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5-speed gear oil

15929 Views 17 Replies 13 Participants Last post by  fitfors2k
Has anyone used amsoil 75w90 gear oil in the 5-speed tranny? What is
different or special about Honda manual transmission oil? :D I understand the amsoil gear oil increases fuel mileage.
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i'm going to try an put in some Redline 75w80 "MTL" in my 2006 Insight, as opposed to the stock OEM Honda tranny fluid
That would be great to know any differences. I felt a difference from old to new stock fluid making for smoother shifting.
There's a couple others: Castrol VMZ80, Amsoil ATF, as well as the Redline MTL that match the specs of the Honda MTF. Specs for fluid in lower left corner of linked photo.
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