94 with 262,000 on it and runs great.

 

422k is still impressive as heck. I doubt if mine will get there.

 

Just the other day 1998 150,000

 

97 country xj 4.0 just about to turn over to 200,000. The engine still runs great.

 

just keep your oil clean, if you cant change it when you need to change the filter and add some rislone oil detrtgent. thats all i do other than minor to moderate upkeep. YOU CAN DO IT

 

So my Dad's TJ practically got a lemon motor for only seeing 320k! (AX-15, NP231, and D35 have never had anything done, including the clutch...

 

My uncle ha a 97 GC. When he bought it it had 175,000 on it. When he traded it in it had over 400,000 on it and still ran strong. Mine is a 96 xj with 244,000.

 

88' has 224,500 and still running strong. my friends laugh and make jokes about it until they see it and compare to their newer cars that struggle to get past 140k

 

1995 Xj 5 speed 376,472 and still pushing my 33's up and down these Colorado trails! Oh and Im in high school and the 4.0 puts up fine with my lead foot lol

 

haha im a highschooler. and I beat my old 96 to hell. 12k without fluid change and im pretty sure theres a dent in the floor below the skinny pedal. but that was when I was 16 and 17. now Im 18 and more responsible and I have a real nice 99 that I take care real well. but i do totally agree if it was owned by a first time driver in highschool, and it's a jeep, civic, or altima, chances are, they beat the hell outa it.

 

I got a 2004 wj...amy body had any trouble with newer model 4.0 engines?

 

My 1995 has 185,500. I bought it 6 weeks ago w 183000, and the main reason i bought it is my buddy John was a Jeep mechanic for years, and was AMAZED at how good it sounded.
And i went w a cherokee cuz my ex gf's 1993 Base XJ has 255,000 on it, and she beats the crap out of it, and does NOT keep up on oil changes. no floors in that XJ, but its still runnin strong. It's faster than my 95. I think because of the light weight from no floors, no rear def, no power anything, no rear wiper, no rockers, and consoleless interior! lol, either way, these things go for a while. especially if they were kept stock for a long time, like my 95.

 

The AMC straight 6 really hasnt changed since the 60's, they just added computers. The reason why inline 6's are so reliable is that they are inherently balanced which means the bearings last longer.

 

i have over 250,000 on mine

 

mine has 333,000 and still going strong but i keep to a stricked maintenance schedule as with all my rides.