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Topic Review (Newest First)
06-09-2013 10:14 PM
DirtyRob Re-gearing for bigger tires is the best thing you can do after making sure everything is running properly. No matter which motor you have
06-09-2013 09:19 PM
DasfieldmarshelsYJ I get about 18 city 20hwy 2.5 auto 3in lift on 31s
06-09-2013 06:45 PM
Glenn1996 So I get about 170 miles on 12 gallons (about 14mpg). I just did a tune up (plugs, wires, cap, rotor) as well as changing the oil in the engine, tranny, front and rear differentials. (We couldn't get the transfer case open to check), and the driver side engine mount. What else should I check do to get better gas mileage.

I'm also putting Lucas in the gas. I used Mobile 1 5/30 synthetic with Lucas synthetic oil stabilizer and gear oil with Lucas oil stabilizer in tranny and differentials. Does anybody have any better suggestions?
06-12-2012 05:17 PM
DirtyRob Thw 2.5 gets better mileage off road I have found, but my 90 TBI is no better on gas driving around on the road than my 4.0's do, which is about 15-16 mpg. I have a 90 YJ welded rear spiders, 33" Dunlop Mudrovers, on stock 4.10 gears.
With this set-up it is a dog unless it is in 4 low. In 4 low it does really great, and will go anywhere, and is better on fuel while wheeling. This works out great for me as I do not drive it much on the highway
06-12-2012 04:32 PM
stykthyn
Quote:
Originally Posted by CollinJ
Okay I was only slightly exaggerating.
Finish that 302 swap and you'll be doing wheelies and getting 20mpg
06-12-2012 04:26 PM
CollinJ Okay I was only slightly exaggerating.
06-12-2012 02:59 PM
Xpress
Quote:
Originally Posted by CollinJ View Post
That's really good mpg for a 2.5L! They are typically horrible due to the fact that you have to 'pedal to the metal' wherever you go.
You don't have to put the peddle to the metal just to get anywhere with the 2.5L. Maybe with some horribly oversized tires and stock gearing, or a horribly out of shape engine, but otherwise it cruises around town and on the highways perfectly fine. It's happy at 3000rpm and 70mph. I only drop the peddle if I need to pass someone.
06-12-2012 01:30 PM
s_man692000 32" M/T tires, no regearing 20 mpg all day long ,e-fan ,and accel ignition and e-3 plugs have all contributed .I do not drive light footed by any means .Keeping fresh quality lube in the axels and tranny /t-case will also help no matter what engine you are running.20 mpg really isnt bad for a vehicle with the earodynamics of a shoebox IMO .
06-12-2012 01:24 PM
s_man692000
Quote:
Originally Posted by Dempsey View Post
A toyota prius wins.

But you all beat me, my cj gets 11 mpg.
Ahhh but do you really win driving a Prius ?
06-12-2012 12:02 PM
bangingears last tank 16.4 mpg all around town in horrible orange county traffic...
06-12-2012 07:35 AM
stykthyn I consistently get 18-20. With the top on I can easily hit 80 on the interstate as well. With the bikini top acting like a parachute I get 14-15 at hwy speed.
06-12-2012 07:15 AM
CollinJ That's really good mpg for a 2.5L! They are typically horrible due to the fact that you have to 'pedal to the metal' wherever you go.
06-11-2012 07:32 PM
yj95wrangler '95 2.5l 4cy 5 spd manual, 33x12.50 super swampers, re geared diffs. 18-19mpg everytime
06-11-2012 07:21 PM
Xpress Did more math, last tank I was getting 20mpg average. 100 miles on 5 gallons of gas.

(well it's more like 98.9 miles on ~5 gallons)
06-11-2012 06:54 PM
jeep30 I like the 2.5 actually, sounds like a German tank at idle. lol - Decent on gas.
06-04-2012 09:22 PM
loganInaYj
Quote:
Originally Posted by NAA

Haven't found any rusty spots worth mentioning yet The only issues with it, are the valve cover gasket leaks, and my idle randomly drops to low to keep it running when coming to stop light,etc. But, it runs good otherwise.
That's good. Yeah jeeps are notorious for leaky valve covers. Mine leaks also. My jeep also idles low every now and then
06-04-2012 07:08 PM
NAA
Quote:
Originally Posted by loganInaYj View Post
That's awesome. The damage isn't a big deal. You can fix that for cheap. Other than that damage from what I can see it looks to be in good condition! How's the rust issue ? Not to sure what state your in?


