Quote:
Originally Posted by Redlineoil.com
Lightweight ShockProof® ...Similar to a 75W140 gear oil, but with the lower internal friction of an SAE 30 motor oil.
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I wonder if the 140 is the real reason shockproof appears to work so well. Compared to the recommended 75W90, that is a significant increase in viscosity.
Maybe the answer is just to go with the 75w140NS.