Will Bananas Work as Engine Oil?

A few years ago, Jalopnik published an old story https://jalopnik.com/how-bananas-saved-a-citroen-2cv-1720454812 about two guys who were trying to drive a Citroën 2CV around the world in 1948. They ran out of engine oil in the Atacama desert in Chile and used bananas as an emergency replacement. Could that possibly work? Project Farm aimed to find out, but they hedged their bets a bit by using an old lawn mower instead of a car. I would say that's a good move. (via Boing Boing)