Notices
JK Talk General discussion forum regarding thoughts, opinions and rumors about the Jeep JK Wrangler or related subjects that don't quite fit in the Modified, Stock or Electronics forums.

So disappointed in my mpg even with low expectations!

Thread Tools
 
Old 12-28-2011, 06:26 PM
  #11  
JK Newbie
Thread Starter
 
trippnk's Avatar
 
Join Date: Mar 2011
Location: Charleston, SC
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by flatattack
Took a 1200 mile round trip for Thanksgiving in my '12 JKU. The trip was a mixture of flat land, hills and mountians. Averaged 15.8 (hand calculated) with 33" Mickey T's. Not sure what the difference would be, just thought I would post my results.
What gears are you running? You are getting pretty much the same, maybe this is normal... Which would suck lol
Old 12-28-2011, 06:28 PM
  #12  
JK Enthusiast
 
RayHoliO's Avatar
 
Join Date: Nov 2010
Location: joplin, mo
Posts: 411
Likes: 0
Received 0 Likes on 0 Posts
Default

your wheels and tires weight about 16lb more each than stock and have a greater radius, and width.. that's gonna make a difference.
Old 12-28-2011, 06:31 PM
  #13  
JK Newbie
Thread Starter
 
trippnk's Avatar
 
Join Date: Mar 2011
Location: Charleston, SC
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by RayHoliO
your wheels and tires weight about 16lb more each than stock and have a greater radius, and width.. that's gonna make a difference.
I know it will but even guys running 35's are getting better.
Old 12-28-2011, 06:36 PM
  #14  
JK Freak
 
flatattack's Avatar
 
Join Date: Aug 2011
Location: Fernandina Beach, Florida
Posts: 677
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by trippnk
What gears are you running? You are getting pretty much the same, maybe this is normal... Which would suck lol
3.21's, slapped the 33's on at 750 miles so this is all I really know. I'm not super stoked about the fuel mileage but that is not why I bought my Jeep. I have a Civic that I commute 100 mile round trip to work (37 mpg's). Fuel mileage aside I am extremely happy with my Jeep. I'm sure my mileage will suffer with future mods so I guess I should be happy with 15.8 highway (14ish around town).

Just notice you are running a Rubi, I'm sure that will make a little difference between yours and mine.

Last edited by flatattack; 12-28-2011 at 06:40 PM.
Old 12-28-2011, 06:37 PM
  #15  
JK Freak
 
Zombie Hunter's Avatar
 
Join Date: Mar 2011
Location: Linden, VA
Posts: 522
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by trippnk
I have an auto, run my tires at 35 psi, and the drive was a mix of hills and flats. As for the procal, I used my gps and my speed is within 1mph so my computer is reading pretty close. Only thing it might do is fix my shift points for the larger tires. Oh, my rpm's were just above the Eco at like 2650ish I think.
RPM's just above 2650

At what speed and gear?

My '10 with 295/70-17 runs 2100 rpm's at 70mph.

Last edited by Zombie Hunter; 12-28-2011 at 06:41 PM.
Old 12-28-2011, 06:40 PM
  #16  
JK Enthusiast
 
YETI-09's Avatar
 
Join Date: Aug 2010
Location: Kemah, TX
Posts: 350
Likes: 0
Received 2 Likes on 2 Posts
Default

I have a 6 speed with stock gears and 35" tires and I get 18 highway the wife gets 16-17 highway stock auto with rubi tires on her sport with the banks set up
Old 12-28-2011, 06:43 PM
  #17  
JK Enthusiast
 
nateb's Avatar
 
Join Date: Nov 2011
Location: upper marlboro, maryland
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by titn31
Almost all of the MPG threads have mileage that varies widely. I traded in my truck for the jeep because of the increase in MPG. My expectations were around 15 MPG, compared to the 10 i was getting, and so far the panel indicator says between 19-21 MPG with mixed driving. Actual calculated mileage was about 18.5 for my first tank and I am completely stock. My guess is the guys on here will say check your tire pressure, slow down, and try a tuner. I would really like to know why it is so inconsistent even for stock jeeps. Gears maybe, I have 4.10's w/ a 6spd. What about you?
HMMM, im also located in maryland and i see anywhere from 19-21 MPG as well???
Old 12-28-2011, 06:45 PM
  #18  
JK Newbie
Thread Starter
 
trippnk's Avatar
 
Join Date: Mar 2011
Location: Charleston, SC
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Zombie Hunter

RPM's just above 2650

At what speed and gear?

My '10 with 295/70-17 runs 2100 rpm's at 70mph.
It's top gear in the auto, and with my larger tires the rpms are lower than stock at same speed.
Old 12-28-2011, 06:52 PM
  #19  
JK Enthusiast
 
titn31's Avatar
 
Join Date: Dec 2011
Location: Aberdeen, MD
Posts: 110
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by nateb
HMMM, im also located in maryland and i see anywhere from 19-21 MPG as well???
Must be the gas.. Too bad it stays overpriced for 3 weeks out of the month.
Old 12-28-2011, 07:15 PM
  #20  
JK Newbie
 
Jeep702's Avatar
 
Join Date: Mar 2011
Location: Las Vegas, NV
Posts: 47
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm happy if I get 13 MPG with 33"s....


Quick Reply: So disappointed in my mpg even with low expectations!



All times are GMT -8. The time now is 02:41 PM.