Diff oil weight - Team Camaro Tech
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post #1 of 6 (permalink) Old Oct 6th, 02, 01:31 PM Thread Starter
 
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What is the best weight oil to use. on a limitted slip diff.?
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post #2 of 6 (permalink) Old Oct 6th, 02, 02:55 PM
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Jim
 
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I use Amsoil Series 2000 80w-90 in my Eaton posi and its great. Runs much cooler and will last a very long time for you.
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post #3 of 6 (permalink) Old Oct 6th, 02, 04:19 PM
 
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Whats your average temperature, does it ever freeze there, how hard do you drive your car?

It's not really a big deal, but depending on your driving habbits it can be.

Theres nothing wrong with a good 85-90wt (not sta-lube) and this weight will work good if it does freeze. If it does not freeze and/or you drive pretty hard, I would then recommend a 140wt.

I myself run an ISO9000 350wt in my 12 Bolt, but it never sees temperatures below 55.
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post #4 of 6 (permalink) Old Oct 6th, 02, 04:47 PM
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I also use Amsoil 75W90 Series 2000. I use it in all of the posi rear ends that I build. If you want to use a petrolium oil then use a 80W90 with the GM additive #1052358 or Ford #M-19546. Either one will work fine.

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post #5 of 6 (permalink) Old Oct 6th, 02, 07:37 PM Thread Starter
 
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Thanks for the info. I used a Valvoline. 80-90, Do I still need the additive?
<BLOCKQUOTE>quote:</font><HR>Originally posted by big gear head:
I also use Amsoil 75W90 Series 2000. I use it in all of the posi rear ends that I build. If you want to use a petrolium oil then use a 80W90 with the GM additive #1052358 or Ford #M-19546. Either one will work fine.

<HR></BLOCKQUOTE>

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post #6 of 6 (permalink) Old Oct 6th, 02, 09:15 PM
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Yes you need the additive.

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