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WASHINGTON — Shell Rotella has unveiled its new lineup of lubricating oils, products designed to maintain the hotter-burning diesel engines coming in January 2017 and beyond.

Oil dropped to the lowest close in more than two months as the United States heads to the end of the summer-driving season with ample inventories.

WASHINGTON — Manufacturer Shell Rotella rolled out its new lineup of lubricating oils designed to maintain the hotter-burning diesel engines coming in January 2017 and beyond.

Oil trimmed its biggest weekly decline in three months as investors weighed the largest drop in U.S. output since 2013 and a jump in payrolls against a smaller-than-expected stockpile decline.

NEW YORK — Oil prices surged 4% on June 30, with Brent settling above the psychological $50 a barrel mark, after a larger-than-expected drawdown in U.S. crude inventories.

Two new low-viscosity oil lubricants set to come onto the market, CK-4 and FA-4, will improve fuel efficiency in heavy-duty trucks between 0.5% and 1.5%, according to a new report from the North American Council for Freight Efficiency.

Gov. Kate Brown again called for a moratorium on oil trains in Oregon, after federal regulators released findings June 23 that blamed this month's fiery derailment and spill in the Columbia River Gorge on Union Pacific's failure to maintain its tracks.

Oregon has asked the Federal Railroad Administration to place an open-ended moratorium on oil trains traveling through the state, because preliminary findings of an investigation into the June 3 derailment in Mosier suggest inspectors might not be able to detect the problem that likely caused the crash.