Duramax Diesel Engine: Best MPG In Its Class

The Duramax Diesel Engine 6600 allowed its new owners to benefit from significantly improved fuel economy figures. This fuel efficiency was achieved primarily through the Duramax Diesel Engine application of innovative engineering and technology. The Duramax Diesel Engine features a completely innovative direct injection fuel system working on a common rail which is designed and manufactured by Bosch Corporation. This common-rail direct injection fuel system is able to maximize power in the Duramax Diesel Engine for each and every fuel pulse that is combusted.

Structural Enhancements In The Diesel Duramax Engine

Some of the more important structural enhancements that contribute to the smoothness of the Diesel Duramax Engine include the case-hardening of the engine block, the deep skirt design of the engine block, the aluminum bell housing which is cast from a single piece and also the aluminum crank case which is also cast from a single piece. These innovations are the result of years of engineering research and development by General Motors engineers exclusively for the Diesel Duramax Engine.

The Induction Hardened Diesel Engine Duramax

General Motors engineers were able to optimize the deep skirt block design by implementing computerized finite element analysis in the Diesel Engine Duramax. These computer analyses were conducted in order to increase the balance of the Duramax Diesel Engine, to provide a quieter and smoother drive line and engine operation and to ensure that the overall structure was as rigid as possible. The Duramax Diesel Engine has an induction hardened engine block which is exclusive to it alone. No other diesel engine in this pickup truck class from competitors Ford or Dodge at the time of the premiere of the Diesel Engine Duramax had this feature.

Duramax Diesel Engines Are Easily Serviced

Duramax Diesel Engines features valve-seat inserts which are specially hardened and seat into the cylinder heads which are made of aluminum. This is yet another exclusive for General Motors' Duramax Diesel Engine, as Ford and Dodge did not offer this feature at that time. The valve inserts, hardened in such a fashion, allow for greater reliability and durability, and are able to be serviced in the Duramax Diesel Engines by General Motor technicians in an easier manner.

Piston Cooling In A 6.6 Duramax Diesel Engine

The 6.6 Duramax Diesel Engine employed a gear driven water cooling pump which featured metal gears in order to be stronger and more durable. In many general engines the coolant pump is driven by the belt from the fan, but not the Duramax Diesel Engine. By implementing a design of driving the coolant pump via gears, the overall stresses on the accessory belt are considerably diminished in the Duramax Diesel Engine. The Duramax Diesel Engine also features unique piston spray cooling. Since the pistons on the Duramax Diesel Engine need to absorb the strong ongoing shocks of high combustion temperatures, pressures and thermal loads, it is important that the pistons stay as cool as possible. Since combustion pressures and thermal loads are considerably higher in diesel engines than in gasoline engines, piston cooling becomes vital in the 6.6 Duramax Diesel Engine.

Duramax 6.6 Diesel Engine: 20% Better Mileage

An added benefit to this gear-driven coolant pump with metal gears is that if the accessory drive belt should fail while the driver is operating the vehicle then the truck with the Duramax 6.6 Diesel Engine will not necessarily be stranded. The Duramax Diesel Engine models were designed to provide considerably improved fuel economy. Superseding General Motors 6.5L Turbo diesel, the fuel economy ratings on the Duramax 6.6 Diesel Engine models were an approximate 15% to 20% better: This difference in fuel economy on the Duramax Diesel Engine is particularly noted at general purpose highway speeds.

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