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Did I mess up my grease change?

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Old 09-19-2003, 07:45 PM
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Default Did I mess up my grease change?

I just changed the rear end grease on my stock 2002 Camaro Z28 M6 rear end. I put Pennzoil 80w90 grease in it. Was I supposed to put some posi additive in it too? Am I ok or am I f'd??
Old 09-20-2003, 01:36 PM
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Default Re: Did I mess up my grease change?

I know someone has changed their rear-end fluid on here....
Old 09-22-2003, 10:46 AM
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Default Re: Did I mess up my grease change?

try searching, it's been discussed many times.
Old 09-22-2003, 10:51 AM
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Default Re: Did I mess up my grease change?

Your fine.

THe posi additive is really for clutch type differentials.
Old 09-22-2003, 09:45 PM
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Default Re: Did I mess up my grease change?

Believe me I know to try the search first but no relevant info came up. So are you saying I do not need to add posi additive?
Old 09-23-2003, 07:59 AM
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Default Re: Did I mess up my grease change?

You do not need additive in your differential.It runs a torson.
Old 09-23-2003, 09:56 AM
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Default Re: Did I mess up my grease change?

Technically, you are supposed to use synthetic in the rear, but I've used both and noticed no difference. No additive for 00-02 cars regardless of what the book says.
Old 09-25-2003, 08:44 AM
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Default Re: Did I mess up my grease change?

Thats right, you have no clutches in your Torsen. But I think I'm going to use synthetic 75-90. On the Mobile 1 syn bottle it says even if you have clutches you don't need to add anything.
Old 09-25-2003, 08:30 PM
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Default Re: Did I mess up my grease change?

85w140 weight non synthetic will lock the Torson harder.Thats if you think the posi isn't strong enough.




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