Manufacturer of bio-based motor oil is given the green light, and deals with major retailers seem likely, but the real test will be whether U.S. drivers buy it.
Connecticut-based Green Earth Technologies says more than 90 percent of its motor oil, made partially from animal fat, will biodegrade in just nine days. It's not ready for cars, though.
Racing entity that includes Porsche and Ferrari implements green oil and fuel options. G-Oil, made from renewable animal fats, is a now the official motor oil.
G Oil, made from waste animal fats instead of fossil fuels, is due to reach the shelves of national retailers this spring.