Hey guys i got a 2002 ram 2500, only thing not stock is the airdog 100 pump. I noticed when towing my coolant temp can go up a little, and I was wondering what might be the cause of this, or if theres a way to keep things cooler in the cooling system?

 

Whens the last time you flushed your coolant

 

More load = more power needed to sustain speed. More power = more heat.

How much hotter is it getting?