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  #1  
Old 09-26-2014, 09:48 PM
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Auto Mode VS Track Mode MPG Test.

Ok i did a intown driving full tank of 89 octane with 1/2 driving in auto mode and 1/2 in sports mode. Sports mode was more responsive and at 50/60 mph sports mode was in 5th gear where auto mode was in 7 or 8th gear. The mpg in the test was 18.5 where my normal 89 octane in auto mode only has been 20.5 mpg. IMO i think sports mode is great for intown driving and auto mode would be the best for freeway driving. We found out that our 2012 srt8 was best driven in sports mode all the time because of the better shift pattern.

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Old 09-27-2014, 10:39 AM
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Re: Auto Mode VS Track Mode MPG Test.

I'm personally disappointed in the Cherokee Sport mode. It's more like a Street Racing Mode.....a bit too aggressive for a daily driver setting....IMHO. We have a Jag - my wife drives it in Auto mode and I drive it in SPORT mode all the time. The Jag delays upshift, downshifts quicker (less go-pedal depression), but doesn't hold the cruising gear at 2,500 RPM +/- as the Cherokee does. Perhaps the SRT engineers programmed the Cherokee Sport mode shift points.

I only use the Cherokee Sport mode for specific situations, and then revert to Auto to settle back in to cruising.

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Old 09-27-2014, 12:18 PM
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Re: Auto Mode VS Track Mode MPG Test.

I believe the Cherokee is designed to drive in auto mode, that is FWD unless conditions dictate 4WD.
You have the option to use several 4x4 modes if you wish.
Anything other than FWD will cost you mpg. The 2 mpg mentioned by Jim383 is right on. Most of your AWD vehicles will show EPA loss in that range over the 2WD same model/engine.
I find "Sport mode" stiff and makes the Cherokee feel like its dragging. But no loss of power/acceleration. I guess that's because now you got more drag because of 4WD in action. It feels very firm on the road especially with those wide tires on the Limited.
But much like Desert Hiker I use Auto all the time unless there is road conditions that require it, like rain/ wet pavement or snow. I do not need Auto sending the system in and out of 4WD to max mpg.
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Old 09-27-2014, 01:23 PM
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Re: Auto Mode VS Track Mode MPG Test.

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Originally Posted by Jeepster910 View Post
I believe the Cherokee is designed to drive in auto mode, that is FWD unless conditions dictate 4WD.
You have the option to use several 4x4 modes if you wish.
Anything other than FWD will cost you mpg. The 2 mpg mentioned by Jim383 is right on. Most of your AWD vehicles will show EPA loss in that range over the 2WD same model/engine.
I find "Sport mode" stiff and makes the Cherokee feel like its dragging. But no loss of power/acceleration. I guess that's because now you got more drag because of 4WD in action. It feels very firm on the road especially with those wide tires on the Limited.
But much like Desert Hiker I use Auto all the time unless there is road conditions that require it, like rain/ wet pavement or snow. I do not need Auto sending the system in and out of 4WD to max mpg.
1 thing i DONT like is in auto mode it shifts way to early as chrysler as it set to get into over drive as soon as possible. My 2012 srt8 jeep was like that and the wife even said she liked sports mode in it better than auto mode. Were going to the track in late oct and run the 1/8 mile with a bunch of srt8 and ill be testing both auto and sports mode to see if theres any diff in the launches and what diff my 60' times are in both modes. The traffic in so ca is so bad thats why im testing both mode to see which 1 is more desirable in the traffic.
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Old 09-27-2014, 02:58 PM
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Re: Auto Mode VS Track Mode MPG Test.

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Originally Posted by jim383 View Post
1 thing i DONT like is in auto mode it shifts way to early as chrysler as it set to get into over drive as soon as possible. My 2012 srt8 jeep was like that and the wife even said she liked sports mode in it better than auto mode. Were going to the track in late oct and run the 1/8 mile with a bunch of srt8 and ill be testing both auto and sports mode to see if theres any diff in the launches and what diff my 60' times are in both modes. The traffic in so ca is so bad thats why im testing both mode to see which 1 is more desirable in the traffic.
Your test should be interesting. With any wheel slippage (on start up) it should jump into 4WD from FWD. How long it holds in 4WD is the question. It is my understanding it will jump back to FWD as conditions dictate.
I think its shifting in auto mode is geared more to mpg than acceleration.
I would guess that in sport it would go into higher RPMs before shifting which would benefit you off the line. But that's not my area.
The one thing I wish that this Cherokee would do was have an option for showing the current gear on the dash..
#1 on my list would be a indicator on the dash to show FWD or 4WD.
Good luck with your test.
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Old 09-27-2014, 04:19 PM
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Re: Auto Mode VS Track Mode MPG Test.

