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Consequences of NOT Changing Differential Fluid

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Old Mar 25, 2016 | 11:45 PM
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Consequences of NOT Changing Differential Fluid

Hi,

I do see the DIY for differential fluid change.

Question: What is the consequences if you do not change the differential fluid? Visually, it looks fine on outside & no fluid stain. Also, what kind of noise or sign that you have indicates you WILL need to change the differential fluid.

Thanks in advance.
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Old Mar 25, 2016 | 11:49 PM
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If you hear noise, it's too late. I would do at 30K, 60K max.
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Old Mar 26, 2016 | 12:08 AM
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I bought my car at 21k miles and it just hit 62k miles and I'm planning on doing mine soon hopefully
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Old Mar 26, 2016 | 10:46 PM
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Consequences~Oil breaks down which decreases its' lubricating properties, this leads to higher operating temps, which could lead to gear failure.
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Old Mar 27, 2016 | 12:07 AM
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Probably - nothing. Possibly - damage or accelerated wear to your rear end. There's no sign telling you to change it. Just like your motor oil. But the question is, why wouldn't you?
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Old Mar 27, 2016 | 12:42 AM
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Originally Posted by Black Betty
Probably - nothing. Possibly - damage or accelerated wear to your rear end. There's no sign telling you to change it. Just like your motor oil. But the question is, why wouldn't you?

Laziness But will prob have to get it done. Thanks
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Old Mar 27, 2016 | 09:04 AM
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I too need to change some fluids. I bought my car at 39,000

I have no idea if the previous owner changed out the rear diff fluid or the gear oil.

I have changed out the motor oil to Amsoil and filter.

I also bought Amsoil severe gear diff fluid. Will I need to add additives so it won't have chatter?
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Old Mar 27, 2016 | 01:45 PM
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Originally Posted by tite_tite
Laziness But will prob have to get it done. Thanks
its so easy to do, just do it yourself for the cost of 2 quarts of gear oil.
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Old Mar 27, 2016 | 01:47 PM
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It is literally as easy as changing your motor oil. Why you wouldn't do it every 30K is beyond me.
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