One thing I can say with complete conviction: at least one of us is wrong.
Step in if you think this is wrong.
From what I think you are saying, speeding up the flow of water through the radiator somehow negatively impacts the ability of the coolant to transfer heat to the radiator. If we carry that concept to its logical conclusion, it would seem that as we speed up the flow the, coolant temperature would go up and the temperature of the radiator would go down.
Similarly, increasing the airflow over the radiator would negatively impact the transfer of heat from the radiator to the air, so, it would stand to reason that engaging the fan clutch would cause temparatures to climb. (Maybe this is why my '95 ran hotter when I drove faster... 
)
Don't get me (completely) wrong. I'm not saying the phenominum (sp?) doesn't occur, just that the reasons presented in "common wisdom" do not account for the effect.
Last edited by JohnC; 10-26-2006 at 10:02.
The Constitution needs to be re-read, not re-written!
If you can't handle Dr. Seuss, how will you handle real life?
Current oil burners: MB GLK250 BlueTEC, John Deere X758
New ride: MB GLS450 - most stately
Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510
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