6.4L Hemi mpg
All hwy, no trailer.
Forum Discussion
FishOnOne wrote:
I think the key component for a 6.4 to achieve good fuel economy as demonstrated by the OP is for the engine to be able to run in the 4 cylinder mode. I suspect running into a stiff headwind or running larger tires will prevent cylinder deactivation and fuel economy will suffer.
I'd agree with that.
