New Heavy Truck EPA Regulations To Require Increased Fuel Economy

The news broke over the weekend that the EPA is expected to propose regulations to cut greenhouse-gas emissions from Class 8 trucks, requiring that their fuel economy increase up to 40 percent by 2027, compared with levels in 2010. A tractor-trailer now averages 5 to 6 miles to a gallon of diesel. The new regulations would seek to raise that average to 9 miles a gallon.  “Trucks account for one-quarter of all greenhouse-gas emissions from vehicles in the United States, even though they make u...