Frequency of gear oil change

B

BlueRubicon

Caught the Bug
This question is to those who have years of experience actually using their Jeep for what it is for. How often do you change gear/axle oil? I have just under 10K on JLUR and was considering doing it now. I have off-roaded probably about 12 days in total since I bought it in December. All of this off-roading including rock crawling and steep rocky inclines.
 
BlueRubicon said:
This question is to those who have years of experience actually using their Jeep for what it is for. How often do you change gear/axle oil? I have just under 10K on JLUR and was considering doing it now. I have off-roaded probably about 12 days in total since I bought it in December. All of this off-roading including rock crawling and steep rocky inclines.
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so, If I am towing or offroading alot I do every 15K, normal driving every25 to 30k. I may be wrong though. I do have 200k on my Jeep though.
 
I end up doing a number of water crossing a year, so just as a pro cautionary measure, I change it after a long wet run like Drummond.


2015 JKUR AEV JK350
1985 CJ8 Scrambler
 
BlueRubicon said:
This question is to those who have years of experience actually using their Jeep for what it is for. How often do you change gear/axle oil? I have just under 10K on JLUR and was considering doing it now. I have off-roaded probably about 12 days in total since I bought it in December. All of this off-roading including rock crawling and steep rocky inclines.
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I go every 15k or after any trips that involve water crossings.


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Speedy_RCW said:
75-140 here but I’m running 5.13’s. Just taking a guess you’re running stock gearing so whatever the manual recommends for you. Likely 75-90.


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I changed mine at 9k miles or so, to 75-140 in rear and 75-90 in front. I was stock rims and tires then, but I've always put 75-140 in my previous trucks and since I routinely hit 90 on highway, so likely a good fit. Since moving to 37's, I most definitely will stay with 75-140.
 
MericaMade said:
So manual says to to run 80W-90. Living and wheeling mostly in SoCal is that what you guys would recommend as well?

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Depends on what gears you run. If you have stock then yes run that. If you run a higher ratio like a 4.88 or a 5.13 then do a 75w-140 due to the extra heat created
 
4:88s and I run amsoil 75w-110. It’s what Dan from fusion wanted in them so I didn’t question.


2015 JKUR AEV JK350
1985 CJ8 Scrambler
 
cozdude said:
Depends on what gears you run. If you have stock then yes run that. If you run a higher ratio like a 4.88 or a 5.13 then do a 75w-140 due to the extra heat created
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Yeah stock 4:10s for now. Thank you. Any brands to stay away from?
 
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In my JK I ran Lucas Oil then Mobil 1 in the same weight. She felt heavier with the Lucas oil for some reason, like it had to work harder. I don’t know, I had a transmission issues too, but I switched to Mobil 1 (buy 1 get 1 sale) & that feeling seemed to go away.
 
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