Gas Mileage Improvement

**PaxtonTransAm** · 08-04-2004, 08:47 AM

I haven’t had this thing long or there would be more mods. The wife and I don’t see eye to eye on the need for a lift, but anyway I knew I had to work on the gas mileage. My first tank of gas yielded about 203 miles. After new tires (irrelevant) a pace-setter air intake, an accell super coil, new cap, rotor, plugs and wires (ignition components weren't bad) and a 3-chamber flowmaster it got 232 plus it sounded and ran better.

Just thought Id post this.

red99tj · 08-04-2004, 10:17 AM

yea 203 is pretty bad, im getting around 250+ with mine (4.0)

NakedJeeper · 08-04-2004, 10:33 AM

I get 13-15 mpg in my '98 (6 cyl). I've been tracking it for about a year including the brand of gas and I find I getter better mileage from Shell and Chevon and worse from Unocal (76).

**RedRubiconLJ** · 08-04-2004, 10:54 AM

I have a 4 banger and I only get about 200 on a tank.

**Jasonoff** · 08-04-2004, 10:58 AM

Damn... i get 280-310 in my 02 4.0

vpogv · 08-04-2004, 11:25 AM

Quote:

Originally Posted by Silver4banger

I have a 4 banger and I only get about 200 on a tank.

Same here. Depends on the size of the tank though. There are 15gal and 18gal (atleast I think those are the right sizes). I do plan on doing a "tune-up" soon to try and get better mileage. First is checking the timing though.

**Jay-Mac** · 08-04-2004, 11:39 AM

20.5mpg on recent road trip, mostly highway little traffic, 3.07's 30inch tires, i usually get about 16-17...and i drive aggressively at times...

Chap · 08-04-2004, 11:45 AM

180 miles and the fuel light came on today. Filled up with 14.4 gallons. Between the Jeep and my Ram I am visiting the gas pumps quite often. At $2.02 a gallon here in San Diego (on base) it's getting kind of expensive

limecolbyjack · 08-04-2004, 02:06 PM

180-195 miles on a tank for my 04 X with 31's. i think this is real bad. i got 21 in my 6 cyl in my ss s-10. -chris

**PaxtonTransAm** · 08-04-2004, 04:43 PM

Quote:

Originally Posted by limecolbyjack

180-195 miles on a tank for my 04 X with 31's. i think this is real bad. i got 21 in my 6 cyl in my ss s-10. -chris

I don't know. I should mention that I get my mileage with the A/C on.

A little off topic. I love those ss s10s, they are bad for intake manifold issues ie; bolts backing out, vacuum issues, cracking. I like the fuel injection on them, they last forever.

MikeTheVike · 08-04-2004, 06:31 PM

Quote:

Originally Posted by Jasonoff

Damn... i get 280-310 in my 02 4.0

I get about the same. I try to shift right at 2k rpms or less. Thats with a mixtureof highway and city driving. Does an intake make an improvement? I don't really want it for the performance aspect. I don't really trust the filters to catch everything. Oh yea, will 31" tires decrease mpg over 30"?

JeepCrawler_98 · 08-04-2004, 08:19 PM

I generally squeeze about 20mpg calculated with stock gears and 33"s, for engine mods I have a Taurus fan, clamp-on K&N filter on the intake, and a high flow muffler (which I kept quiet) - dont know how that compares to the tank size though; I fill it up when it gets between 1/4 and 1/2 and usually only fit like 6 gallons in. TJ's sender is real unstable. The aftermarket fuel level gauge I have in my custom dash updates much faster than the factory kind, and it jumps around like crazy.

JFiorentino · 08-04-2004, 09:01 PM

My 2005 X with Automatic and 4.0L has never got more than 180 miles per tank. It's been as low as 150 miles before my gas light comes on. It's been to the dealer a few times, and they changed the shift points but there was no improvement.

My buddy kids me that someone must be stealing gas while I'm parked at night.

John

**Rocky529** · 08-04-2004, 09:48 PM

PaxtonTransAm, HOLLA IF YA HEAR ME!

**julietkilo** · 08-04-2004, 10:50 PM

I see about 20 mpg and have seen as high as 23 mpg. Go here to see my gas mileage page about new jeeps.

http://thefertigs.com/jeep/mileage.html

08-04-2004, 10:58 AM	#5
Jasonoff Member Join Date: Jun 2004 Location: Barrie, ON, Canada Posts: 352 Profile Gallery Classifieds My Jeeps	Damn... i get 280-310 in my 02 4.0 __________________ [B]2002 TJ Sahara ([color=white]White[/color])[/b] Light Guards & Flowmaster 40 Series Delta Flow...5spd [B]2000 Honda S2000 ([color=gray]Silverstone[/color])[/B] TJ took it's place... [color=white]White Jeep Club Member #706[/color]

08-04-2004, 11:39 AM	#7
Jay-Mac Senior Member Join Date: Feb 2004 Location: Wallingford, CT Posts: 525 Profile Gallery Classifieds My Jeeps	20.5mpg on recent road trip, mostly highway little traffic, 3.07's 30inch tires, i usually get about 16-17...and i drive aggressively at times... __________________ 2000 Sport Amber Fire, 5 Spd, A/C, dual tops.... Where has all the money gone....... REBB and rubi springs chopped tube bumpers warn m8000 optima yellow top 31X10.5 BFG'S MT'S Near Future Mods: Garvin wilderness rack and basket Arb Snorkel Safari/duster/windjammer combo sealed? Famous Last Words "Hold onto your panties!.....SH*T"

08-04-2004, 11:45 AM	#8
Chap Registered User Join Date: Mar 2004 Location: San Diego Posts: 23 Profile Gallery Classifieds My Jeeps	180 miles and the fuel light came on today. Filled up with 14.4 gallons. Between the Jeep and my Ram I am visiting the gas pumps quite often. At $2.02 a gallon here in San Diego (on base) it's getting kind of expensive __________________ [b][i]Chap[/i] [color=red]Semper Fi[/color] [color=green]'02 Ram 1500[/color] [color=yellow]'04 TJ[/color] sold[/b]

08-04-2004, 08:19 PM	#12
JeepCrawler_98 Registered User Join Date: Feb 2004 Location: Tucson, AZ Posts: 860 Profile Gallery Classifieds My Jeeps	I generally squeeze about 20mpg calculated with stock gears and 33"s, for engine mods I have a Taurus fan, clamp-on K&N filter on the intake, and a high flow muffler (which I kept quiet) - dont know how that compares to the tank size though; I fill it up when it gets between 1/4 and 1/2 and usually only fit like 6 gallons in. TJ's sender is real unstable. The aftermarket fuel level gauge I have in my custom dash updates much faster than the factory kind, and it jumps around like crazy. __________________ [b]New kid on the block!: [url=http://www.wranglerforum.com]WranglerForum[/url][/b]

08-04-2004, 02:06 PM	#9
limecolbyjack Registered User Join Date: Apr 2004 Posts: 505 Profile Gallery Classifieds My Jeeps	180-195 miles on a tank for my 04 X with 31's. i think this is real bad. i got 21 in my 6 cyl in my ss s-10. -chris