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An index of the U.S. economy’s service sector improved in September, the Institute for Supply Management said Wednesday.

Cummins Inc. has received the first Environmental Protection Agency certification for meeting 2014 fuel efficiency and greenhouse gas rules, the engine maker said Monday.

Manufacturing activity in the Philadelphia region contracted for a fifth straight month in September, the Federal Reserve Bank of Philadelphia said Thursday.

Let me understand you correctly: If a driver runs out of time 30 minutes from the yard and is on an electronic onboard recorder, “He either spends the night 20 miles from home or, more likely, breaks the law and comes to the yard anyway.”

Although natural gas has taken some of the limelight away from hybrid drivetrains for trucks, Tier One component supplier Eaton Corp. said it is still committed to electric and hydraulic hybrids, and announced a research plan to reduce the size of hybrid batteries by up to 50%.

The price of the service call to replace a blown truck tire on the road can run about $500, industry experts and fleet managers said, adding that the total costs can be much higher.

Equipment financing activity within the trucking industry rose to $4.17 billion in 2011, a 3.5% gain from $4.03 billion in 2010, the Equipment Leasing and Finance Association reported.

Cummins Inc. widened its lead in the race to sell Class 8 truck engines during the first half of 2012, providing 63,802 units to customers for a 42.2% market share, up from 34.5% a year earlier, WardsAuto.com reported.