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Old 01-13-2011, 09:22 AM   #1
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Talking Transmission Oil Change made difficult

I am about to change oil in my 1995 Wrangler 2.5 AX5 I believe.

In the old days I would just look at the owners manual and put in the oil that was specified in the booklet.

Jeep has 92,000 miles and oil has never been changed. Thought it was about time!

But after reading all the threads on this great site I dont know what to do now. Everyone has their own idea on what is best! I really do apreciate all the fine input but now I don't know just what to do. I dont use the jeep hard but would like to put in what will make the trans last the longest. I guess I will have to be a big boy and make my own decision.

Maybe the problem lies in the fact that there have been so many imporvement in oils, both synthetic and petroleum based.

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Old 01-13-2011, 09:32 AM   #2
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Quote:
Originally Posted by dboxjeep View Post
I am about to change oil in my 1995 Wrangler 2.5 AX5 I believe.

In the old days I would just look at the owners manual and put in the oil that was specified in the booklet.

Jeep has 92,000 miles and oil has never been changed. Thought it was about time!

But after reading all the threads on this great site I dont know what to do now. Everyone has their own idea on what is best! I really do apreciate all the fine input but now I don't know just what to do. I dont use the jeep hard but would like to put in what will make the trans last the longest. I guess I will have to be a big boy and make my own decision.

Maybe the problem lies in the fact that there have been so many imporvement in oils, both synthetic and petroleum based.
Agreed, everyone has their own opinion on "what the best" fluid is to use in certain areas-I just go by the book and so far so good. Although I do put the Royal Purple in the rear diff but a different synthetic in the front. Other than that-I just go by the book.

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Old 01-13-2011, 11:02 AM   #3
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Snap-on's Shopkey says to use GL-5 (Pennzoil synchromesh) or 75w90. Other trans shops say synthetic 10w30 engine oil. Any would be ok but if you want to go by the book the GL-5 or 75w90, it's your choice.
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Old 01-13-2011, 11:46 AM   #4
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After 15 years I'd treat it to the dealer with OEM products.
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Old 01-13-2011, 11:49 AM   #5
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I think any of the above would work, I have always been told that the biggest problem with lubrication is lack of, not the wrong kind.
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Old 01-13-2011, 12:15 PM   #6
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Originally Posted by gafarmer View Post
I think any of the above would work, I have always been told that the biggest problem with lubrication is lack of, not the wrong kind.
very true!
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Old 01-13-2011, 12:49 PM   #7
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I need to cycle all the fluids in my jeep. Not really looking forward to it.
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Old 01-13-2011, 03:42 PM   #8
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Synchromesh is the way to go! The key is it's compatibility with yellow metals and isn't harmful to brass components. It's what I use.

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