TwinTurbo.NET: Nissan 300ZX forum - What is the reason for changing the weight?
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Subject What is the reason for changing the weight?
     
Posted by SammybTT(TN) on January 09, 2014 at 9:12 PM
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In Reply To Rear diff oil question posted by aquariuscsm on January 09, 2014 at 01:56 PM
     
Message I would think the 140 is too high of a viscosity unless your car sees a lot of severe duty (like racing). I currently run Red Line 75W90. Personally I would stick with the 80W90.

     
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