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DIY: Rear Differential Oil Change

I've changed my rear diff oil three or four times now over the past 3 years. This past swap, the oil looked pristine while draining out. Compared to how terrible

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Old 04-30-2012, 09:17 AM   #1 (permalink)
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I've changed my rear diff oil three or four times now over the past 3 years. This past swap, the oil looked pristine while draining out. Compared to how terrible it looked the first few times, I'm not sure what that means...
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Old 04-30-2012, 09:19 AM   #2 (permalink)
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I've changed my rear diff oil three or four times now over the past 3 years. This past swap, the oil looked pristine while draining out. Compared to how terrible it looked the first few times, I'm not sure what that means...
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Old 05-01-2012, 01:08 PM   #3 (permalink)
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Is Red Line 75W90 GL-5 Gear Oil is correct for 370z Automatic drivetrain for diff fluid? I read the whole pages in this thread but I had to ask to double check to confirm. This is not for transmission flush, only for diff if you are asking.


Red Line 75W90 GL-5 Gear Oil
Red Line Synthetic Oil - Gear Oil for Differentials - 75W90 GL-5 Gear Oil

Thanks guy.
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Old 05-10-2012, 06:33 PM   #4 (permalink)
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Can the differential change be done by backing up on Rhino ramps, or is it necessary/better to jack it up, and place jackstands to keep the car level ?
The ramps & jack I have, the stands I would need to buy.
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Old 08-29-2015, 05:58 PM   #5 (permalink)
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Quote:
Originally Posted by spearfish25 View Post
I've changed my rear diff oil three or four times now over the past 3 years. This past swap, the oil looked pristine while draining out. Compared to how terrible it looked the first few times, I'm not sure what that means...
My educated guess is that the pint that is unable to drain unless you take the whole diff cover off, that remains after draining the majority of oil out of the drain plug, has finally been diluted down after a few changes and the fluid looks much cleaner now.

I plan on doing my first diff change next week, 15k miles on my 2012. I am picking up a livestock syringe from Tractor Supply that I will be able to attach vinyl tubing to, so I may remove as much of the old gear oil out of the diff through the filler hole as possible without removing the whole cover.

I'll let you guys know if I'm successful or not.
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