Tracked the SHO

metroplex said:
Group IV base stocks will probably get just as hot but may or may not breakdown quicker.

Correct....so in reality i would just continue to use motorcraft stuff or off the shelf Coastal or wolfs head oils and at least save yourself some money

There has been some good tests conducted by some members demonstrating that high octane fuel and synthetic oils were not necessary

Also while you are at it i would look into drilling a hole in your intercooler to help with misfires....ive heard that helps also
 
Got to remember:  additive packs make the oil what they are.  Once the packs are chewed through, the type of oil makes a difference.  So oil changes should be appropriate to use.

I have heard that Amsoil Sig ATF runs 20-30F cooler than OEM.
 
AJP turbo said:
You mention you have all stock fluids...i cant think of a scenario why anyone would take their car on a track unless they wanted to document at what point failures or symptoms of an abused car.

I would call amsoil and ask if the temps you are seeing is a problem...and you might want to consider using a real synthetic fluid such as amsoil signature series...group iv oils are completely different and seemingly indestructible so i would think amsoils signature series atf 220 is nothing

Maybe you should get some good oil in the trans engine and ptu and the temps may not even get that high

Not a bad idea.

I guess I was looking more for information RE your original contention that over 180 isn't a problem with OEM quality fluids.  You said "220 is barely above normal operating temp" which is 40 degrees above what the link I posted said was to be considered max.

Not arguing your position, only looking for a source as 180 seems to be the only number I can find as a point when the fluid starts to break down.  Learn me...

Oh, and thanks for getting back.  I am sure you're busy, and I appreciate the advise.

 
To be honest im not sure what the operating temp of the 6f55 is..but i wouldve guessed 200

I cant see it being much lower than that considering the trans fluid runs through the radiator and with a stock thermostat the coolant is is at least  190 ish
 
AJP turbo said:
To be honest im not sure what the operating temp of the 6f55 is..but i wouldve guessed 200

I cant see it being much lower than that considering the trans fluid runs through the radiator and with a stock thermostat the coolant is is at least  190 ish
Makes sense.  On a car with no aux cooler, it is going to be pretty close to what ever the coolant temp is, and I agree that's over 180..  Interesting...

More research to be done
 
transmission-fluid-life-expectancy-transmission-repair-guy.png


Okay, a closer look tells me I may have been too conservative.  The chart above really says 220 is the start of where "things go bad".  When I read closer, he says under 180 for max life of fluid.

Thanks for making me think harder on this :)
 
AJP turbo said:
To be honest im not sure what the operating temp of the 6f55 is..but i wouldve guessed 200

I cant see it being much lower than that considering the trans fluid runs through the radiator and with a stock thermostat the coolant is is at least  190 ish

the trans cooler is on the cool side of the radiator, so the coolant will cooler than 190
 
For what it is worth, I had an Aeroforce gauge on my MKS for most of its life and now have the gauge on my Continental.  It takes a LOOOOOG time for the transmission to reach maximum temp but I would eventually see 200-205 on the MKS after driving 20 miles or so at higher Interstate speeds.  Strangely, I never really saw maximum temps at the track where I would expect to.  Instead, I always saw max temps when running at higher speeds (80 MPH or so) on the highway.

I haven't had the Conti to the track yet but on a recent trip to Texas cruising down the Kansas turnpike at around 80, I was seeing around 205.  Just driving around town or at lower speeds on the freeway, it only runs around 190 and and doesn't reach that until after maybe 20-25 minutes of driving.
 
My tranny temps typically have hovered around the 180 range (or slightly less) on most days, after having installed the aux retro cooler.

Some expereinces contained within this thread I authored:

http://www.ecoboostperformanceforum.com/index.php?topic=522.0

On hot days, 90 degrees+ and driving the e-way for any extended period, or racing at the track, I would see it rise over 190 and as high as 200, but no higher.

I have a new aux trans cooler that has a fan incorporated with it, from DERALE, and for the time being, it has been collecting dust on the shelf.

I'll get to it this year, but the OEM one from Ford has performed above my own expectations.

Hope that is of some help to the discussiom at hand.



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