COPENHAGEN, Denmark, March 15 (UPI) -- A Danish researcher said the government's push to increase the number of diesel cars on the road has resulted in more pollution.
TOKYO, Jan. 5 (UPI) -- Japanese auto manufacturers are set to release diesel cars that use advanced technology and are being described as "clean" by auto industry analysts.
DETROIT, Jan. 2 (UPI) -- U.S. auto companies are turning to diesel engines as they deal with new fuel-efficiency standards mandated by Congress.
WASHINGTON, March 26 (UPI) -- The Environmental Protection Agency Monday awarded $150,000 to the Mid-Ohio Regional Planning Commission for a clean diesel initiative.
WASHINGTON, June 5 (UPI) -- The Environmental Agency has quietly issued a rule requiring U.S. oil refineries to produce ultra-low-sulfur diesel fuel to substantially reduce emissions.
WASHINGTON, Sept. 10 (UPI) -- With U.S. gasoline prices more than $3 a gallon, using vegetable oil to fuel diesel-engine cars and trucks, has become more popular.
WASHINGTON, May 10 (UPI) -- U.S. Energy Secretary Sam Bodman said Tuesday diesel fuel still has a role in the Bush administration's energy policy.
WASHINGTON, May 11 (UPI) -- Environmental Protection Agency head Mike Leavitt signed new rules Tuesday cutting emissions from off-road diesel engines.
AUBURN HILLS, Mich., Feb. 4 (UPI) -- Failures of ignition coils in 2001 and 2002 cars have prompted Volkswagen of American Inc. and Audi of America Inc. to recall about 530,000 vehicles.
LOS ANGELES, Aug. 27 (UPI) -- The prospects for cleaner-burning fuels brightened Tuesday with announcements about the president's Clean Coal Initiative and the benefits of clean-diesel vehic
