After an eight-month test, a Tri-Met test bus has realized a ten percent saving in fuel consumption by using a NASCAR-inspired cooling system.

TriMet teamed up with Michigan-based EMP Inc. to produce the nation’s first transit bus cooled by a cooling system that runs on electricity. The electrical fans use less engine power, resulting in better fuel economy.
Tri-Met's press release explains how>>

Speaking of fuel, did you know that almost all diesel vehicles at Portland Int'l Airport use biodiesel? All container-handling equipment at Port of Portland's marine Terminal 6 as well as rehabilitation construction equipment used on PDX taxiways is fueled with ultralow sulfur diesel fuel. This type of fuel has had the sulfur content reduced from approximately 500 parts per million to 15 parts per million.

Port of Portland invites public commentary.
Attend a public meeting>>