Haven't found any rusty spots worth mentioning yet The only issues with it, are the valve cover gasket leaks, and my idle randomly drops to low to keep it running when coming to stop light,etc. But, it runs good otherwise.
06-04-2012 11:30 AM
loganInaYj Haha also kinda funny to me. My grandfather gave me my jeep as a graduation present
06-04-2012 11:28 AM
loganInaYj That's awesome. The damage isn't a big deal. You can fix that for cheap. Other than that damage from what I can see it looks to be in good condition! How's the rust issue ? Not to sure what state your in?
06-04-2012 03:03 AM
NAA So the story on this Jeep is... I bought this from a grandson that said his grandfather bought this Jeep when he won $250,000 in a lottery. He bought this Jeep plus for his 80 acre ranch as a ranch truck. He hardly drove it and he died 3yrs ago and left it to his grandson, which has been driving it back and forth to work since then. He decided to buy a newer toyota truck so here I am. What's funny is his grandfathers ranch is 5hrs south of here, and I just bought Mt. property down there. Small world.
06-04-2012 02:55 AM
NAA
Here it is. Just got it last night.


This one shows the damage it received after his neighbor backed into it
06-04-2012 12:08 AM
bangingears congrats!
06-03-2012 11:33 PM
NAA Ok, Ok. So I didn't get that green jeep because just before I left someone posted up a Red 1989 Wrangler Hardtop 4.2 5spd 102,000 original miles! 1 owner. Its not in perfect condition, but I got it for $3,400 and it came with brand new 30x9.5x15 Maxis Bighorn Tires and brand new wheels from Les Schwab, and brand new les schwab real tire chains. It runs good too. The hard top sold me though because we get lots of rain here in Oregon, and I only had $3,500 to spend. I'll get pictures up later tonight.
06-03-2012 10:28 PM
Tomy2tone01 I getgreat mileage. Maybe 30 to 35mpg. Always watch how many miles i drive.

Damn I forgot to subtract the miles it was pulled behind the motorhome.

Crap.........

No wonder why I get great mpg
06-03-2012 10:19 PM
BDK Wow, you can tell its summer. Heep prices have jumped! $4000 for a stock 4banger!!!
06-03-2012 08:29 PM
kdub I swaped from 4 to 6 cyl and I get the same milage
06-03-2012 07:53 PM
Xpress
Quote:
Originally Posted by P0234 View Post
If you live in a hilly area, definitely get the 4.0. I've had both, the 4.0 gets maybe 1 less mpg on average. The 2.5 sounds like its working too hard past 70, though it will go to about 90ish or more. The 4.0 feels comfy at 75. On the trail, I prefer the 2.5, not sure I can quantify why though....
I will say the 4.0 happily cruises at 75mph and 1900rpm. Stock tire size though. Hard to beat that, most 6 cylinder vehicles move along at 2400rpm or so.

I like the 2.5L on the trails, it doesn't have an overpoweringly strong amount of torque down low so it doesn't spin the wheels. Which is important to keep traction. Plus it putts along perfectly fine.
06-03-2012 03:54 PM
P0234 If you live in a hilly area, definitely get the 4.0. I've had both, the 4.0 gets maybe 1 less mpg on average. The 2.5 sounds like its working too hard past 70, though it will go to about 90ish or more. The 4.0 feels comfy at 75. On the trail, I prefer the 2.5, not sure I can quantify why though....
06-03-2012 09:58 AM
stykthyn I would honestly opt for the 6. gas mileage is pretty much the same and the 6 has better running gear.
06-03-2012 09:39 AM
99jeeper MY OPINION ONLY, i think that the six would do better because of less labor to move ur rig down the road.
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