Best fluid for TR-3650?

[hardcore302]

Tremec states to put in 3.2 quarts. It is factory fill with 4 quarts from Ford, but a TSB by Ford and a statement from Tremec says 3.2 will fix the notchy shifting. That much I have figured out.

Nor for the fluid.
Tremec says Mobil 1 ATF, but people say that is because that's all the have tested. Some people say Syncromesh, but some say no because it will damage parts. Others say stick with non-synthetic Ford or equivalent Mercon V. Others say Amsoil, and others say SECRET SAUCE, which includes whatever plus a quart of Lucas Trans Fix in there.

WTH do I buy tomorrow, lol. I've tried the Mustang forums, and they are always on point with mechanics and mods, not so much with oil and the like. I trust you guys more.

Thanks!

 

[Rand]

stay away from lucas anything

it varies from adequate to causing damage.

 

[NHGUY]

Wonder if the Lucas will churn up as bad as the engine additive.

 

[Clevy]

Valvoline max life. It was awesome in my t-45,and I'm using it in a t-3650 and works great thus far

 

[MetalSlug]

Mobil 1 ATF with Lucas transmission fix . A lot march 1 mustang running that combo . Back the I did a search and joint the march 1 mustang forum and that what every body running . I use it on my 98 gt t45 and it shift much smoother.

 

[dailydriver]

The T-5s/T-45s/TR-3650s MUST have VERY VERY different synchro/blocker ring setups from my T56, since I once tried the Lucas carp in mine (on the Stangers' suggestions), and had to dump the whole fluid change due to how badly it shifted with that stuff in there!

I guess NOT all Tremecs are created equally??

 

[Clevy]

Originally Posted By: dailydriver
The T-5s/T-45s/TR-3650s MUST have VERY VERY different synchro/blocker ring setups from my T56, since I once tried the Lucas carp in mine (on the Stangers' suggestions), and had to dump the whole fluid change due to how badly it shifted with that stuff in there!

I guess NOT all Tremecs are created equally??


I agree. Lucas caused notchy shifting and 3rd gear whine in both my t-45 and t-3650.
Its carp for sure.

 

[Old Mustang Guy]

I read this with interest because I have the same trans. I was leaning toward one of the synchromesh fluids. Didn't know about any potential damage.

 

[Clevy]

Originally Posted By: Old Mustang Guy
I read this with interest because I have the same trans. I was leaning toward one of the synchromesh fluids. Didn't know about any potential damage.


Valvoline max-life. Nuff said

 

[Old Mustang Guy]

Ironic, because I swear by Maxlife in my auto vehicles.

 

[Clevy]

Originally Posted By: hardcore302
Tremec states to put in 3.2 quarts. It is factory fill with 4 quarts from Ford, but a TSB by Ford and a statement from Tremec says 3.2 will fix the notchy shifting. That much I have figured out.

Nor for the fluid.
Tremec says Mobil 1 ATF, but people say that is because that's all the have tested. Some people say Syncromesh, but some say no because it will damage parts. Others say stick with non-synthetic Ford or equivalent Mercon V. Others say Amsoil, and others say SECRET SAUCE, which includes whatever plus a quart of Lucas Trans Fix in there.

WTH do I buy tomorrow, lol. I've tried the Mustang forums, and they are always on point with mechanics and mods, not so much with oil and the like. I trust you guys more.

Thanks!


I've been putting in 4 litres every time I change fluids. I've yet to have any problems whatsoever. Hard miles,power shifting and never so much as a single issue