Variable Displacement

Variable displacement is an automobile engine technology that allows the engine displacement to change, usually by deactivating cylinders, for improved fuel economy. The technology is primarily used in large, multi-cylinder engines. Many automobile manufacturers have adopted this technology as of 2005, although the concept has existed for some time prior.

Read more about Variable Displacement:  Theory of Operation, History, Present, Variable-displacement Technologies

Famous quotes containing the word variable:

    There is not so variable a thing in nature as a lady’s head-dress.
    Joseph Addison (1672–1719)