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".
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For what it's worth, when I view Red Line 75W90 and put in my Z year, make, model, Amazon says it is a fit for my car.
When I view the Red Line 75W90NS, it says it is NOT a fit for my car.
I've sold (non-auto part) items on Amazon as a dealer. If auto-parts are anything like my online store, the fit/compatibility information comes from the seller not from Amazon so that compatibility assessment is most likely directly from Red Line.