So, I guess you both don't have thermostats in your cars you just flow it thru as fast as possible. If that works for you the go for it. Like I said if it's on paper or the web you believe it to be true. But you won't run your own tests on your cars or trucks. I have done the test and I'm happy with that. Tell me than why when a thermostat opens up it's not the same size of the rad hose or any inlets. I could make up my own graphs and write a story about this. Half would agree the other half {you} will disagree. I think therefore I am.:mob::mob: