On paper, Nissan's variable-compression turbocharged engine should have been pretty awesome. Since it could change its compression ratio on the fly, it promised the power of a bigger engine when you ...

Federal safety regulators are scrutinizing General Motors again after reports that a previous recall repair did not stop engines from failing in hundreds of thousands of trucks and SUVs. The new ...

The federal government is scrutinizing General Motors again, this time over reports of catastrophic engine failures in roughly 600,000 of its full-size trucks and SUVs. The new safety probe raises ...

U.S. airline regulators have ordered inspections on engine fan blades like the one that snapped off a Southwest Airlines plane, leading to the death of a woman who was partially blown out a window.