Quote:
Originally Posted by oil pan 4
Running the fan with the engine off and no coolant flowing doesn't seem like it will do much.
|
this would be my reason not to. there might be a small thermal siphon effect going on if the water pump isn't spinning to move coolant, but otherwise it is entirely stagnant. what is in the radiator would be cooled, but nothing else. at that point, the air already moving through the radiator from coasting is probably more than sufficient to cover that task.