Quote:
Originally Posted by BAN SUVS
I'm aware of the difference in viscosity ratings between motor oils and gear oils. I was taking that directly from the quote Matt took from Redline, which is that the shockproof has the friction properties approximating that of 30w motor oil. Point bing, the "90w140" rating is a bit nebulous, as almost all Redline products are.
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But I would bet it uses the same base as their other 90W140 gear oils. I am only comparing within their product line.
And don't forget that viscosity <> coefficient of friction or internal friction of the liquid.
So my thought is that the 90W140NS may be the best choice as it is GL5 without the modifiers and without the solids.
I think I'll give the tech line a call and see what they say.