Synthetic or Normal for Eaton

03-31-2009, 11:14 PM

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Synthetic or Normal for Eaton

Couldn't find any definite info on their site or thru a search here. Which gear oil is best for Eaton posi units? Will i need the gm additive?

04-01-2009, 10:02 PM

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non-synthetic, any weight, and yes you need the gm additive, dont use the auto parts store additive.