General transmission temperatures
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Trailering
Joined: Apr 2023
Posts: 15
Likes: 5
General transmission temperatures
Afternoon everyone, I have a 2019 250KR with 6.7 diesel, 30k miles.
Had it Krown sprayed yesterday and just gave it a few miles today get it hot and let excess oil burn off.
Typically when it’s cool out I switch display to show transmission temperature and don’t push it until temp gets over 100 F.
Left transmission temp on display today and noticed temp got up to 192.
I must be getting old but for the life of me I can’t remember what temp it normally reads when running.
Can anyone help an old boy and give me an idea what normal running temperature is (not towing or loaded)?
Thanks everyone
Had it Krown sprayed yesterday and just gave it a few miles today get it hot and let excess oil burn off.
Typically when it’s cool out I switch display to show transmission temperature and don’t push it until temp gets over 100 F.
Left transmission temp on display today and noticed temp got up to 192.
I must be getting old but for the life of me I can’t remember what temp it normally reads when running.
Can anyone help an old boy and give me an idea what normal running temperature is (not towing or loaded)?
Thanks everyone
Retired guy fixn stuff
Joined: Mar 2009
Posts: 3,220
Likes: 1,230
From: East TN
Afternoon everyone, I have a 2019 250KR with 6.7 diesel, 30k miles.
Had it Krown sprayed yesterday and just gave it a few miles today get it hot and let excess oil burn off.
Typically when it’s cool out I switch display to show transmission temperature and don’t push it until temp gets over 100 F.
Left transmission temp on display today and noticed temp got up to 192.
I must be getting old but for the life of me I can’t remember what temp it normally reads when running.
Can anyone help an old boy and give me an idea what normal running temperature is (not towing or loaded)?
Thanks everyone
Had it Krown sprayed yesterday and just gave it a few miles today get it hot and let excess oil burn off.
Typically when it’s cool out I switch display to show transmission temperature and don’t push it until temp gets over 100 F.
Left transmission temp on display today and noticed temp got up to 192.
I must be getting old but for the life of me I can’t remember what temp it normally reads when running.
Can anyone help an old boy and give me an idea what normal running temperature is (not towing or loaded)?
Thanks everyone
You are fine at 192*
Mine runs between 207-220 when towing.
ZooDad
Fleet Mechanic
Joined: Mar 2021
Posts: 1,454
Likes: 606
Same here 6R100 2017
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Mountain Pass
Joined: Sep 2017
Posts: 158
Likes: 30
Here is a long video of what tempatures your truck will operate at. New normals are a lot hotter than previous versions for higher efficiency. Watching the video may save you future panic.
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Laughing Gas
Joined: Sep 2017
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Likes: 328
Reading forums and other sites online, I was fully prepared this time when I got a Ford. The Ford Super Duty transmission generally runs about 40-50 degrees higher than my 6-speed or 10-speed Allison. I don't recall what my 2017 6.2 Platinum ran, though.
Mountain Pass
Joined: Jul 2024
Posts: 194
Likes: 198
My 2024 with the 7.2 has a huge range. It will run from 175 all the way up to ~220. Both towing and unloaded. I know it's a different version of the 10 speed from my 3.5 Ecoboost F150 but that one would run 210-220 all the time.
FTE Legend
Joined: Mar 2017
Posts: 31,874
Likes: 9,171
From: Western NY
So the newer trucks will have warmer trans temps than us older trucks...
FTE Legend
Joined: Mar 2017
Posts: 31,874
Likes: 9,171
From: Western NY
And welcome to the 6.7 club.
Tuned
Joined: Dec 2006
Posts: 337
Likes: 39
From: Shenandoah valley, Va
On my old 6.0, normal seemed to be ambient temp + 90*. I have found that my 2018 runs ambient +120* or so. It freaked me out initially, but now I expect my transmission to be 200-220 even when empty
Lead Driver
Joined: Jan 2002
Posts: 8,653
Likes: 4,737
From: Itinerant
