San Francisco Fleet Is All Biodiesel

By CAROLYN MARSHALL
Published: December 2, 2007

SAN FRANCISCO, Nov. 30 — Claiming it now has the largest green fleet in the nation, the city of San Francisco this week completed a yearlong project to convert its entire array of diesel vehicles — from ambulances to street sweepers — to biodiesel, a clean-burning and renewable fuel that holds promise for helping to reduce greenhouse gases.

Using virgin soy oil bought from producers in the Midwest, officials said that as of Friday, all of the city’s 1,500 diesel vehicles were powered with the environmentally friendlier fuel, intended to sharply reduce toxic diesel exhaust linked to a higher risk of asthma and premature death.

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