The Volvo VNL 730 mid-roof sleeper is designed for pulling flatbed or lower trailers with heavier loads such as fuel tankers or grain haulers.
Higher fuel prices and equipment-altering regulations stand to change the intensity of owner-operators' focus on their rigs' aerodynamics.
Many of those who succeed discover the key to achieving better mileage usually isn't found in changing one driving practice, buying a single additive or spec'ing one component.
Consumer, safety and labor groups have petitioned a federal court for permission to pursue a third round of litigation to overturn the hours of service rule.
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