so im getting into maintenance on my jk but i dont know when to change my diff fluids the owners manual says change them if off road police towing and what not ... i was just wondering when to change it i have 25k on her now thanks

 

You should change the fluid for your differentials on or about 30k. You should also change the fluid in your transfer case as well at the same time.

 

Maybe I read my manual wrong but it said every 19,000.

 

I asked this question on another thread and people were horrified when I said the manual says check it at 48k (2011 and 2012 says this, you can download the owner's manuals from jeeps webpage, if I am wrong can someone point me to the page number)... now we have someone saying 30k and someone is saying it should be 19k which isn't even an interval in my manual... (mine has 8,16,24,32,40,48).

I will likely change at 24k... if I was at 30k I would go ahead and change it.

 

I change mine ever 17-20k. I also do a good bit of wheeling and hwy miles traveling to the spots.

 

thats pretty funny!! i could have sworn i read 15k in my '10 owners manual. did 'em last month.

 

You have an '09?

Below is from the '09 Owner's Manual. If your Jeep is mostly used on-road, and you don't tow a lot, 30,000 miles is a great time to change the axle fluid.
The book never does say to change it if you're not using your vehicle for police, taxi, fleet,
off-road or frequent trailer towing.

18,000 Miles (30,000 km) or
18 Months Maintenance
Service Schedule
Inspect the front & rear axle fluid, change
if using your vehicle for police, taxi, fleet,
off-road or frequent trailer towing.

 

I'm gonna change them tomorrow and do it every 15k

 

when i did mine there was a goober of fine metal shavings stuck to the magnet on the drain plug. i guess it was from the break-in. glad i did it @15k though.