If I have a V-6 or V-8, can I disable half of the cylinders to obtain more mpg? I do not care about loss of horsepower to be honest most people don't, the bottom line is more mpg.
This would not be a great “do-it-yourself” project for the average backyard mechanic. There are many variables to a successful cylinder deactivation system, and you simply can’t disable half of your cylinders to save fuel.
Automakers such as Chrysler, General Motors and Honda offer cylinder deactivation systems. GM’s active fuel management uses a two-stage valve lifter that closes intake and exhaust valves to de-active cylinders.
Not only that, but factory engineered systems are computer-controlled and look at multiple engine variables and sensors to choose the right situation to shut down cylinders. Automatic changes by an electronic throttle also make the system as seamless as possible to the driver.
Models that offer a cylinder deactivation feature include the following cars, SUVs and trucks:
See if your question has already been asked and answered
Your question has been successfully submitted to Ask.cars.com. It will now be reviewed by our editors and we'll answer it soon if we think it's a useful question. You will be notified via e-mail when the answer is posted. Ask.cars.com tackles your questions about new cars and the car-buying process. Unfortunately we can't answer questions regarding:
Have our experts answer any of your questions about new cars.
Email us at firstname.lastname@example.org