Mach 1 Trans fluid

[F_a_x5.0]

Just thought I’d put a little input because i haven’t seen to many people talking about what fluid they throw in the Tremec. Today I did a trans fluid change on my 22 Mach 1 only has 32k on it but thought that since I recently put on a Barton short shifter I might aswell put some quality oil in her. Filled her up with the Amsoil SS fuel efficiency ATF and a bottle of BG MGC additive. Honestly the difference was actually instantly noticeable. Shifting felt super smooth, downshifts were crisp. Felt like synchros were in love. Obviously not as much as a need as the mt82 owners but just having that quality oil in a quality trans just makes it feel better.

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[Turbeau]

I concur. I used the Amsoil Signature ATF in my Mach 1 Tremec. The shifting smoothness improvement was noticeable. I did not use additional additive.

 

[murick]

I concur. I used the Amsoil Signature ATF in my Mach 1 Tremec. The shifting smoothness improvement was noticeable. I did not use additional additive.

Which Amsoil Signature ATF? I can find two of them: Fuel Efficient and Multi-vehicle.
Both however are quoted as MERCON V replacement, while the user manual for Mach 1 asks for MERCON LV. My naive observation would be that Amsoil is thicker than the OEM spec. Is it what makes it better?

 

[Turbeau]

Which Amsoil Signature ATF? I can find two of them: Fuel Efficient and Multi-vehicle.
Both however are quoted as MERCON V replacement, while the user manual for Mach 1 asks for MERCON LV. My naive observation would be that Amsoil is thicker than the OEM spec. Is it what makes it better?

I am using the Signature “Fuel Efficient”

Spec sheet here: https://www.amsoilcontent.com/ams/lit/databulletins/g3110.pdf

Snip from spec sheet in image. You are correct. Tremec 6spd is LV.

 

[Aonarch]

I'm running Amsoil DCT and it feels great.

Official spec is ATF WSS-M2C938-A

 

[skinnyb]

I am using the Signature “Fuel Efficient”

Spec sheet here: https://www.amsoilcontent.com/ams/lit/databulletins/g3110.pdf

Snip from spec sheet in image. You are correct. Tremec 6spd is LV.

This is what I put in mine. Butter smooth, works great...

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