MDS works, its real, and it makes you get better milage. Its programmed to engage the second you arent in the throttle, it kicks in all the time, once the load has decreased and you are nearly up to speed it kicks in. ITs very agressive at saving you gas.Guys,
Whats the worst MPG I can expect in a Challenger with a Hemi 5.7L? Say I have a led foot, drive 90% city and always with the windows down?
BTW, does the 2010 5.7L hemi have MDS or VVT features that work less in cruising speeds? Is MDS even for real?
Was fuel economy improved from 2007 - 2010 on these engines? Any plans for further improvements in efficiency in 2011?
This happens city, highway, and interstate.
Milage all depends on how you drive. When the car is cold and warming up it runs rich so the milage decreases. Personally winter milage I get 13 mpg, short trips, and I dont drive fast, 1500-2500 rpm, only flooring it maybe 5 times per tank. The reason I get 13 is the short trips with stop and go.
Summer its nearly up to 15. Typical city with more driving it gets closer to 19-20.
Now bare in mind my last car was a 3.5L V6 charger which got 15 mpg city, my 2.4L Caliber that is 900 pounds lighter also gets 15 mpg, so my low mpg is due to short trips.
I think one week while drivign agressive and doing my short trips I got down to about 10 mpg, but you pretty much need to floor it at every start.