MDS System - Description

DESCRIPTION





The Multiple Displacement System (MDS) provides cylinder deactivation during steady speed, low acceleration and shallow grade climbing conditions to increase fuel economy.

The MDS can provide a 5 to 20 percent fuel economy benefit when operating in four-cylinder mode. Depending on driving habits and vehicle usage. Fuel economy is 8 to 15 percent higher than if the engine was operating on eight-cylinders at all times.

MDS is integrated into the basic engine architecture, requiring a minimum of additional parts - four additional solenoids, an oil temperature sensor, a wire harness, eight unique valve lifters (1), and a modified camshaft.

The MDS lifter (1) can be identified by the disconnecting pin (3) on the side of the lifter.