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5-speed gear oil

15936 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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Below is an email sent to Amsoil and their reply concerning a fluid for the 5-speed.

Currently my dealer says that an Amsoil lubricant for the manual transmission on my 2000 Honda Insight is not available. Will you have anything in the future? I use Series 2000 0W30 in the engine with favorable efficiency results (Honda recommended 0W20) and would like to use Amsoil in the trans as well. Thank you,

From: AMSOIL Technical Services

Thank you for contacting AMSOIL with your concerns.

In response to your inquiry, yes the driveline fluids folks are looking at a manual transmission lube for Honda/Acura vehicles. We don’t have a time line yet though.

Thank you again for the opportunity to respond to your concerns. As always, please feel free to contact us again if we can be of further assistance.


Jim Van

AMSOIL Technical Services
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