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Manual Transmission Oil Change

Do it without making a mess!  ◆◇◇◇  Easy


Let's be honest.  How many of us strictly stick to the manufacturer's recommended maintenance schedule?  Some might say the maintenance schedule suggested seem premature.  Whatever your view might be, the dealer can decline your warranty claim if you can't provide sufficient document to prove that you kept up with the maintenance and they will beat in court.

 

Some people tend to be more reactive than preventative.  Many times when the actual problems occur, they are usually very expansive!  Yet a lot of the failures could be easily prevented by keeping up with the regular maintenance alone!

 

Jeeps are no exception, because it is "Trail Rated", doesn't mean it is extra maintenance free.  Because of 4x4 system and the harsh environment it faces, it requires more maintenance than any other vehicle. On this page, I am presenting how to change the manual transmission (AX-15) oil which is a part of manufacturer's recommended scheduled maintenance.

 

Tools and Supplies Needed

Socket and Ratchet Set

Oil Catch Bin

Sheet of Metal (Home Depot, $5)

GL-3 Approved Tranny Oil (Redline MTL ~3 quarts)

Hand Oil Pump (Autozone ~$15)

 

Job Hours

30 minutes or less

 

 

I decided to go with the Redline MTL over Redline MT-90 because it is thinner.  I also found out it is hard to find GL-3 in general automotive stores, in fact I had to order it online.  SummitRacing.com tends to have great price and cheap shipping compared many other online vendors.

 

 

Procedure


 

1. There is only one bolt (on the lowest part of the transmission) that protrudes out on the passenger side.  Loosen it first with ratchet, you should be able to spin loose with your hand but do not open the hole just yet!

 

 

 

 

2. I have bent a thin sheet metal from HomeDepot (Cost Less Than $5) to a shape V and placed it underneath so the oil can clear the skid plate.  

Reach in and remove the bolt, and let the oil flow!

 

 

 

3. The drain bolt has magnet built in, unless you just replaced the tranny oil, chances are it is gunked with metal shavings.  Clean it with paper towel.

 

4. Once all the oils are drained, put the drain bolt back on.  I put on a Teflon tape that is used for plumbing around the drain bolt.  It helps seal better.  DO NOT OVERTIGHTEN THE BOLT!

 

5. On the driver side, there is a fill hole.  Open it and fill it up with tranny oil using a hand pump.  Mine took little less than 3 quarts till it started to over flow.

 

 

 

6. Put the fill port bolt back on, once again put on some Teflon tape.  DO NOT OVERTIGHTEN THE BOLT!

 

You are done!  Mine shifted better after the tranny oil change.

 


If you have any questions or recommendations, please let me know!!

 

Disclaimer

I tried my best to document as much as possible along with pictures.  I hope you find them useful. However, do use the information provided here "as-is".  DailyDrivenTJ.com or the author does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, or process disclosed.  Use the information at your own risk.

 

Written by Michael on 2006.4.7.

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