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An American Trucking Associations official asked a congressional panel to set a national speed limit of 65 miles per hour, as part of a series of steps ATA said would support the trucking industry’s efforts to reduce fuel consumption and address the escalating cost of diesel.

Your front-page article April 7 about auxiliary power units possibly saving on fuel quoted an APU maker’s spokesman who stated (like many others I have seen) that idling truck engines use up to 1.8 gallons of fuel an hour.

A key Congressman said lawmakers should help the trucking industry cope with diesel prices that have risen 45% in the past year, Bloomberg reported.

With oil soaring to new records — crude surged past $122 a barrel on Tuesday for the first time — federal regulators are considering stricter regulation of the oil industry, the Wall Street Journal reported Tuesday.

The automobile industry is focusing on state lawmakers in an effort to head off any plans to regulate greenhouse-gas emissions similarly to California, the Wall Street Journal reported Monday.

Competition among fuel-card providers to keep major fleets is intensifying as carriers seek to mitigate the $4-a-gallon cost of fuel by paying closer attention to how it’s purchased.

U.S. retail diesel prices set a record for the third consecutive week as the national average rose 3.4 cents a gallon to $4.177, according to data from the Department of Energy.