I wonder how use of different octane fuel effects this? How about warm vs cai?
One of the way guys pull off these big mpg numbers is to milk lean burn or what ever system the vehicle has in a pulse and glide situation. So lets say you can enter this 4 cylinder mode at 70mph and maintain it as you slowly slow down to 60, then charge back to 70 mph and repeat.
Basically a pulse n glide, but instead of turning the engine of and shifting to neutral you just work the throttle to enter the 4 cylinder mode and hold it til you reach the bottom speed of your glide.
Quote:
Originally Posted by pgfpro
I have cylinder deactivation on my 2013 GMC Sierra Z71.
Instant readings 18 mpg disable, and 24 mpg enable.
I wish GM would of made it more usable in a broader range then they did. It's only comes in at very very light load. When activated it does help with fuel mileage. I could see it working great in areas where the terrain is very flat.
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