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Unread 02-05-2016, 09:26 AM   #1
PartyMedic
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Current and Preventive Maint of 04 TJ

Good morning guys! Finally back in the jeep family again after 10 years...

Well I picked up an 04 Sahara with 58k original miles. The stock radio still had the protective plastic film, and the installed soft top still had the instructions perfectly preserved and rolled up in the cloth. In fact the hard top had never been removed. I honestly believe this jeep may have sat in a garage for year without being driven.

So here's my question -- What do I need to change out fluid wise to ensure it's all up to standards? And if I do change out everything, can someone point me to a general consensus of brands that coincide with the required fluids?

Engine oil, radiator flush, diff front and back, t-case, transmission. By age alone does that warrant the fluid changes?

I appreciate any feedback or direction

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Unread 02-05-2016, 09:31 AM   #2
TheBoogieman
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Welcome back.

http://www.jeepforum.com/forum/f9/fa...cities-489932/
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Unread 02-05-2016, 09:35 AM   #3
PartyMedic
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Originally Posted by TheBoogieman View Post
Thanks!

So in the front or rear diff -- is there an advantage to either 80W-90 or 75W-140? If the later is for 'towing' or heavy duty, why not default to that?
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Unread 02-05-2016, 09:44 AM   #4
2jhanna
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80/90 for normal conditions should be fine for Mississippi. The 75/140 does give a little wider range of temps and towing. Either should be fine,.

And yes, a good changeing of all the fluids you mentioned, along with spark plugs, air filter.

This will give you a new "ground zero" starting point. I would check rubber parts like belt, hoses, tires, etc for dry rot.

Looks like you got a good one ! Congrats.
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Unread 02-05-2016, 09:52 AM   #5
PartyMedic
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Originally Posted by 2jhanna View Post
80/90 for normal conditions should be fine for Mississippi. The 75/140 does give a little wider range of temps and towing. Either should be fine,.

And yes, a good changeing of all the fluids you mentioned, along with spark plugs, air filter.

This will give you a new "ground zero" starting point. I would check rubber parts like belt, hoses, tires, etc for dry rot.

Looks like you got a good one ! Congrats.
Do you recommend replacing the cover gaskets on the front and rear diff too?
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Unread 02-05-2016, 10:06 AM   #6
chris142
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Originally Posted by PartyMedic View Post
Do you recommend replacing the cover gaskets on the front and rear diff too?
Silicone works better. Change the coolant and brake fluid too
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Unread 02-05-2016, 10:19 AM   #7
2jhanna
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Quote:
Originally Posted by PartyMedic View Post
Do you recommend replacing the cover gaskets on the front and rear diff too?
Chances are that there are no gaskets, just silicone RTV, which is what most here go back with.

Some use "lube locker gaskets" which I understand are reuse able.
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Unread 02-05-2016, 04:35 PM   #8
2004sahara
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Standard or auto ? If standard shift, use mopar branded oil. It just works.
2004, so you got coil pack over plugs....NGK plugs.
Coolant, don't get too worked up about HOAT, prestone makes one that is labeled for jeep.
Brake fluid, bleed and flush away all the old stuff.
T-case, ATF any popular brand should be fine.
Don't forget the friction modifyer if you have limited slip,rear diff...Sahara , so good chance you got a dana44!
Don't forget the check clutch fluid... I have never changed it before ?,
Don't forget your blinker fluid.

Any pics of your new gem?
Enjoy!
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