Once again you post something on someone else's thread that has nothing to do with the topic. I offered information regarding the topic, troll.

 

still haven't had much in the way of real answers here guys

 

Thought I gave a little info, pretty much the mods and the vehicle will never get 2-4mpg over what you are currently getting. Don't expect the "engine break in" either. In my opinion..

 

x2.

Jknit, everything in this thread pretty well sums it up. Lifts, tires, etc. wipe out mpg's big time. Drive carefully and you'll get around 18+ or -. The second you mash that pedal, your mpg's get wiped out big time. 18mpg's is achieved by driving very conservatively.

Oh, and no mod will improve your mpg's except for the flashpaq, apparently. There's controversy about tbs's, intakes, exhausts, etc., but it seems as though there's no controversy on the flashpaq. It seems everyone who has one agrees that there is a noticeable gain in mpg's with it.

 

36 miles to the gallon-------OK now that I got your attention, 2008 Sahara stock--the display tells me I average about 19.5 to 21.5 combinmed city and highway and I drive like an old lady all the time.

 

I can tell you that I upgraded all of my fluids to Royal Purple it had a much larger impact on power and MPG compared to the MBRP cat-back. Many may point out that the Synchromax doesn't comply by the Chrysler standard for the manual transmission fluid and transfer case (ATF+4) fluid. But I can say that I have been running it without a problem for over 20K miles at this point and when I swapped all of my fluids from stock fluids to royal purple (6-speed and transfer case to Sychromax, front and rear differential to Royal Purple 75W-90 and the engine oil to their synthetic 5W-20) I picked up 1-2 mpg and definitely some usable low RPM (1000-2000 RPM) torque/power.

I have a hill I had to climb on a regular basis. Before the swap I had to downshift to 4th gear to climb it to keep the RPMs over 1000. After the swap to all RP fluids, I was able to leave it in 5th all the way to the top of the hill and the RPMs didn't drop below ~1100 RPM.

HOWEVER, I won't advise against the MBRP exhaust. Though I didn't see any noticeable MPG increase the sound is -definitely- worth it. It is a nice noticeable low rumble but isn't loud enough that it gets annoying or that the neighbors complain. Plus I had a slow rear-end collision a little while ago and the other car just slid under the back of the Jeep and didn't hit the exhaust or anything because the off-road version tucked everything up out of the way (and paid for itself by not needing replaced!)

Hope this helps!

 

Guess I'm a hammerhead then. Since I started keeping track back in February, I've averaged 21.1 mpg over 22 fill-ups covering about 8300 miles.

My Jeep is not lifted.

 

With 35" Toyo's, 4.88 Gears, and Superchip after 2550 miles my display says:

99.18