Best trans and Best ptu fluid

Uh Oh!!! :D

Amsoil and Redline would be my top two choices, but Royal Purple and Valvoline are pretty good too.  With quality fluids (and filters if applicable), the change interval is more important to keep the part functioning perfectly.
 
X2 on ^^. I have been using Redline products since day one of ownership! As for the Trans fluid Motorcraft LV does a good for this application. Z
 
I would never put motorcraft in the same breath as amsoil or a other group Iv oils

I like amsoil LV ATF signature series for the trans and amsoil severe gear for the ptu and rdu all those are group iv oils and are worlds different from the so called fake group iii synthetics

Group iii are fake synthetics that are hydro cracked petroleum

Group iv is real man made synthetic oil
 
AJP turbo said:
pmezo33 said:
AJP turbo said:
pmezo33 said:
I use motorcraft lv for the transmission and royal purple for the ptu.
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Tell me why the difference?
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The difference in what?
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Motorcraft for the trans and royal purple for the ptu?
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Oh ok... thought that's what you were asking.

I guess just convenience.  Advanced auto sells royal purple and i've got one about a mile from the house.  The mercon lv is typically changed every year and i just buy a case off ebay when it's time to change. 

Torque converter died on me at about 90k miles.  Still with the original ptu.  This is where i am now.

 
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