Go ask your friends in Powertrain who have done testing whether it can work. Yes there is no coolant flow, yes it still provides a benefit. I am not making this stuff up, in my previous work I ran tests and worked with others who have ran tests. Tests with extremely accurate equipment, data logging, and following a strict procedure producing repeatable results.

Please, you guys are not doing others a service to the others on this board here by stating opinion without experience. I am not trying to hurt anyones feelings here, but I think it is important to get correct information out there for others. That should be all our goal when we respond to technical threads.