The city of Seattle is determined to reduce its greenhouse gas emissions. One key to their strategy is the use of biodiesel in the city’s fleet vehicles.

Seattle’s looking ahead to a cleaner environment for future generations. To achieve this, the city fleet directors have looked around for the best way to reduce carbon pollution, and they settled on biodiesel. The Seattle fleet burns about one million gallons of diesel a year, which means they now use nearly 200,000 gallons of biodiesel each year. And to find a source for the renewable fuel, they didn’t have to look far.

All of the biodiesel used in Seattle’s diverse fleet of heavy duty vehicles is made from reused cooking oil, half of which is from the city’s own restaurants. For a city that prides itself on delivering the best pick-me-ups, biodiesel has become pretty potent.

An estimated 65%
of Seattle’s greenhouse-gas emissions comes from transportation

47% of Biodiesel is made from soybean oil; 14% is inedible corn oil, 13% comes from animal fats and the remainder from canola oil, recycled cooking oil, brown grease, and other materials.

The 2014 Green Fleet Action Plan aimed to reduce fleet emissions by 42% by 2020; Biodiesel remains a central part of the strategy.


Biodiesel is fueling more heavy-duty vehicles in more states and more communities. Explore how people are enjoying the Promise of MORE.


How is Biodiesel working for you? We’d love to hear MORE examples of Biodiesel delivering LESS.