The Official "My Gas Mileage *****" Thread

[Bikeflyer]

My S-10(4.3, 4x4) got 22mpg on my commute(50/50) and my 05 Lib gets 19mpg. Kinda loss there but the lib gets 25.2 on highway cruise@65mph. 70mph it goes down to 21mpg.

 

[LibertyFever]

When I first had my 04 Liberty Sport the best mileage I could get was about 20MPG highway. Since then I put on a 2.5" OTT lift, LT245/75R16 AT KO tires & a roof basket with four Hella lamps & a spare tire. Even with the BCM programed for the LT245/75R16 tires I could get no better than 19MPG highway. That's about 230 miles per tank of fuel.

This past weekend before going on a trail run in the deep woods I took the roof basket off and put the spare tire back on the rear tailgate. Was I ever surprised at the improvement for my mileage. Now I'm getting 22MPG average highway, 355 miles per tank of fuel. I'm leaving the roof basket off until I absolutely need it.

 

[Dave]

When I first had my 04 Liberty Sport the best mileage I could get was about 20MPG highway. Since then I put on a 2.5" OTT lift, LT245/75R16 AT KO tires & a roof basket with four Hella lamps & a spare tire. Even with the BCM programed for the LT245/75R16 tires I could get no better than 19MPG highway. That's about 230 miles per tank of fuel.

This past weekend before going on a trail run in the deep woods I took the roof basket off and put the spare tire back on the rear tailgate. Was I ever surprised at the improvement for my mileage. Now I'm getting 22MPG average highway, 355 miles per tank of fuel. I'm leaving the roof basket off until I absolutely need it.

Sounds like the roof basket creates more drag than you would think.

Dave

 

[AlexKJ]

Worried about city mileage

Currently I'm getting roughly 10,5-11 miles per gallon (about 190 miles per tank) with 100% city driving... 40000 miles on the clock, skids, rock rails, farm jack, crossbars, compressor, shackles, tow strap and stuff...

In the other hand, in 100% highway I'm getting almost 23 miles per gallon (about 360 miles per tank)

Is it my only option going to 4.10? I want to going for 265/70R16 after an OME lift... with my current setup my city mileage will go down to 7 miles per gallon if I'm lucky...

 

[HoosierJeeper]

Yep...

 

[mag03kj]

im getting about 16 in city and about 23/24 on the hwy at 77 mph

 

[moparman]

From July 2006 to November 2008 over 64K miles, 18.22 mpg average overall. A low of 15.29, a high of 23.66, not bad.

 

[SETexasLibby]

just ran through my first tank in my 08 KK and I got 16.94 with about 65% highway and 35% city. Just trying to learn how to drive her. I plan to do new spark plugs, oil change and new air filter here soon.

 

[rockymountain]

Right now I'm getting 17.8 according to the EVIC and I just filled the tank and calculated 17.18 MPG. I'm pretty sure that's what I was getting when it only had 3000 miles on it. In the summer I'll get closer to and even exceed 18 MPG. I mostly drive on city streets, rarely but occasionally on the highway. I need to do highway mileage next trip I take cause I have no idea there.

 

[ThunderbirdJunkie]

11 mpg city and 14 hwy here

 

[eyehatetofu]

I get 14-15ish mpg with mixed driving. I got 20.1 mpg in Utah last week; I suppose it has to do with them not having crappy gas like back home in PHX.

 

[rockymountain]

Just got 18.1 all city driving. Maybe the 3-4 mile road I take to work and back at 50 MPH without stops helps. Besides that it is just normal city driving. Tires aired up to 35 lbs cold.

EVIC says 18.4. Its ********.

 

[ThunderbirdJunkie]

averaged 22 on the way up here to Kalamazoo last night. CC set between 70 and 75 the whole way.

 

[HoosierJeeper]

Still get 19 on the highway....max, going 70...

 

[Dave]

Got 20mpg going down to Florida and 19.5 coming back. Through the Carolinas and Georgia where the speed limit is 70 I had the cruise on 80 and sometimes 85. People were still passing me. They were running radar interference for me...


My custom KJ gas gauge............

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Dave

 

[yellocoyote]

21mpgs on 2 different tanks coming home from Missouri last weekend.

 

[jnaut]

My trend is generally down. I get around 14-16 for pure city driving. But on a long trip I can still touch 21-- even with the KJ loaded with equipment and bratty kids.

 

[kjweston]

12.3 city for me.. From Ft. Myers to Boca Raton averaged 13.4 highest ive seen it in about a year and a half. I'm ready to get more

 

[ThunderbirdJunkie]

Dude wtf is wrong with your Jeep?

 

[speedracerbubba]

12.3 city for me.. From Ft. Myers to Boca Raton averaged 13.4 highest ive seen it in about a year and a half. I'm ready to get more

Sounds like mine. I'm only getting 12.9 city and at the absolute best just over 16 highway with cruise set at 70 for the entire 3/4 tank with very little altitude changes. I cleaned the sensor in the intake cause it was real dirty and I also cleaned out the throttle body so we'll see if that helped.
All hoses look good, I stay on top of fluids, spark plugs have less than 8,000mi on em, air filter has 800mi on it, and I drive civilly. No check engine light, noises, rattles, rough running or anything like that.