SameFormer police officer here. Still drive like one.
I’m also at exactly 15.8 mpg lol.I just finished my second tank. Both manual calculation and on-board computer registered 15.8 MPG. I'm pretty light on the gas, so i'm surprised to hear someone got 18.5. I have stock Rubicon.
Wanted to check back in - get around 19.5 in warm weather, currently sitting at 18.7 in the winter. Best I got was a full tank NY to VA and got 21mpg. Usually 72-74mph on the highway, above that and fuel mileage rapidly drops. Daily commute is a mix of highway and backroads. 18k miles so far. Tracks almost exactly 1mpg below what my JLUR got. I have a loaded rubi auto, so pretty much worst case for a stock JTR.18.5 so far in my rubi. Jlur got 20.5. I'll give it a full tank or two to see where it ends up.
I have used the remote start a few times before leaving work and I noticed it dip a bit. Makes sense. I’ve only had mine for 6 days, so the sample size is small.JTRLE. During the cold spell we had my way, the MPG dipped into the 12.5-13 MPG range but I always let the vehicle warm up at least 5 minutes, each time I start.
My exact situation and thoughts as well. I am overly focused on MPG in my mostly stock Rubicon, and average 15.8 - 16.1 in mostly mixed / suburban-ish driving.16 MPG on stock Rubicon with the AT tires with lots of highway miles. The truck seems to eat into gas once you go over 70MPH and when you maintain that speed going uphill with the ACC. I drive it very laid back so no clue how folks are getting more than 16
The MPG is all over the place, but I'm getting 16.7MPG as of this morning. Rubicon A/T, 35" tires, leveled but no lift, 2300 miles, mixture of hwy and city. My first tankful showed 18.4, I thought "not to bad" then it started dropping. Really noticed the drop after leveling the front end. Guess I exposed more of the brick to the wind.Winter temps, mostly in town, Gladiator weighs almost 6,000lbs now, averaging around 13.5-14 MPG. Spring is on the way and I'm putting her on a diet in a month or so, hoping to shed around 300 + lbs!