I just jost my 05 Ram Daytona w/ Hemi. Does it have variable cylinder firing based on performance demand?
This feature was on our old International diesel tractors and worked great. Then we seen it in our Cadillac cars, which worked fine.
If the demand going down the highway only requires 4 cylinders of spark and fuel, effectively this should reduce fuel consumption.
With 411 miles, and cruise set at 65 mpg on level highway with avg economy is 17.8 mpg. Not too bad for a full size ram 4x4.