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Last time I towed end of the season last year, ambient temps were high and was towing up a dirt road with about 7k LBS trailer. Speeds were very slow. The 'digital' trans temp gauge showed temps of over 250deg, but the 'analog' gauge on the dash never went about 1/2 way (so no where near the red).
Anyone else seen this discrepancy?
I have the tow package (for what its worth).
In my experience, 250deg+ is approaching too hot.

@Fozzy
Are you going to ditch the louvers up front and mount a cooler? Would you ever upgrade the FMIC?
So who's first? Haha...
https://www.etrailer.com/Transmission-Coolers/Derale/D13501.html
Wow, I like that setup...
Just will have to get some longer tubing. Would you bypass the factory cooler or put this after it?
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Just remember the 10R80 uses a heat exchanger to cool the oil. The tow package give you a larger radiator to help with the heat exchange. The Raptor has an air to oil cooler and I have been trying to find out if it can be retro fitted to the Expy. I haven’t had the time to go to the dealership and look up the parts.
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I think all they are trying to say is that it is the same as the standard. For example the hitch receiver is not upgraded for the 536 package.nope, that doesn't follow its own rules.
if that were the case, then why the X in the Std. Expedition column? I think they may have meant what you said, but they were at least inconsistent about the application.
Makes me wonder about what else they might have F'd up.
Hi all, I just ordered this:
https://forged-offroad.com/product/...age-1-transmission-cooler-kit/?v=4d03911da33d
I'm convinced it will be a perfect fit for my 2013 Expy if I cut the upper hose a little bit. I'll post pics once it's installed.
I have a 2018 max no tow package and pulled a 7klb 32' travel trailer up to the smokey mountains in 91F weather and I did some experimenting.
-normal driving: 205-215F
-towing: 215-223F
-tail of the dragon in sport mode: 228F
The dummy gauge hits "middle" at 150F and stays there until 225F. At 226F it begins to tick up. I never got over 230F (stopped after hard abusive corner carving) so I don't know when the dummy gauge starts saying danger.