Tremic 5 speed oil

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Mar 18, 2014 | 02:07 PM

1969RAY

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Burning Brakes

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From: ESCONDIDO CA

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Tremic 5 speed oil

I would like to know the best oil for a Tremic 5 speed.
I used automatic transmission fluid as recommended when it was originally installed. What is the current recommendation for these transmissions? How often should it be changed for the occasional weekend driver?

Mar 18, 2014 | 05:02 PM

FKING1

Safety Car

Joined: May 2003

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From: Dearborn Heights Michigan

They recommend GM Syncromesh.
I use Penzoil Syncromesh in mine that was recommended as a cheaper alternative by one of Kesler's techs.
Don't know about change interval.

Mar 18, 2014 | 08:13 PM

Black_Magic

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From: St. Louis MO

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I switched to RED LINE in my '65 a few years back and notice much easier/smoother shifting.

Last week I switched to RED LINE in the '79 and also notice a difference.

Both have Tremec 5 Speeds.

George

RED LINE ATF -- D4

Mar 18, 2014 | 08:32 PM

BB2B

Racer

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From: Oxford MI

I used GM synchromesh at $18 per quart. recommended change is every 30,000 miles

Mar 18, 2014 | 09:49 PM

drwet

Melting Slicks

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From: Thunder Bay

I got my Tremec TKO 600 from Modern Driveline and they supplied Amsoil Synchromesh Transmission fluid with it. Haven't had a chance to drive it more than up and down the driveway yet so not much to report there. I'm not a big Amsoil fan but I figure I better use what they recommend.

Mar 19, 2014 | 08:45 AM

Solid LT1

Le Mans Master

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From: Fremont CA

Royal Purple or Amsoil in my TKO/T56 transmissions

Mar 19, 2014 | 09:20 AM

zuendler

Pro

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From: Karlsruhe (Germany)

Hurst wrote also Synchromesh and additional options would be ATF and a Mobil 1 transmission fluid.

They explained in the instructions, that oil that makes shifting easier causes more wear on the tension rings. So its on your own. If you want longer lifetime of the rings, you have to accept harder shifting. The Synchromesh would be the best between shiftability and tension ring wear.

Mar 20, 2014 | 08:07 PM

C66 Racing

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From: King George VA

Quote:

Originally Posted by Solid LT1

Royal Purple or Amsoil in my TKO/T56 transmissions

Note that the TKO primary fluid is a synchromesh (optional is ATF). This is the AMSOIL primary recommendation:
AMSOIL Synthetic Synchromesh Transmission Fluid (MTF) (Product Code MTFQT)

And the T56 primary fluid is an ATF. This is the AMSOIL primary recommendation (which is what I use in my T56 at the track):
AMSOIL Torque-Drive Synthetic Automatic Transmission Fluid (Product Code ATD1G)

More than happy to get AMSOIL products for forum members at dealer wholesale pricing, about 25% below retail, via the AMSOIL Preferred Customer Program. Drop me a PM if interested.