Quote:
Originally Posted by TipsZ
One would think that we should use the NS designation since it allows for "transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting". Even Modshack stated that it "should not" make a difference as to which one to utilize.
I think I am going to order the NS designated oil and try it out and let you guys know how it goes.
75W90NS GEAR OIL
This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.
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It might be correct that the 370Z differential doesn't need the friction modifiers in the regular 75-90, but it can't hurt it. I don't think you'll benefit from using the NS version over the regular GL5 75-90 (w/friction modifier)unless you were to use it in a Manual transmission. The NS is designed for either non-LSD's or MT's requiring GL5. Any reason you need the NS version? Just curious because the benefits you cited would only be for when it is placed in the MT. (but our MT requires GL4, the MT-90 version).