NOLS SVO

The National Outdoor Leadership School's Educational RV is cruising around the country, and it's powered by straight veggie oil:

"Powered by recycled vegetable oil (RVO), solar power, and sponsored by Silk™, the makers of organic soymilk, this educational program on wheels provides an active, environmentally conscious way to learn about the outdoors and celebrate leadership in your community."

They've got a blog, too: http://nols.blogs.com/