In a message dated 98-05-21 14:49:51 EDT, turinsky@JUNO.COM writes:

<< However, I've notice that I can get the coolant temp. needle to drop
 about a needle's width by cranking the heat to FULL. The needle will drop
 even a little further if I turn both fans on full. Why is this? Anyone
 have any ideas? I've never heard this topic come up on the List before. I
 like having a cool engine, but I getting roasted in the Westfalia! :-) >>

DUDE!!! ;<) it's common sense...  your heater cores are sucking the heat from
the hot coolant running thru them, and blowing it into the interior....
less hot coolant circulating back thru the lines = coolant temp drops.

a mind is a terrible thing to waste...  ;<)
just kiddin..  ;<)
chris