Fuel economy varies with tire type: Those all-terrain or off-road tires with their knobby tread look rough and ready and are designed to get you through rocks and mud.

• 不同轮胎的种类会改变燃料的消耗。比如全地形轮胎和越野轮胎的表面呈多节的形式，这类轮胎表面粗糙，因为它们是为山地和泥地设计的。