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Discussion Starter #1 (Edited)
Max Mileage On Original Engine

What is the max amount of mileage on an original XJ engine, you have heard of? (mine is a 99)

What is the best oil grade for me to use.
Sorry guys I'm a very novice mechanic..Thanks for your help!:cheers:
 

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there was a dude with 310,000 in another forum. i hear 200,000 quite often.
 

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I have had another XJ with 280,000 on it when I replaced the motor. Used straight 30wt Castrol in that one but the one I have now only got 210,000 before the blowby was too severe. Put a remanufactured motor in and have been using Mobil 1 since the breakin was complete. Used the remainder of my Castrol on the breakin. My third XJ only had 85,000 on it when I sold it to a hunting buddy.
 

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I have heard of upwards of 200k. Mine is a 99' also and I use Castrol GTX High mileage with an oversized oil filter. And mine just passed 123,000 and runs like a top. Doesn't even burn or leak any oil. Let me know if you want the part number for the oil filter, it's only like 7 bucks or so. :thumbsup:
 

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I have heard of upwards of 200k. Mine is a 99' also and I use Castrol GTX High mileage with an oversized oil filter. And mine just passed 123,000 and runs like a top. Doesn't even burn or leak any oil. Let me know if you want the part number for the oil filter, it's only like 7 bucks or so. :thumbsup:
I run the exact same oil/filter setup, great combination:cheers:
 

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Ok everybody, I dug up all the part numbers I have for a oversized oil filter. Just chose the brand you like.

BRAND: PART#:
AC Delco ----- PF2
Fram --------- PH8A
K&N Gold ----- HP-3001
Mobile1 ------ M1-301
Motorcraft --- FL1A
Napa Gold ---- 1515
Purolator ----- L30001
WIX ---------- 51515 <----One I use

Hope this helps! :thumbsup:
 

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There is a gentleman who lives near me who claims his cherokee has over 700,000 miles on it

edit: Thanks for those part numbers JeepGod :thumbsup:
 

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My uncles is a BONESTOCK all Original 92 Cherokee that has been very well maintained and last I knew (about a month ago) it was at 320,000+
 

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Ha alright, I will be wheeling with him Nov. 1 so I'll see what I can do for you guys
 

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Discussion Starter #18
Damn! I'd be happy to just get 300,000 miles. I only have 114,000 now.
 

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229854 and knocking like H###
 
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