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at what milage do you replace diff fluid

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Old May 11, 2004 | 06:04 AM
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n8vz
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Default at what milage do you replace diff fluid

I am approaching 15,000 miles for my Z.

When do you guys recommend changing differntial fluid?
I was going to bleed the brake and change the tranny fluid at the 15,000 mile service. How about the differntial?
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Old May 11, 2004 | 11:57 AM
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It couldn't hurt. I changed mine after breakin at 1200 and again at 30k.
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Old May 11, 2004 | 12:41 PM
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MonkeyBoy, are there any gaskets to replace on the drain/fill plugs?
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Old May 11, 2004 | 01:26 PM
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I just reused mine. I am sure you can get them from Nissan though. I usually have my car up on a lift once every other week for tweaking things, and I have not noticed any problems so far.
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Old May 11, 2004 | 09:54 PM
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Originally posted by MonkeyBoy
I just reused mine. I am sure you can get them from Nissan though. I usually have my car up on a lift once every other week for tweaking things, and I have not noticed any problems so far.
What fluid did u use? and weight?
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Old May 12, 2004 | 02:44 PM
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I used Redline MTL which is an 75W80 fluid GL-4 rated.
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Old May 16, 2004 | 06:35 PM
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I replaced mine at 10,000 miles with Amsoil. Felt like I was driving with 2 clicks on the ebrake before the fluid swap. There were also a LOT of metal shavings in the oil and stuck to the plug!
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Old May 17, 2004 | 12:47 PM
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Originally posted by MonkeyBoy
I used Redline MTL which is an 75W80 fluid GL-4 rated.
Oops ... check that, I used the 75W90 fluid which is Gl-5 in the diff. Sorry about that.
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