392/A8 cruising at 72 mph
28 mpg with MDS
24 mpg without
So it's worth 4 mpg for me. I will say that about 72 is about as fast as it will go and remain in MDS, above that speed or in a headwind it won't hold it and will kick out, still not bad mpg for a 392.
Sent from my SM-N960U using Tapatalk
The MDS MPGs I referenced in my first post were calculated on a trip to Atlanta and back. That number should be about as representative of real-life expectations for me and my car as there is. But the non-MDS MPGs I referenced was taken over a much smaller sample size - during a trip out of town that spanned less than 500 miles (a smidge over 400 actually
). Plus that trip included some fairly uncommon scenarios that would have all combined to lower my non-MDS MPGs (extended idle times, extended 1st & 2nd gear driving on winding back-roads due to a fog-induced detour, a couple extended runs up to and cruising at 120 mph, etc.
In fact, I wouldn't be surprised if I could have come close to matching the MDS MPGs during this non-MDS trip if the weather had been clear and I were able to (and wanted to, which I don't) hyper-mile it. Which, if true, doesn't cast the MDS tech in a very favorable light IMHO.
said, it's all about the cumulative numbers that the manufacturer can claim over a fleet of vehicles so they are considered to be within spec for the CARB and CAFE requirements...I guess I have just been (subconsciously) considering MDS something of a black-magic, voodoo, wonder-thing that could help a stump puller get the MPGs of a SMART car at the flip of a switch (or actuation of a solenoid, etc.), but that's just not realistic or reasonable to expect of technology in such an early stage.
Maybe in 20 years the Hemi can go all Prius with just a thought, but not yet, and I'm actually just fine with that.