MTF for Civic Si

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Originally Posted By: KingCake
Originally Posted By: Gebo
Honda MTF was too thin in my 89 Prelude. Notchy and scrapped when changing. Amsoil was better but Redline was the best. Amsoil would only last about 10k. Redline has lasted 25k and there has been NO shifting degradation.

When I had my Acura, Redline was the best manual transmission fluid as well.

I think it took 2 qts and will easily last 30k.


fix your tranny instead of band aid fluids that will cause more damage in long run


Honda MTF did not exist in 1989.

A 1989 Prelude would have come from the factory with 10w-30 in its manual transmission or with Dexron II in its automatic transmission.

Honda didn't start saying that 10w-30 was temporary until they came out with their own special sauce.

Most if not all HDEOs are GL-4 rated, so if it shifts fine on 10w-30 or some other viscosity of HDEO, no mechanical harm will be done.
 
So what oil did you end up going with? How is it working?

I personally have tried Redline, the old and newer Honda MTF and the Pennzoil synchromesh. I personally like the Pennzoil the best. There's no notchiness in the cold. It has been in my car about 20K miles and it feels the same as the day I put it in.

I was planning on trying the GM Synchromesh friction modified next change. Harder to find, but maybe it'll be worth it.
 
Originally Posted By: Olas
Originally Posted By: Rand
I'd try redline.

I think your car would take
MTL 75W80 GL-4


+1,000,037


How is Redline better than Synyrans Transaxle? Don't answer because I know it isn't.
 
Originally Posted By: chrisri
Originally Posted By: Olas
Originally Posted By: Rand
I'd try redline.

I think your car would take
MTL 75W80 GL-4


+1,000,037


How is Redline better than Synyrans Transaxle? Don't answer because I know it isn't.


Syntrans is very good, there's no doubt about that. It loses out to redline on moft and thermal stability et al.
 
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