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Confused! (newbie)

2K views 5 replies 3 participants last post by  Luke243 
#1 ·
Ive read almost all these post's on MDS and still dont understand what it is?! Can someone give me and explination please. And Dumb it down for me hahaha
 
#2 ·
Welcome! Here is the dumbed down version.

When at speed, if 4 cylinders can provide enough power to maintain speed, then it will only use 4 cylinders, thus using less fuel.
 
#4 ·
^^That's the long and short of it. The computer monitors speed and acceleration, then determines if 4 cylinders will do the job, then shuts down 1 cylinder in each pair. Started it in '06 I believe with most of the '06 HEMIs getting it, 100% in '07 on the hemi. It's only on the hemi, the 4.7L or the V6 down don't get it.
 
#5 ·
And it is not offered in the HD HEMI's either.
 
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