Organic chain lube

Having environmentalist inclinations I often wonder whether non-petroleum-based lubricants could perform adequately on the bike. Apparently commercially available olive oil might as well go on your chain rather than down your throat. I even recall some letters to bike magazines regarding the use of vegetable oils for eco-friendly chain lube.

I'm not quite ready to begin trials yet, but I have started considering the lubricating capabilities of dog slobber. The cellist and I recently adopted a geriatric terrier, so I am once again dealing with dog bowls. Washing Scruffy's bowl I have been reminded once again how persistently dog drool retains its slipperiness even after vigorous scrubbing with dish soap and water. Since wet-weather performance is a critical characteristic of chain lube, this durability may be a key advantage to dog saliva.

Dog drool may function as a true dry lube. It does seem to dry, but reactivates to full sliminess as soon as water hits it. So: does it reduce friction between link plates and rollers and does it act as an effective corrosion barrier? You've never seen a rusty dog tongue, have you?

The next step will be to treat sections of chain in my drawer full of leftover links and expose them to various environmental conditions. I might get to that some day. For now this remains a "thought experiment," which is the high-falutin' science term for daydreaming.