What kind of MPG do you guys get?

ZJ_COWBOY · 09-27-2005, 09:26 AM

I own a ZJ so Im kinda out of my comfort place being in the YJ forums. But what kind of milage do you guy regually recieve? I4 and I6 included. Please add drivetrain mods if they affect the MPG. Thanks!

wolf3902 · 09-27-2005, 09:59 AM

17-19 MPG here.

93YJfalcon · 09-27-2005, 10:03 AM

I get about 14 MPG (lead foot!). See sig for mods, etc. I've heard that you can increase your MPG up to 15% by adding 2 oz of acetone per 10 gallons of gasoline to your tank.

http://www.pureenergysystems.com/news/2005/03/17/6900069_Acetone/

I've tried it. I think it maybe helped by like adding one or two more MPG. Haven't done the math yet to see if it is worth $6 per quart.

RCHavok797 · 09-27-2005, 10:14 AM

I get between 15-17 mpg with my 91 4.0L.

DeJeep · 09-27-2005, 10:15 AM

I get around 18MPG city and 22MPG highway 93 4.0 HO

bretm · 09-27-2005, 10:35 AM

4.2L - 12.5mpg combined, about 50/50 btw city and highway. Yes, it sucks.

**BackRoadJPin** · 09-27-2005, 10:43 AM

my day consists of city/hghwy driving and I average 18-20. I have not burned a full tank on just city, and or highway so I can not give you city only and highway only numbers.

JEEPINWI · 09-27-2005, 11:27 AM

I get 18-20MPG with mostly highway driving from my 93 YJ with 4.0L/5 speed. I have a K&N filter, 60mm throttle body, and a ported cylinder head.

Duck Doctor · 09-27-2005, 11:34 AM

I get approximately 13 MPG on an 89 YJ with the I-6. I have 4.56 gears and 32's, which is part of the problem.

91GTA350 · 09-27-2005, 12:13 PM

The only test i have is that for 25 miles in the city, and 90 hwy....19.75mpg
I think thats pretty good for an old wornout 4.2L with a factory carb that isnt tuned properly. (i was idling at about 1300RPM).

do a search, i think there was a thread like this about a month maybe two ago

JaySpencer66 · 09-27-2005, 02:22 PM

I think I get 18-22 MPG on my 91 4.0 Automatic. It's pretty much stock, but I recently put in a cone filter, and have semi synthetic oil, new cap, roter, wires, Bosch 2 plugs, and a new serpentine belt. This weekend I am changing out the stock radiator, thermostat, water pump, and all the hoses for a three core after market replacement and higher end aftermarket pump.

I also have a soft top on it as well.

Tshark299 · 09-27-2005, 04:23 PM

Used to get about 16-17mpg but the last couple tanks have been more like 12-15... gotta see whats up with that.

ginsy · 09-27-2005, 04:51 PM

12 mpg is what im at

richie46 · 09-27-2005, 05:31 PM

21.5 - 22.5 mpg in all around driving.

pyro9862 · 09-27-2005, 05:36 PM

Doesn't I don't want to know count?

09-27-2005, 09:59 AM	#2
wolf3902 Registered User Join Date: May 2005 Location: NE Ohio Posts: 1,138 Profile Gallery Classifieds My Jeeps	17-19 MPG here. __________________ '93 YJ 2.5 Jasper; 5 speed All stock, waiting to be reborn. 6/19/05 ...2" BDS suspension lift...the rebirth has begun!!! ONE NATION, UNDER G O D Support It, or Leave It!

09-27-2005, 10:35 AM	#6
bretm Registered User Join Date: Jun 2005 Location: northern NJ Posts: 282 Profile Gallery Classifieds My Jeeps	4.2L - 12.5mpg combined, about 50/50 btw city and highway. Yes, it sucks. __________________ Black '88YJ 4.2L 2.5" Skyjacker, 32x11.5s, 4.11s, Weber, HEI, etc.

09-27-2005, 11:27 AM	#8
JEEPINWI Registered User Join Date: Jan 2003 Location: Eau Claire, WI Posts: 621 Profile Gallery Classifieds My Jeeps	I get 18-20MPG with mostly highway driving from my 93 YJ with 4.0L/5 speed. I have a K&N filter, 60mm throttle body, and a ported cylinder head. __________________ Brian- 99 XJ Cherokee, 2 door, 4.6L Stroker, 5 speed, 4x4, 8.25" rear, 3.07 gears

09-27-2005, 12:13 PM	#10
91GTA350 Registered User Join Date: Mar 2005 Location: Purdue Posts: 329 Profile Gallery Classifieds My Jeeps	The only test i have is that for 25 miles in the city, and 90 hwy....19.75mpg I think thats pretty good for an old wornout 4.2L with a factory carb that isnt tuned properly. (i was idling at about 1300RPM). do a search, i think there was a thread like this about a month maybe two ago __________________ -89 sahara 258: [U]HAD[/U] a peugot and a d35 5/15/05 - took ownership and started money pit 9/17/05 - found a 3.5' deep water hole 2/18/06 - destroyed spiders in d35 4.2/AX-15/NP-231/SYE/30/8.8/3.55/RE 2.5"/31"

09-27-2005, 04:51 PM	#13
ginsy Registered User Join Date: Jan 2005 Location: Burlington, CT Posts: 471 Profile Gallery Classifieds My Jeeps	12 mpg is what im at __________________ RED JEEP CLUB # 295 1990 yj 4.2L-5spd 3.5"black diamond lift 1.5"shackle lift 33" kumho venture m/t

09-27-2005, 10:15 AM	#5
DeJeep Member Join Date: Jun 2003 Location: Utah Posts: 100 Profile Gallery Classifieds My Jeeps	I get around 18MPG city and 22MPG highway 93 4.0 HO

09-27-2005, 05:36 PM	#15
pyro9862 Registered User Join Date: Mar 2004 Location: Long Island, NY Posts: 1,563 Profile Gallery Classifieds My Jeeps	Doesn't I don't want to know count?