[glennpm]

You need Malo-Oil. :-)

"Trico Maro Oil was a specific light oil recommended in historical service documents (such as the 1981 Model "A" News and 1979 Skinned Knuckles) for lubricating Trico vacuum windshield wiper motors to restore life to dried packings and improve cleaner action.

Current Availability: The oil is no longer available under the specific name "Trico Maro Oil."
Recommended Substitutes: Enthusiasts and technicians now use various alternatives, including Marvel Mystery Oil, air compressor tool oil, refrigerator oil, air conditioner compressor oil, Mobil Vacuum Pump oil, or neatsfoot oil (specifically for older motors with leather seals).
Usage Context: The oil is applied via a short hose connected to the motor's vacuum port while the wiper is cycled to draw the lubricant into the internal mechanisms."

I have used and have great luck with air compressor oil for the wiper and my Columbia canister