4x4ord wrote:
The Ford does have a significantly larger cooling system than Ram, as well, the Ford is a little more fuel efficient (more of the fuel's energy is being harnessed to do usable work which puts a little less demand on the cooling system) so it should outperform the Cummins on a hot day. It would be interesting to see.
I know my 15's cooling system is not as large as the newer RAM's but towing 35k up long 6% grades in 90 degree weather nothing ever gets close to being hot.
It would be interesting to see all three towing on HOT days for sure.