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sti rear diff fluid

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Old 08-10-2007, 12:25 PM
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Car Info: 2002 WRX SEDAN
sti rear diff fluid
what fluid is best for the sti's rear diff? i was going to put 75w90 mobil 1 in it but i dont know much of the internal clutches w/ that diff and if it needs friction.
thanks
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Old 08-10-2007, 02:49 PM
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I know this is an ongoing opinion issue, but I wouldn't use Syn. in the rear diff. I would use regular 75w90 gear oil. Just my two cents. I figure what came from the manufacture can't be a bad idea.
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Old 08-11-2007, 01:33 PM
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Subaru LSD Oil, p/n K0305Y0900
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Old 08-17-2007, 04:20 PM
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is the sti rear diff lsd?
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Old 08-29-2007, 09:22 AM
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do the front and center differentials in the sti 6spd get lubed by the gear oil from the trans or are they seperate?
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Old 08-29-2007, 02:29 PM
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yes, it uses the same oil.

75w-90 for the tranny and Subaru LSD Oil for the rear diff
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Old 09-06-2007, 08:14 AM
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How many cans of K0305Y0900 does it take to fill the whole thing?
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