Ford diesel tries, quietly, to silence predecessor's quality issue

摘要

The first thing you notice about Ford Motor Co.'s new 6.7-liter Power Stroke diesel truck engine is how quiet it is. Standing next to it, you wouldn't know it was a diesel unless someone said so. The engine debuts early next year in Ford's revamped line of Super Duty pickups. Ford won't talk about horsepower and torque until the Texas State Fair on Sept. 24. But auto writers recently got a preview.