I've been in Hawaii on vacation lately (hence my absence) and took a whale watching tour. Long story short, the observation ships apparently run on biodiesel! The truck pulled up and started filling up the tank. I was really impressed -- thought I'd pass that along. The 42-foot tour boat runs 2 Cummins Marine diesel engines and ran great on the Bio-D.
Haha, I thought this was going to be about running a diesel engine on whale oil (the first thing a diesel was ever run on, by the way). Some of the maintenance carts at more liberal colleges run on BioD also.