As mentioned the factory manual calls for straight 90, but that's pretty hard to find. The closest common gear oil is 80w-90 and I think most use that. I tend to stick to what the Japanese engineers suggest. If they didn't know what they were talking about, we wouldn't be driving around in Toyota trucks that last 30 years with 300K miles on them. <img src="/forums/images/graemlins/smile.gif" alt="" />

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