Thanks again for the input I was looking for. Just for the record, citing the “Test Results Laboratory Test”,
http://www.pelicanparts.com/techarticles/cool_collar/cool_collar.htm:
“Summary: With a constant heat source applied to the oil, the temperature dropped to 202 degrees F (from 220 degrees F.) with five minutes. This translates to a 12% temperature decrease of the heat added to ambient temperature.”
Fahrenheit temps and scale was all I was going by and is where the figure of 12% came from.
Marc
PS Wayne I look forward to purchasing your latest book and CD!