Next-Gen Cylinder Deactivation: V-8s Using Two Cylinders, 20 Percent MPG Boost?

Cylinder deactivation has become an important tool for squeezing better fuel economy out of larger-displacement engines. It allows engines to shut off fuel supply to some of their cylinders under light loads, effectively cutting displacement when extra power is not needed. That’s typically accomplished by deactivating no more than half of an… …read more