What a cyclist uses for chain lubrication is one topic that can lead to lively debate. You'll find folks who swear by (or swear at) White Lightning, Boeshield, ProLink, TriFlow, Pedro's, etc. Ultra-distance legend Lon Haldeman is more casual about such things, lubing his bike's chain with whatever leftover oil he finds in discarded gas station oil cans. My own preference is for a lube that holds up well in the wet, isn't excessively messy and ideally isn't adding to Exxon's morbidly obese bottom line.
A couple of months ago I noticed that some guy called Ernesto is sponsoring nice guy Dave Nice. Ernesto and a couple of his buddies have a little company that makes chain lube from soybeans. I needed some lube, so I took a chance and ordered a four ounce bottle of the stuff.
It works. I've been using the stuff for the past couple of months (about 2,000 miles) of commuting and other on-road and off-road adventures in the Pacific Northwest. I've used less than an ounce of the lube in those two months. I use just enough lube to keep the squeaks away and wipe off the excess with a rag. That seems to be the recipe for keeping things reasonably clean and reasonably quiet.
And I like supporting Ernesto and his buddies instead of the guys whose business is built on sucking the remains of dead dinosaurs from the every corner of the globe. It makes me feel like I'm doing my bit to live up to the slogan on my t-shirt.