Also called multiple displacement, displacement on demand (DOD), and variable cylinder management, in reference to automotive engines.

Cylinder Displacement technology merely deactivate some of the engine’s cylinders when they are not needed. This temporarily turns a 8- or 6-cylinder engine into a 4- or 3-cylinder engine. This technology is not used on 4-cylinder engines since it would cause a noticeable decrease in engine smoothness.

Through the onboard computer, the engine picks up signals from sensors and switches, which tells the engine when to deactivate cylinders under low load conditions to save fuel. Of course it works the other way too, if you need more power to pass a car, the necessary amount of cylinders will activate. Combine this with VVT and in 90% of the cases, a noticeable improvement in performance and fuel mileage is achieved.

We tend to think these systems are complicated and scary, they are. That is why the mechanic of today has to be smart, literate and be able to comprehend directions. Repairing the new systems requires more education. The best engine suppliers and repair shops send their technicians and parts people to the appropriate schools to stay on top of any updates in the systems.

One of the things that separates GotEngines.com from the rest of the pack is that the salespeople you talk with when you call them @ 1-877-268-0664 go to training classes too, that way they know exactly what you may need after a good conversation. If you need a good used engine, Trust me, these people want your business. It shows in their commitment to customer satisfaction.