I ran it 3 times within the last month and so far so good. Ran her on the road for the first time since putting the radiator in. Went to the local car show, temp was around 85 out. Coolant temp never got over 180 even idling around for 5 minutes looking for a parking spot. Coolant temp was fluctuating between 175 and 180 so i assume the system is cycling off of the thermostat which is a high flow 180*. We will see if the temps go up any higher come summer when it gets 95-100 out. Before with the other radiator i was seeing about 190-195.