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Old 10-01-2014, 08:20 AM   #51
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Sorry took a bit to give an update on this.
I installed the 6.0L tranny cooler and that thing is 4 times the size of my old cooler. We towed the 16,000 lb. 5er up and down hills at 60 to 65 and the tranny never got over 186 deg. It mostly stayed between 173 and 180 so I'm real happy camper now with a cool tranny. Oh unloaded it stays on 140 deg.
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Old 10-01-2014, 08:54 AM   #52
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On my GMC 2500 towing 12,000 my trans temp has never gone above 160 even when it was hot out or climbing in the mountains.
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Old 10-01-2014, 09:01 AM   #53
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On my GMC 2500 towing 12,000 my trans temp has never gone above 160 even when it was hot out or climbing in the mountains.
That's a good thing.
Ford under sized the tranny cooler on the 7.3L engines for towing real heavy loads, but on the 6.0L engines they made the coolers plenty big enough, that's why I installed one of them and it fits in the factory spot the old cooler was located in perfectly. At least Chevy didn't under size yours, I guess Ford waas asleep when they designed my 1 ton truck.
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Old 10-01-2014, 09:17 AM   #54
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Originally Posted by mud yapster View Post
That's a good thing.
Ford under sized the tranny cooler on the 7.3L engines for towing real heavy loads, but on the 6.0L engines they made the coolers plenty big enough, that's why I installed one of them and it fits in the factory spot the old cooler was located in perfectly. At least Chevy didn't under size yours, I guess Ford waas asleep when they designed my 1 ton truck.
Of course you are towing 4,000 more and with your change your doing pretty good as far as temps.
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Old 10-01-2014, 10:55 AM   #55
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I know the newer trucks are nice but I just can't bring myself to fork over the cash when mine is still like new but one of these days I'm sure I will. I bet that new 6.7L pulls real good. My 7.3L does a good job but those new 6.7L I hear are even better with more HP and torque.
I never had to worry to much about my tranny temp pulling my 35' travel trailer the temp always stayed around 185 to 195 but it only wieghed 8000#. Now I'm pulling double that so I had to upgrade my tranny cooler. I still like my truck but I know the newer 6.7L would tow it easier than this old 7.3L
If your truck is dependable, I'd keep it till the wheels fall off. I have a new ram 2500 with 6.7 and you can only get them in a 3.42 rear axle which is not adequate for heavy loads. The 3500, you can get 3.73 and 4.11. There's so much polution equip on these new trucks that they run very dirty oil since the egr is constantly sucking soot into the engine to reburn it. The torque seems high but the torque curve only developes the peak torque at 1700 rpm. Anything over or under that, it falls off drastically. Honestly, I wish I had my 1995 Dodge manual tranny back. It didn't have the power or torque like this new 2014 but pulled just as good and I got 13 to 15 pulling my 6000 lb trailer.
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Old 09-11-2015, 03:46 AM   #56
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I know this thread is a little old, but thought I'd chime in.
My brand new 2016 F-250 transmission temps are 192-197 when not towing (although that is in FL summer temps, 85-95 deg), and have reached 208 when towing (mostly flat in FL).
I sure hope that guide is somewhat outdated, and unrealistic, since it seems the new F-250 has high transmission temps just cruising without any extra load.
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Old 09-11-2015, 04:02 AM   #57
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Originally Posted by leefl View Post
I know this thread is a little old, but thought I'd chime in.
My brand new 2016 F-250 transmission temps are 192-197 when not towing (although that is in FL summer temps, 85-95 deg), and have reached 208 when towing (mostly flat in FL).
I sure hope that guide is somewhat outdated, and unrealistic, since it seems the new F-250 has high transmission temps just cruising without any extra load.
This isn't accurate for newer transmissions. Mine also runs in the 190s and is heated by the engine water (210 deg thermostat) to that temp.
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Old 09-11-2015, 04:23 AM   #58
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Quote:
Originally Posted by leefl View Post
I know this thread is a little old, but thought I'd chime in.
My brand new 2016 F-250 transmission temps are 192-197 when not towing (although that is in FL summer temps, 85-95 deg), and have reached 208 when towing (mostly flat in FL).
I sure hope that guide is somewhat outdated, and unrealistic, since it seems the new F-250 has high transmission temps just cruising without any extra load.
Where are you getting those readings? I'm at 160 empty and a high of 185 towing.
2016 trucks may be better regulated now and may never get much higher than 208. I wouldn't be concerned. You should be changing the ATF @ 30,000 miles at the most. If primarily towing change it in shorter intervals.
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Old 09-11-2015, 11:18 AM   #59
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I see slightly over 200 when pulling a long mountain grade. I always back off to keep it under 200. Normal towing, I stay under 180. Empty 168 or so. This is a 2014 RAM/ Cummins.
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Old 09-11-2015, 11:31 AM   #60
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I remember, when I had my ram..
Starting it up mid January, and seeing the trans and oil temp at -21c... Ha! I think I'll just let you warm up a bit before I go anywhere.


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