Grocery giant Safeway is converting its entire fleet of trucks in Arizona to 20% biodiesel.

The Arizona Star has more about the green grocer and the green fuel:

For the last 30 days, the company has worked to convert all 79 of its Arizona trucks to fuel that is 20 percent biodiesel made from domestically manufactured virgin soybean oil.
The conversion will reduce Safeway’s carbon dioxide gas output by 3,603 metric tons — equivalent to 780 passenger cars not being driven for one year, said Nikki Daly, company spokeswoman.