The Best Half Ton Towing Truck - Ike Gauntlet

wilber1 wrote:

ShinerBock wrote:

wilber1 wrote:
Two days ago we pulled the rig in my signature up 4000 ft from Bakersfield to Tehachapi, GCWR would have been between 21,000 and 22000 lbs. Tranny temp at the bottom was 130F and when we reached the top it was 145F. OAT was between 40 and 45F. Almost all of that would have been due to several 4-5-4 shifts that took place during the climb.

When you talk about adding power, different versions of the ZF 8HP are used in everything from 200 HP four bangers to the 840 HP Dodge Demon.

I have a 2014 CTD and my temp generally stays around 170 when not towing and has gotten up to 180 when towing once. I am amazed that you can pull your 5ver up hills and maintain temps 30-40F less than what mine does when not towing.

Maybe I am pulling less weight. Maybe because it was a cool day. The hill also started about 20 miles after we began our day and the transmission might not have been up to normal operating temp when we started up the hill. I was still only showing 145 when we got to the top. I've seen mine at 180 puling the same loads up grades in the summer. My real point was that there was only about 15 degrees difference between start and finish. Of course the ambient temperature would also have been lower at the top of the hill.

My transmission is 165-170F unloaded even if it is 20F outside. The only thing that colder OAT's do to my trans is extend the time it take to reach 170F, but it will generally get there within 20 minutes of driving. So a max of 145F even if you weren't towing is odd to me.