What does Variable Cylinder Engine mean?

[MirandaRose]

Variable Cylinder Engine, abbreviated as VCM, is a Variable Cylinder Management technology developed by Honda. By deactivating specific cylinders, it allows a 3.5L-V6 engine to operate with 3, 4, or 6 cylinders, enabling the engine displacement to vary between 1.75-3.5L, thereby significantly saving fuel. Below are the details: 1. Applicable Vehicles: Variable Cylinder Technology is generally suitable for multi-cylinder, large-displacement models, such as V6, V8, V12 engines. 2. Cylinder Switching: Under conditions requiring high power output, such as vehicle start-up, acceleration, or climbing, the engine will engage all 6 cylinders. During medium-speed cruising and low engine load conditions, the system will operate only one cylinder bank, i.e., three cylinders. During moderate acceleration, high-speed cruising, and gentle slope driving, the engine will operate with 4 cylinders.