<<What is the best type and grade of lubricant to use for this purpose?
Do you think that rendered bear fat cut with some Lucky Lager could be
used? What is the proper dose?>>

Georgie,

I have found that soap spooning 3 lbs of Crisco  into the air intake
ductwork will prevent any further Petrolis Neglectis within the confines
of the heater box assembly for the period of two winter's.

It will also cause mass and rapid acceleration of the air flowing into
the heater ductwork , and onto my tootsies.

This is by far the best process I have found to prevent dislodging and
removing the dashboard for any ridiculous heater motor replacement.

Removing the dash.
Bah-Humbug.
Time wasted.

<<PS: The next time you have a headache, try taking a couple of Lionel
smoke
tablets instead of aspirin. It might not get rid of your headache, but
you'll have great flashbacks whenever a priest fires up the incense.>>

I have found the American Flyer smoke tablet's to be an excellent remedy
for flagellence, as well a great cure for acid reflux.
The Lionel tabs leave me tense, irritable, and with that burning
sensation.

The bonus plan is I can blow smoke rings outa my dupa, at will.