Heavy gear oil in rear diff ok?
05-18-2007, 06:17 AM
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Heavy gear oil in rear diff ok?
Hey, I bought some Valvoline gear oil which i think is rated 90w-140 (not exactly sure but it is way higher than what Toyota calls for) thinking that it will be better for the gears. I am starting to have second thoughts about using it now. Can anyone tell me if I will be doing any harm or if it is worth the added protection if it does coat the metal better? I have an E-locker if that makes any difference... Thanks.
05-18-2007, 06:32 AM
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I can't say whether or not it will cause damage but I see no reason to run it over the 75/90. If you question at all then why not just use what Toyota recomends?
05-18-2007, 09:53 AM
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05-18-2007, 10:38 AM
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