Your bus (and ferry) ride is a cleaner ride

In partnership with Diesel Solutions, all buses run by King, Kitsap, Pierce and Snohomish transit agencies are now cleaner powered.

Most area transit fleets have installed retrofit devices in a multi-year commitment to reduce toxic and fine particle emissions by up to 90 percent. 

Additionally, King County Metro has been successfully using ultra-low sulfur diesel in their transit fleet since July 2001, years ahead of the 2006 federal fuel standard requirement.   And the newest buses in Metro’s fleet, over 200 of them, are hybrid coaches operating on both diesel and electric (battery) propulsion.  Pierce Transit is a pioneer in the use of alternate fuels.  A 1986 demonstration project to determine the feasibility of compressed natural gas (CNG) has led to the transition to an all-CNG, 189 bus fleet.

Other Puget Sound transit fleets use ultra-low sulfur diesel or biodiesel, many combining cleaner fuels with hybrid, dual-powered or retrofitted buses.

And for over-water transit, the Washington State Ferries are using low-sulfur diesel instead of non-road diesel, a significant improvement of 500 parts per million (ppm) sulfur compared to 3,400 ppm sulfur.  And one ferry run is testing ultra-low sulfur diesel fuel.

Additionally, the Kitsap passenger ferry has rebuilt their engine to operate more cleanly and at the level of new engine standards.