Should I change fluids - JeepForum.com
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post #1 of 22 Old 06-19-2017, 06:34 PM Thread Starter
Dig1966
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Should I change fluids

I Just bought a 2004 Jeep Wrangler Rubicon with 140,000 miles. Former owner did take the Jeep off road. Seems to be well taken care of and I am going to change the oil. I was wondering if there is wisdom in changing the transmission fluid and the transfer case fluids? Thanks for any advice you can give me.

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post #2 of 22 Old 06-19-2017, 06:37 PM
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Do you know the last time the owner changed them? If not, I'd change the transmission, transfer case, and both diff fluids, just to be safe and start over with a fresh maintenance schedule.

I'd also change steering fluid and brake fluid, but that's more involved. Maybe antifreeze as well?

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post #3 of 22 Old 06-19-2017, 06:39 PM
Raist11
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Only you can decide that. Will it ensure all the fluids are good? Yup. Would I do it? Nope. But many people probably would. It comes down to what will make you feel comfortable with it. Check the level, color of all fluids and make your decision from there.

Current: '00 TJ Sport
Past: '98 TJ Sport - lots of aftermarket
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post #4 of 22 Old 06-19-2017, 07:04 PM
JEK3
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May not be necessary, but it's never a BAD idea to change fluids, and the most it will hurt is your wallet (unless you do it wrong).
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post #5 of 22 Old 06-19-2017, 07:08 PM Thread Starter
Dig1966
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Thanks all!! Any downside to going with synthetic oil?
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post #6 of 22 Old 06-19-2017, 07:13 PM
2jhanna
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Thanks all!! Any downside to going with synthetic oil?
Mo money!

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post #7 of 22 Old 06-19-2017, 08:27 PM
wadewen
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Originally Posted by Raist11 View Post
Check the level, color of all fluids and make your decision from there.
If the fluids are clean and the appropriate color, I'd leave them.

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post #8 of 22 Old 06-19-2017, 11:25 PM
Shark_13
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If you are doing it yourself and have the time/money, definitely. It's not that much for fluids.
No need for synthetic.
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post #9 of 22 Old 06-20-2017, 04:29 AM
TheBoogieman
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I just bought an 03' Rubi myself. Luckily the PO (original owner) kept every service record from day one. All fluids (including axles) recently changed, new clutch and windshield. He did every service, on time and religiously. The best is that he NEVER took it offroad.
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post #10 of 22 Old 06-20-2017, 05:31 AM
Mattific
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Originally Posted by TheBoogieman View Post
I just bought an 03' Rubi myself. Luckily the PO (original owner) kept every service record from day one. All fluids (including axles) recently changed, new clutch and windshield. He did every service, on time and religiously. The best is that he NEVER took it offroad.


That's pretty much how I got my 04 from an older gentleman (original owner) who used it to go skiing pretty much exclusively. I got every service record and all of it was through the dealer. I don't think it had ever been more than 40 miles from where he bought it
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post #11 of 22 Old 06-20-2017, 08:30 AM
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Quote:
Originally Posted by Dig1966 View Post
I Just bought a 2004 Jeep Wrangler Rubicon with 140,000 miles. Former owner did take the Jeep off road. Seems to be well taken care of and I am going to change the oil. I was wondering if there is wisdom in changing the transmission fluid and the transfer case fluids? Thanks for any advice you can give me.
If you want to know, change them all. If you don't want to know, leave them be. It is about that simple and has nothing to do with wisdom, just knowing.

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post #12 of 22 Old 06-20-2017, 09:17 AM
TJnBC
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I ALWAYS refresh the fluids with any vehicle I buy...unless I have the proper service records.

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post #13 of 22 Old 06-20-2017, 09:21 AM
toximus
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I know too many people who never follow the service schedule and don't use the proper fluids (think: manual transmission oil low? ATF will work. Or: 10w30 was good enough for my dad so it ought to work just fine in this European sports car.).

Even if you have service records it might be a good idea to just change all fluids. I'd even include radiator fluid on that list. They may have topped it up with a hose for all you know and it'll crack once winter comes.


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post #14 of 22 Old 06-20-2017, 09:32 AM
TheBoogieman
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I'd even include radiator fluid on that list. They may have topped it up with a hose.
What is this radiator fluid you speak of? Is it the Orange or Green stuff I feed to thirsty unwanted animals around my house? (JK)

p.s. I've never topped up the radiator fluid with my hose.
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post #15 of 22 Old 06-20-2017, 09:41 AM
toximus
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Originally Posted by TheBoogieman View Post
What is this radiator fluid you speak of? Is it the Orange or Green stuff I feed to thirsty unwanted animals around my house? (JK)

p.s. I've never topped up the radiator fluid with my hose.
I use the purple stuff that I put in my washer fluid. It's just companies trying to scam us with different containers anyway. /s


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