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Originally Posted by Jeepster910 View Post
Your test should be interesting. With any wheel slippage (on start up) it should jump into 4WD from FWD. How long it holds in 4WD is the question. It is my understanding it will jump back to FWD as conditions dictate.
I think its shifting in auto mode is geared more to mpg than acceleration.
I would guess that in sport it would go into higher RPMs before shifting which would benefit you off the line. But that's not my area.
The one thing I wish that this Cherokee would do was have an option for showing the current gear on the dash..
#1 on my list would be a indicator on the dash to show FWD or 4WD.
Good luck with your test.
I have to believe that the FWD/4WD indicator has to be built into the Uconnect but is accessible only in the dealer mode. It would be fun to be able to somehow access it and display it in everyday driving.
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Old 09-28-2014, 01:15 AM
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Re: Auto Mode VS Track Mode MPG Test.

Quote:
Originally Posted by Jeepster910 View Post
... The one thing I wish that this Cherokee would do was have an option for showing the current gear on the dash..
#1 on my list would be a indicator on the dash to show FWD or 4WD.
Good luck with your test.
Agree! That would be very nice. For the mode, they could have a graphic of the chassis showing which components were engaged and the torque proportion.
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Old 11-30-2014, 09:03 PM
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Re: Auto Mode VS Track Mode MPG Test.

Ok i did another test in auto mode vs sports mode with a full tank this time in city and freeway driving combined. The auto mode was 1.2 mpg better that sports mode and the auto mode on the freeway never got out of 8th gear and in sports mode on the freeway it never got out of 6th gear unless i was doing 82 mph. I do like the sports mode as the ship points are more like the srt8 sports mode and are more responsive because there always in a lower gears than auto mode at the same speed but i guess ill get use to auto mode lol.
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Old 12-01-2014, 09:35 AM
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Re: Auto Mode VS Track Mode MPG Test.

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Originally Posted by jim383 View Post
Ok i did another test in auto mode vs sports mode with a full tank this time in city and freeway driving combined. The auto mode was 1.2 mpg better that sports mode and the auto mode on the freeway never got out of 8th gear and in sports mode on the freeway it never got out of 6th gear unless i was doing 82 mph. I do like the sports mode as the ship points are more like the srt8 sports mode and are more responsive because there always in a lower gears than auto mode at the same speed but i guess ill get use to auto mode lol.
Jim, Thanks for the info. The Sports mode is more like a street racing mode perhaps developed by the SRT guys - great for those racy times, but (IMHO) not a regular daily driver setting. We have a Jag with a Sports mode and it's a nice kick up for daily driving - again, IHMO.

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Old 12-01-2014, 10:06 AM
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Re: Auto Mode VS Track Mode MPG Test.

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Originally Posted by Desert Hiker View Post
Jim, Thanks for the info. The Sports mode is more like a street racing mode perhaps developed by the SRT guys - great for those racy times, but (IMHO) not a regular daily driver setting. We have a Jag with a Sports mode and it's a nice kick up for daily driving - again, IHMO.

Desert Hiker
Ya i here ya as my other 2 jeeps were srt8 and i didnt like auto mode in them and the srt guys said just drive in sports mode and that will take care of your engine lugging at slower speeds . All my wife said was b.s. on that im driving in auto mode lol.
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Old 12-01-2014, 06:26 PM
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Re: Auto Mode VS Track Mode MPG Test.

Eh. I just use Sport mode on those twisty/turny, rolling hill roads. Fun ride.
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Old 12-01-2014, 07:43 PM
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Re: Auto Mode VS Track Mode MPG Test.

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Eh. I just use Sport mode on those twisty/turny, rolling hill roads. Fun ride.
The 1.2 mpg ill give up fun some fun lol. Ill tell you 1 thing these firestone all terrain tires suck for traction in the rain.
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