Transmission Fluid

[FastFocus]

Ok, so i'm going to tackle changing my transmission fluid and filter. Question is, how much fluid does the 5R110 hold. And, what kind of fluid can be used? I run Amsoil ATF in my automatic drag car, however i had to add a friction modifier to make it work in my transmission. Can i use the Amsoil ATF in the 5R110? Does anything need to be added?

[bugstroke]

it takes the motorcraft mercon SP tranny fluid and make sure u get the internal and external filter. 9-10 quarts should be plenty but i usually buy a whole case of 12.

[korterman1]

I have mine serviced yearly at a local trans shop for around 125.00. And i don't have to hassle with old fluid or filters.

[Baddestt]

Use only what Ford requires: MERCON SP ATF (synthetic). This is what the torque shift requires. Empty fill is 18 quarts and that includes filling up the torque converter. There is no drain for the torque converter...the fluid must be flushed out using the trans coolers. Most just take to ford for the flush and fill service

[FastFocus]

ok, so i'll just take it to the dealer. So i'm looking at $120ish for the service?

[Baddestt]

Ahhh, I think its a lil more expensive than that bud. I paid $275 for the full flush, installed 18 quarts of fresh Mercon SP, new internal and external tranny filters at a local Ford dealership here in Tampa, FL. Service is required every 30,000 miles

[FastFocus]

ok, do i honestly need to do a "flush"? or can i just drain the fluid in the pan and replace the filters. I can do that myself for less than half that cost.

[Baddestt]

Originally Posted by FastFocus

ok, do i honestly need to do a "flush"? or can i just drain the fluid in the pan and replace the filters. I can do that myself for less than half that cost.

Yhea you can...but keep in mind that you will be mixing old tranny fluid (torque converter) with new (trans pan). There is no drain for the torque converter, this is why it has to be flushed out through the coolers.