Which Redline trans fluid to use?

matt89sc

Registered User
I want to try Redline trans fluid in my notchy shifting 5 speed SC, but don't know what kind to get. They make....
75/80W manual fluid,
90W manual fluid,
Dextron II /Mercon ATF,
Dextron IV ATF,
..and a couple other racing ATF's. Anyone using these fluid? Any suggestion? Thanks!!
 
Matt - I've used their "MTL" gear oil for years with great success & recently added 4 ozs of their synthetic 'friction modifyer' as well. However, if you call them for a recommendation I think they now suggest their D4 synthetic ATF. At $8 qt though you might want to consider Mobil 1's ATF - I've heard others say it also works great.
 
I second Joisey Jim's recommendation to consider using Mobil 1 ATF. I switched to this years ago in my 5-speed and it works great. A noticable improvement!

Plus, the Mobil 1 can likely be found locally. You may have to mail order the Redline products unless you have a distributor near you. The Mobil 1 is also likely less expensive.
 
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