Multi-Displacement System (MDS) provides full-rated power in V8 form with a 12 to 15 percent fuel economy benefit when operating in four-cylinder mode, depending on driving habits and vehicle usage. Fuel economy will be 8-15 percent higher than if the engine was operating on eight cylinders at all times.
Through calibration and refinement, transitions between four - and eight-cylinder modes are virtually imperceptible to the driver.
MDS is integrated into the basic engine architecture, requiring a minimum of additional parts: four solenoids, an oil temperature sensor and a wire harness. Eight unique valve lifters and a modified camshaft are also required. This makes the system more reliable than add-on systems.
5.7 HEMI V8 Engine
Chrysler 300C and 300C Touring's 5.7L HEMI V8 engine features MDS. During acceleration and under heavy loads such as trailer towing, the engine operates on all eight cylinders. The engine also idles on all eight cylinders for maximum smoothness. However, during cruising and light acceleration, the system deactivates half of the cylinders to increase fuel economy from 5-20%. The amount of fuel economy achieved depends on driving habits, driving conditions and vehicle usage. MDS gives the Chrysler 300C and 300C Touring a unique dual nature, one that is powerful and smooth during acceleration or towing, yet economic and efficient while cruising.
