MPH school zones. I find that when I'm not in sport, the gearing right at 20 MPH is totally wrong and nets about 10 MPG where with sport on it holds the gear at that speed and I'm closer to 17 MPG. I pass through 4 of those on my way to work, and it makes a difference.
__________________
2012 Overland 5.7L ACC Maximum Steel/Saddle
Reply With Quote
  #6  
Old 04-16-2012, 08:59 AM
ckehl2's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: Jan 2012
Location: Indiana
Posts: 66
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1616
ckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond reputeckehl2 has a reputation beyond repute
Re: Question about Sport Mode.

I tested this myself, drove a whole tank in sport mode, and a whole tank in Auto, both weeks were the same commute to work. Noted 1 mpg better in sport mode. Not a huge difference, but I like driving it better in sport anyway.
__________________
2012 Hemi Overland
2005 HD Springer Softail Classic
Reply With Quote
  #7  
Old 04-16-2012, 03:23 PM
Member
My Jeep: 2012 3.6L WK2
 
Join Date: Apr 2011
Location: Johnstown, PA
Posts: 606
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1872
Jdsmitty10 is a glorious beacon of light
Re: Question about Sport Mode.

Quote:
Originally Posted by ckehl2 View Post
I tested this myself, drove a whole tank in sport mode, and a whole tank in Auto, both weeks were the same commute to work. Noted 1 mpg better in sport mode. Not a huge difference, but I like driving it better in sport anyway.
Really? That's good to know. Sport mode for me from now on!
__________________
2012 Limited V6 4x4 w/20" wheels, lux package, 730N stone white on black. 18% tint on front windows
2012 Toyota Camry SE V6 Loaded
2007 Harley Davidson Softail Deuce
Reply With Quote
  #8  
Old 04-17-2012, 11:45 AM
tallguy's Avatar
Member
 
Join Date: Nov 2011
Location: Vancouver
Posts: 169
Thanks: 16
Thanked 4 Times in 4 Posts
Rep Power: 4985
tallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond reputetallguy has a reputation beyond repute
Re: Question about Sport Mode.

From User Guide:

Sport Dry weather, on-road calibration. Only available in 4WD High
range. Performance-based tuning that provides a rear wheel drive feel
but with improved handling and acceleration over a two-wheel drive
vehicle. The Electronic Stability Control will set to allow more driver
control of the vehicle while maintaining safe handling controls. The
vehicle will lower (if equipped with Air Suspension) by 0.59 inches
(15 mm) in the SPORT mode.
__________________

__________________
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
V6 Overland Sport Mode question mot250 Engine Performance/Intakes/Exhausts 1 04-14-2012 10:14 AM
Question about Sport mode JF_Inferno Suspension/Driveline/Brakes/Wheels/Tires 68 10-05-2011 04:10 AM
Air suspension sport mode question jp467 Suspension/Driveline/Brakes/Wheels/Tires 1 07-18-2011 08:45 PM
Sport Mode cloud11244 Suspension/Driveline/Brakes/Wheels/Tires 8 07-17-2011 07:49 AM
WK2 Sport mode VS Auto mode erickpbl Trouble Shooting/Problems/Service 17 12-06-2010 12:55 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 07:42 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community