Overheating 360 new engine

72Blu,
Not only do you need to improve your knowledge base, but also your reading skills. The OP never claimed it was just o'heating at idle [ your post, #135 ]; in post #11 he says the temp climbs when he is driving.
At least TWO well websites that make cooling fans recommend mech fans over elec fans for towing. That is because towing generates additional heat, which is exactly what is happening with the OPs engine.