Brand new wrangler- MPG break in?
03-26-2018, 01:29 PM
#1
JK Newbie
Thread Starter
Join Date: Mar 2018
Location: Hopatcong NJ
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Brand new wrangler- MPG break in?
okay- it’s been a while since I’ve even driven a vehicle fresh from the factory with only less than 20 miles on it.
I got a pretty sweet deal on a JK 2 door Willy’s W in PA ( I’m in NJ) The dealership I purchased it from was decent enough to fill it completely for my trip home ( nearly 2 hours/ 90 miles away)
i noted that on my first tank of gas , I was only getting maybe 16.5 MPG’s on my initial trip back home from the dealership. I used the dashboard system to show me the average.
Today, I had to actually drive all the way back there because of a technicality with my bank and the down payment. I filled it up- virtually the same trip ( x 2 because the first time I delivered my trade) and I’m getting 18.5 MPG
now, I realize it’s a wrangler- I’m not expecting the 25 mpg’s my Dodge Caliber got, but is this normal for a brand new vehicle ?
I got a pretty sweet deal on a JK 2 door Willy’s W in PA ( I’m in NJ) The dealership I purchased it from was decent enough to fill it completely for my trip home ( nearly 2 hours/ 90 miles away)
i noted that on my first tank of gas , I was only getting maybe 16.5 MPG’s on my initial trip back home from the dealership. I used the dashboard system to show me the average.
Today, I had to actually drive all the way back there because of a technicality with my bank and the down payment. I filled it up- virtually the same trip ( x 2 because the first time I delivered my trade) and I’m getting 18.5 MPG
now, I realize it’s a wrangler- I’m not expecting the 25 mpg’s my Dodge Caliber got, but is this normal for a brand new vehicle ?
03-26-2018, 01:41 PM
#2
JK Enthusiast
Since the JK is a block on wheels, differences in air temperature, vehicle speed and traffic congestion have pretty big impacts on your fuel economy.
I don't know if its normal for all new vehicles, but it is very normal for a Wrangler.
I don't know if its normal for all new vehicles, but it is very normal for a Wrangler.
03-26-2018, 03:18 PM
#4
JK Super Freak
An insane amount of factors come into play. Elevation, wind, topography, how heavy your foot is, how heavy the traffic is, are you running 65, or 75?
I know people who never got more than 16.5 out of their stock 3.6, as compared to when I lived on the edge of Houston, just far enough out to have almost no traffic, and flat ground at sea level and all the speed limits were around 50, I could average 22.
I know people who never got more than 16.5 out of their stock 3.6, as compared to when I lived on the edge of Houston, just far enough out to have almost no traffic, and flat ground at sea level and all the speed limits were around 50, I could average 22.
03-26-2018, 06:30 PM
#5
JK Junkie
Wind is a big factor. Temperature is also. I'll be posting my data soon. I have a 2012 jku. Today I crossed the 100,000 mile mark. I have tracked actual mpg on every single tank of gas from mile zero to mile 100,000. There is no break in period for mpg. Different brands of oil make no difference. New vs old air filter makes no difference. Doing fluid changes to manual trans and transfer case and differentials makes no difference. Get the point? Driving style. Weight in vehicle. Towing. Temperature. Wind conditions. These are the things that make a difference. In the next day or two I'll post my 100,000 miles worth of mpg data. I average about 17.4. It's higher in summer and lower in winter.
03-26-2018, 07:55 PM
#6
In addition to what has already been mentioned, I wouldn't trust the average on that on-board computer. Calculate it out yourself each time you fill up if you want to get a true average. I would see a 1-4 MPG variation in my average MPG depending on whether I did a wheeling trip that tank, or mostly highway vs. stop n' go traffic, etc. With a 2.5" lift on 35's based out of San Diego, for the driving I did, I averaged just over 15 MPGs generally speaking. Got just under 15 MPG when I went to 37s.
I stopped worrying about it when I realized how shitty it was. Decided it wasn't worth it to stress about it. The way gas prices were bouncing around in So Cal at the time, there was no telling how much I'd end up paying at the pump each week.
I stopped worrying about it when I realized how shitty it was. Decided it wasn't worth it to stress about it. The way gas prices were bouncing around in So Cal at the time, there was no telling how much I'd end up paying at the pump each week.
Trending Topics
03-29-2018, 05:30 AM
#8
JK Junkie
In my calculations at 95,000 miles, my CPU vs hand Calc shows CPU on average is 0.4mpg higher. That's 342 data points averaged. STD deviation is 0.609.
Last edited by rob_engineer; 03-29-2018 at 08:34 AM.
03-29-2018, 08:49 PM
#9
LOL...
I wonder if the computer improves it's accuracy over time. I sold my Jeep way before it ever got to 95k miles.
03-30-2018, 05:25 AM
#10
JK Junkie
Originally Posted by smittycm
LOL...
I wonder if the computer improves it's accuracy over time. I sold my Jeep way before it ever got to 95k miles.