Breech In Engine Compartment

Not so much a question rather than a finding. Upon advise from Jon, (shameless plug) The Volkswagen Club of Athens, I plugged the hole in the engine tin that served the preheater hose from my bath. I actually just mocked it. I connected a pipe to the bath and ran it through the hole with nothing connecting on the other end. I dropped 40 degrees or so just by making this one change. That was measured in oil temp. Point being, any breeches in the engine compartment can have adverse reactions on engine temps.

The best heat reduction for the money is a remote oil cooler. However, 40 deg. is good for just pluggin a hole in the tin.....