What Tranny fluid are you running?

[chad1140]

I was thinking of running Catilyn Jenner Tranny fluid, but doubt it would hold up to the high heat.

I kid, I kid, on a serious note though, who has had good luck with non ford ATF. Preferably a full synthetic, and what brand?

 

[ajpturbo]

Amsoil LV ATF....Top tier and a TRUE synthetic...no problems here

 

[BiGMaC]

Amsoil LV ATF....Top tier and a TRUE synthetic...no problems here

Agree^^^

 

[FoMoCoSHO]

Same here on the Amsoil.

Drain and fill at 150 miles.

Will repeat yearly.

 

[chad1140]

Definitely gonna run what everyone is mentioning, how many quarts should I buy and the vehicle has 35K miles should the trans filter be replaced as well?

 

[ajpturbo]

Don't think there is a filter..I don't think there is a pan.......I got a 2.5 gallon jug of lv amsoil atf ..I drained then filled then disconnected one of the tranny cooler lines and started the car and pumped about 2-3 qts out..shut the car off and then refilled to proper level

 

[SHOdded]

x2 - no serviceable filter, no pan.  Just a drain plug.  Have to crack open the trans to R&R the "screen".

 

[pmezo33]

The 6f55 transmission doesn't have a serviceable filter?  Is that the transmission being discussed in this thread?  Ford recommends replacing the filter at 150k miles in my maintenance book.  Am I wrong here?

 

[66 Galaxie]

6F55 does not have a serviceable filter and the 6F50 that it is based on does not have one either.  I can't speak to the longevity of the 6F55 yet but I have 227k+ miles on the original 6F50 in my '08 Taurus X doing drain and fills on the tranny every 30-50k.  The car also has the original PTU. 

 

[jimmyducati]

I have 90k miles on my '10 SHO, going to service the transmission this weekend...
Is the 3x drain and fill sufficient or do I need to go have it flushed? If I drain and fill at home, ill do the 3x first, then likely drain and fill one time, once a year.

 

[Larrylu]

I just did the BG full synthetic service last week. I was at 62K. The highly rated independent shop I used was priced ($229) right between two Ford dealer quotes ($189 and $240) using stock fluid and the BG service came with a limited ($2000) tranny warranty. 

 

[SHOdded]

I have 90k miles on my '10 SHO, going to service the transmission this weekend...
Is the 3x drain and fill sufficient or do I need to go have it flushed? If I drain and fill at home, ill do the 3x first, then likely drain and fill one time, once a year.

Since the transmission has likely never been serviced, the 3x drain-and-fill is the safest & best way to go.  If you do it yearly thereafter, that would amount to one clean machine!

 

[66 Galaxie]

I'm a begin believer in just doing drain and fills.  That's what I will be doing on my Flex ecoboost as it has worked great for me with my Taurus X (227k+ miles on original trans as stated a few posts above)

 

[loweredd]

D4 or D6?

 

[ajpturbo]

D4 or D6?

?

 

[ajpturbo]

I'm a begin believer in just doing drain and fills.  That's what I will be doing on my Flex ecoboost as it has worked great for me with my Taurus X (227k+ miles on original trans as stated a few posts above)

You dont get all the old crap out that way...better off to take a tranny cooler line off and let the car run..all the trash will come out of the converter

 

[66 Galaxie]

D4 or D6?

If you mean the trans in my Galaxie it is a C6


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[66 Galaxie]

I'm a begin believer in just doing drain and fills.  That's what I will be doing on my Flex ecoboost as it has worked great for me with my Taurus X (227k+ miles on original trans as stated a few posts above)

You dont get all the old crap out that way...better off to take a tranny cooler line off and let the car run..all the trash will come out of the converter

Very true, doing drain and fills is only a partial fluid change which does leave old fluid in the torque converter but they do a good job of diluting the old fluid with clean fresh fluid which makes a big difference.  Now up to 237k+ on the original 6F50 transmission in my '08 Taurus X doing drain and fills is working well for me.

 

[Cruxin]

Amsoil LV ATF....Top tier and a TRUE synthetic...no problems here

Do you run the same in the PTU as well?

 

[ajpturbo]

Amsoil LV ATF....Top tier and a TRUE synthetic...no problems here

Do you run the same in the PTU as well?

Yea 75w-140 in the ptu and 75w-110 in the rdu i think...whatever it calls for...cant remember