Full-size diesel pickup truck that gets 37 mpg? Achates says yes

Achates opposed-piston two-stroke diesel engine, as it would be packaged for truck installationCould a full-size pickup truck ever get a fuel-economy rating of 37 mpg? California-based Achates Power believes it can, and its novel engine uses a design that dates back to the earliest days of internal combustion to do so. The company announced its two-stroke, opposed-piston diesel engine for pickup trucks in 2014, and revealed a prototype of...

Tesla Autopilot investigation closed by NHTSA, will continue to monitor

Tesla AutopilotThe National Highway Traffic Safety Administration (NHTSA) closed its investigation into the fatal Florida crash last May of a Tesla using the company's Autopilot driver-assist system. The Model S in question collided with a tractor trailer that turned left in front of it, killing the driver, who was the electric car's sole occupant. At the time...

New bill in coal-producing Wyoming would ban renewable energy for utilities

Grand Teton, WyomingWhile renewable-energy use has grown substantially over the last few years, the regulatory environment remains volatile. Some states have worked hard to stimulate renewable energy, supporting infrastructure projects and offering incentives to consumers who install home solar arrays. But others have tried to restrict renewable energy, often at the...

GreenTech Auto shutters its doors, closes Mississippi factory

GreenTech Automotive MyCarThe harsh reality of high costs and the inexorable heft of the auto industry have claimed another electric-car startup. GreenTech Automotive opened a plant in Mississippi in 2014, first saying it would manufacture a small, two-seat electric vehicle called the MyCar there. It later struck a deal with Chinese automaker JAC Motors to develop an...

GM adds B20 biodiesel capability to Chevy, GMC diesel trucks, cars

2017 GMC Sierra Denali 2500HDWhen it comes to reducing emissions, fleet operators generally have fewer options than individual buyers of passenger cars. There are fewer zero-emission vehicle options for vehicles that see commercial use, although those vehicles often cover more miles every year than the average passenger car. But fleet buyers have embraced alternative...

2016 was planet’s hottest year on record, third new high in a row

NASA's famous 'Blue marble' image of Earth (Wikimedia commons)Despite scientists having reached a consensus years ago, considerable debate still appears to be raging over the reality of climate change. Climate-science deniers can count several people appointed to key environmental-regulatory positions in the incoming presidential administration among their ranks. Despite their views, it is impossible to deny...