1999 Chevy Corvette 1999 corvette rear end fluid/additive q

1999 CHEVROLET CORVETTE
64,000 MILES • V8 • 2WD • AUTOMATIC
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CORVETTECOLLECTOR1
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I was wondering if I drain and refill my rear-end with Mobil 1 75w-90 do I still need to add an anti-slip additive ? Thanks!
Sep 28, 2009 at 11:25 AM
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DOCFIXIT
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Yes will need a GL5 gear oil and .1 L friction modifier additive
Sep 28, 2009 at 11:36 AM