The reason I ask is I'm in the market for a newer,low mileage Ram 1500 with the 5.7 Hemi.

I'm curious about the multi-displacement-system on the 2006 and newer Hemi's.
It turns off 4 cylinders when not needed. It supposedly shuts off fuel and spark and also has some special lifters on those cylinders.

Anyway, is it a smooth transition?
Have you had any problems with this system?
Does it affect towing ability?
Any thoughts on long term durability?

Thanks

Jeff