Just wanted to get some input, since I think my mpg is far below where it should be for a 2013 JKUR automatic with a 3.6 Pentastar. I average about 11.5 mpg, mixed highway and city driving, according to the dash readout. The potential mods affecting this are:
37" Nitto Trail Grapplers
17" Spyderlock beadlocks
EVO 1/4 Pounder w/ stinger
EVO rock skins and rear tire carrier
LoD sliders
4.10 gears
ProCal
EVO Double D long arm kit
JE Reel 1350 front drive shaft
Those are the only mods I can think of that add significant extra weight or would change driving dynamics. I know that's a lot of weight, but I was running 35" GY kevlars on my 2010 with similar mods (minus the bumpers) and getting 13.5 average mpg!
Any ideas...?
I have a friend here in town that told me he would average 11-13 MPG in his 2012 JKUR during his in town driving.
2012 JKUR automatic 4.10
37 Cooper Discovery SST tires
After market alloy wheels 17" (don't remember the specifics)
Tera Flex 3" LA lift
CBI offroad fab bumpers front and rear and sliders
AEV procal
Anyway I am assuming his JK had just about the same amount weight on it as yours, so your MPG doesn't sound abnormal to me with your setup. Weight and driving style (skinny pedal) has a huge effect on MPGs especially with stop and go driving. Your setup all be it probably some of the strongest, well designed, durable equipment for a JK rock crawler build, IHMO, cost a premium and I am not referring only to your initial investment but forever at the gas pump too. Oh yeah dont forget we are driving mini school buses as far as the frontal drag is concerned which really effects the MPGs at highway speeds.
I think you mentioned something about MPG on another of your jeeps with 37" Goodyears that got better MPG. I know pretty much any Goodyear tire wheel combo is going to weigh probably 10 plus pounds less than your current combo. Correct me if I am wrong but isn't it probably one of the heaviest combos around......Again some of the cost for durability.
