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Old 04-19-2012, 02:12 AM   #31
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So how long on average do the 2.5 motors last before needing rebuild? I know there's a lot that can factor in, so I just was wanting a rough estimate Thanks

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Old 04-19-2012, 05:28 AM   #32
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So is there any reason to get the 4 banger if the sixes are getting the same?
Cost. Not of gas but of the Jeep itself. I've found the 4.0 runs about 10-15% more to buy regardless of the year.

I kick my own butt for not having a 4.0.

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Old 04-19-2012, 05:57 AM   #33
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So is there any of you that wouldn't trade there 2.5 for a 4.0?
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Old 04-19-2012, 06:34 AM   #34
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So is there any of you that wouldn't trade there 2.5 for a 4.0?
I'm seriously considering trading my 2.5L for a 5.7L
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Old 04-19-2012, 06:39 AM   #35
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Best I ever saw with my '98 2.5 was 20-21 highway. It was so gutless on the road (passing power was a joke) I got rid of it the next year.

My '99 with the 4.0 never cracked 18....
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Old 04-19-2012, 07:32 AM   #36
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yeah i am trading my 2.5 for at least a 4.3L. get the 4.0 and never look back
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Old 04-19-2012, 05:23 PM   #37
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So how long on average do the 2.5 motors last before needing rebuild? I know there's a lot that can factor in, so I just was wanting a rough estimate Thanks
Too many factors. Mine was abused and treated poorly, so therefore at 100,900 miles it is in need of a rebuild. Blowing oil mainly.. However it does run strong still. A well cared for 2.5L will last over 400,000 miles easily. Maybe go until the odometer rolls over.

As for trading it for a bigger engine... No, I will not. I'm too attached to this thing just to give it up. Too much sentimental value in it. However I wouldn't mind having another Jeep with a 4.0 in it. I would absolutely buy another 2.5L Jeep though, they're so readily available around here and for cheap that it's too hard NOT to buy one to build up. But a 4.0 first.
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Old 04-19-2012, 07:06 PM   #38
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Here's another question, I have seen quite of few pre 91 wranglers for cheaper than post 91 wranglers, is there a reason for this? I have 2 children one 5 and one 7 and I like the rollbar from the post 91 wranglers. Is there a cheap but safe way to modify the older ones, or put the newer rollbar in?
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Old 04-19-2012, 07:27 PM   #39
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Pre 91's are carbureted, the family roll bar swap is pretty straightforward. Lots of write ups rolling around.
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Old 04-20-2012, 01:26 AM   #40
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Here's another question, I have seen quite of few pre 91 wranglers for cheaper than post 91 wranglers, is there a reason for this? I have 2 children one 5 and one 7 and I like the rollbar from the post 91 wranglers. Is there a cheap but safe way to modify the older ones, or put the newer rollbar in?
Me and all my friends that have Jeeps don't have a family cage, and I know myself have had 5 and 6 yr olds in my jeep and they love it. Make sure they wear seat belts and just drive it like a jeep, not a corvette. They are perfectly safe and sound. Also, I believe if they are under a certain age/height/weight they need to be in some sort of a booster/car seat nowadays legally anyways. I just took the kids (my wife's cousins) down a country road, turned around and came back, so I wasn't too worried. Also, I drive a 95 YJ.
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Old 06-02-2012, 07:22 PM   #41
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Sorry its been awhile, my funds didn't come as quick as expected.I'm looking at a 1992 Wrangler 2.5 right now for $3,500obo it has a newer best top soft top and brand new 31's on decent wheels, it also is a Flat colored OD green that is a factory color, but is rare? He says it has 196,000 miles but he says the prior owner had the motor rebuilt. Probably true but who knows, he says it runs and drives perfect. I'm going up to check it out this evening. Is there anything I should check or watch out for besides rust? This is my first Wrangler and don't know them well, but I used to be a mechanic and know general problems to check for. Thanks Nathan,
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Old 06-02-2012, 08:37 PM   #42
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you may not believe this but i just did the math for my 2.5 and i averaged 20 mpg with mixed highway/city. I run BFG A/T 33's...
Really?! Nice I got that same setup...
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Old 06-02-2012, 09:07 PM   #43
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Update:

19mpg average with soft top on. 17.5mpg average with the soft top off and the bikini, soft windows, and wind breaker on. Which means i'm getting about 20 highway, and 16 city.
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Old 06-03-2012, 12:41 AM   #44
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my cousin has a 2.5 and i have a 4.0, honestly we fill up about the same amount of times even though i put in an extra 5 compared to him..lol
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Old 06-03-2012, 03:17 AM   #45
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ya

i would think the 2.5l by a little bit but it wont have near the power of the 4.0
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Old 06-03-2012, 09:33 AM   #46
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i would think the 2.5l by a little bit but it wont have near the power of the 4.0
No, but that's not the point now is it? I get about 110 miles on 4.8 gallons of gas (basically half a tank), which equates to around 220 miles on a full tank. If we do the math, if I can go 220 miles on 9.6 gallons of gas I'm getting an average of 22mpg.

Part of my commute IS downhill for several miles though...
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Old 06-03-2012, 09:39 AM   #47
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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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Old 06-03-2012, 09:58 AM   #48
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I would honestly opt for the 6. gas mileage is pretty much the same and the 6 has better running gear.
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Old 06-03-2012, 03:54 PM   #49
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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....
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Old 06-03-2012, 07:53 PM   #50
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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.
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Old 06-03-2012, 08:29 PM   #51
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I swaped from 4 to 6 cyl and I get the same milage
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Old 06-03-2012, 10:19 PM   #52
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Wow, you can tell its summer. Heep prices have jumped! $4000 for a stock 4banger!!!
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Old 06-03-2012, 10:28 PM   #53
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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
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Old 06-03-2012, 11:33 PM   #54
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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.
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Old 06-04-2012, 12:08 AM   #55
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congrats!
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Old 06-04-2012, 02:55 AM   #56
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Here it is. Just got it last night.


This one shows the damage it received after his neighbor backed into it
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Old 06-04-2012, 03:03 AM   #57
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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.
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Old 06-04-2012, 11:28 AM   #58
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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?
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Old 06-04-2012, 11:30 AM   #59
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Haha also kinda funny to me. My grandfather gave me my jeep as a graduation present
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Old 06-04-2012, 07:08 PM   #60
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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.

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