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ORLANDO, Fla. — A fuel-optimization module acquired 12 months ago has since become a leading growth product for software vendor TMW Systems, which held its annual user conference in the heart of this resort-rich peninsula last week.

Clean Energy Fuels Corp. said Monday it will own, operate and supply fuel for new compressed natural gas public access stations to support ground operations at airports in Atlanta and Oklahoma City.

American Trucking Associations urged quick government review and approval of a comprehensive, estimated $700 billion plan by the Treasury Department to buy bad loans from financial institutions.

The U.S. economy grew at a slower pace than originally estimated in the second quarter, expanding by 2.8%, the Commerce Department said Friday.

The U.S. economy grew at a slower pace than originally estimated in the second quarter, expanding by 2.8%, the Commerce Department said Friday.

A federal appeals court last week denied American Trucking Associations’ request for an injunction to block the Oct. 1 start of the clean trucks program at the ports of Los Angeles and Long Beach.

From maintaining optimum air pressure to avoiding jack-rabbit starts, a truck driver’s actions affect not only the life expectancy of tires but also a vehicle’s fuel efficiency.

Diesel fuel’s national average price fell 6.5 cents to $3.958 a gallon, the 10th straight weekly decline and the first time it has fallen below the $4 mark in almost six months, the Department of Energy said Sept. 22, although a surge in crude oil prices added uncertainty to the outlook.