Trans fluid question

[graveyard]

HEY GUYS I am going to change trans fluid in my 04 cobra t-56 i belive it is,i put a shifter in the other day and noticed it was a little dirty,i know they are different opinons on oil to use but what is the best oil to put back in the 6-speed or should i use what ford calls for in it let me know and how much does it take to fill it back up,car has around 40,000 miles
Thanks guys:beer:

 

[03cobra#694]

You`re gonna get about a dozen different answers. That being said, I use the RP stuff.

 

[graveyard]

You`re gonna get about a dozen different answers. That being said, I use the RP stuff.

I like royal purple i herd good things about it have you used it a long time?:shrug:

 

[Savn4Mods]

I agree you will get MANY answers to this and it is all subjective without any data to prove which is better and why.

I have used RP for quite a while and so has my dad in his mustang. No complaints.

 

[timspony]

I used this Royal Purple Synchromax Manual Transmission Fluid at AmericanMuscle.com - Free Shipping!

 

[graveyard]

I agree you will get MANY answers to this and it is all subjective without any data to prove which is better and why.

I have used RP for quite a while and so has my dad in his mustang. No complaints.

Thanks guys for the imput:beer:

 

[greengt88]

RP here too, Been in there for about 10k mi. Really helped out the shifting issues, well, atleast when it's warmed up. Gonna switch it to Amsoil this time around. Not sure which of their fluids to use in it though. any suggestions??

 

[cobracide]

RP here too, Been in there for about 10k mi. Really helped out the shifting issues, well, atleast when it's warmed up. Gonna switch it to Amsoil this time around. Not sure which of their fluids to use in it though. any suggestions??

AMSOIL Synthetic Automatic and Manual Transmission Fluid

 

[greengt88]

^^Muchos Gracias^^ I looked at the site, i just couldn't decide which was the best choice. 4qts right? I actually signed up for a 6mo. trial membership w/ Amsoil, u get an additional 25% off of the price. It cost $10 with the order i placed for oil/filter. It's great stuff, one of the top 3 oil companies for sure.

 

[cobracide]

No problem, sign up and put your cobra in "my vehicles" and the amsoil site will show you what you need.

Capacity 3.9 L (4.1 qt.)

Some 03-04 Cobra Specs. - Ford Mustang Forums

 

[spitin venom]

GM/Pennzoil synchromesh.

 

[04nccobra]

I had my T56 oil changed to Amsoil product, not sure which one though. The transmission feels great with it but I do get a strong transmission oil smell in the car from time to time which was not present prior to the changeover. After researching this issue it is not uncommon. I will probably change it over to another brand soon to see if the smell goes away.

 

[jrgoffin]

Here is the answer you will get directly from Tremec if you ask about the T-56:

"Thank you for your interest in the Tremec Product Line. We recommend Mobile 1 synthetic AFT for your application. Please contact us if we can be of further assistance."

 

[Jimmysidecarr]

Another happy Royal Purple user here.

It's been in for about 4 years. RP in the IRS(no cooler) and engine(road race pan) too.

RP makes me and my 04 ->:-D

 

[HoosierDave]

Just last month I swapped out my stock fluid for Royal Purple, and I can tell a definite improvement. The transmission seems less "notchy" now.

 

[SpectorV]

mine is due for a change... I will probably put OEM fluid in it, drives fine so far with it.