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Old 03-17-2008, 10:43 PM
gman66 gman66 is offline
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Join Date: Jun 2007
Posts: 26
Default Why 75w90 in tranny?

I just bought 6 quarts of Amsoil 20w50 for my RKC and it says to use in all 3 holes. A lot of people are recommending 75w90 severe gear for the tranny. Will I be ok with the 20w50 or should I switch and why? Thanks
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