The EC250E crawler excavator from Volvo Construction Equipment delivers a 5 percent improvement in fuel efficiency over past models. This efficiency is not only due to the Tier 4 Final/Stage IV-compliant engine, but also a range of features the manufacturer says optimizes flow and minimizes pressure losses in the hydraulic system. The ECO mode is designed to reduce fuel consumption without performance loss in most operating conditions. The operator may manually control flow to the hydraulics using the integrated work mode system. The unit can be equipped with optional automatic idling and auto engine shutdown systems. When controls are inactive for a preset time (between three and 20 seconds), engine speed is reduced to idle. When a machine has been motionless for five minutes, the engine automatically turns off. 828/650-2000; www.volvo.com/constructionequipment.