5.0 as daily

[Mtnman1]

I feel like i can hear it kick in below 35-40 MPH but it's hard to hear it at highway speeds.

a quick drag calculation shows 276 lb of drag at highway speed and 93 pounds around town. Maybe it's enough to kill the deactivation circuit

Just as a side note. My son has a RAM 1500 with the Hemi.

The cylinder deactivation only kicks on when on the highway.

This makes the most sense. Need power around town, stop/go etc.

Cruising down the highway, much less power is required. Drag dont matter. Keeping a vehicle at 70 requires much less power than driving around town.

This is the same with the 5.0 as far as I know.

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[dhrandy]

Does anyone think the cylinder deactivation kicks in on the highway in eco or normal modes?

I'm pretty sure both, I can't really tell a mileage difference. In Eco the pedal is super heavy, I use that when my 16 year old drives. lol.

 

[dhrandy]

I feel like i can hear it kick in below 35-40 MPH but it's hard to hear it at highway speeds.

a quick drag calculation shows 276 lb of drag at highway speed and 93 pounds around town. Maybe it's enough to kill the deactivation circuit

At 40 mph your front spoiler activates and comes down. I can't tell when the cylinder deactivation is on or off. I have stock exhaust.

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