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Transmission fluid for OSGiken diff

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Old 09-13-2017, 11:48 AM
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Default Transmission fluid for OSGiken diff

Looking for recommendations for a suitable transmission fluid to use with an OSG diff in my K20 powered Civic.
Old 09-13-2017, 05:56 PM
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Default Re: Transmission fluid for OSGiken diff

Redline
Motul
Gear X
Old 09-14-2017, 07:13 AM
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Default Re: Transmission fluid for OSGiken diff

Doesn't OSG have a recommendation? I'd use whatever they suggest.

I used Torco MTF for my MFactory at the recommendation of MFactory and Mr. Bonespec.
Old 09-14-2017, 10:19 AM
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Default Re: Transmission fluid for OSGiken diff

OSG said 75w90 Motul Gear 300. They said it works well. I thought that weight was a little heavy for a Honda? HPD recommended OEM transmission fluid.
Old 10-09-2017, 04:45 AM
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Default Re: Transmission fluid for OSGiken diff

Ignore HPD's recommendation.

Torco RTF with Type F friction modifier. Motul gear 300 is also a great fluid.
Old 10-09-2017, 06:42 PM
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Default Re: Transmission fluid for OSGiken diff

I have been using amsoil severe gear synthetic 75-90 with my OS diff. Working very well at the track and holds up to the super high temps that the trans fluid gets.
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