Variable Cylinder Management (VCM®)
Powered by the intelligence of i-VTEC® technology, VCM® works on the principle that a vehicle only requires a fraction of its power output at cruising speeds. The system electronically deactivates cylinders to reduce fuel consumption. The VCM® engine is able to run on 3, 4 or 6 cylinders based on the power requirement. So you get the best of both worlds: V-6 power when accelerating or climbing, as well as the efficiency of a smaller engine when cruising.
 22 mpg city/31 hwy/25 combined for 4-cylinder models with manual transmission.19 mpg city/28 hwy/22 combined for V-6 models with automatic transmission. 17 mpg city/25 hwy/20 combined for V-6 models with manual transmission. Based on 2010 EPA mileage estimates, reflecting new EPA fuel economy methods beginning with 2008 models. Use for comparison purposes only. Do not compare to models before 2008. Your actual mileage will vary depending on how you drive and maintain your vehicle.