UGA40, You will need to log your own data. It would next to impossible for some to habitually Drive the same as You. That being said this engine cannot be equal to the new Technology coming, In HEAD EGR (No external EGR..2020+ have two external EGRs) NO DPF, NO VGT Turbo. DSL's of the future Need.... Better reliability, MPG, Emissions, and less cost to survive its that simple. Fiat already have this Technology at FPT. (Fiat Power Technology)
No matter How VM markets this engine (3.0) its 15 Years old, belongs in 3200LBS cars, that's the Original design and Intent Both GM/VM Versioned in 2004-6 and the reason its somewhat successful in EURO.
BoostN This site and the entire Ecodiesel Future rest in the hands of Fiat/Stellantis
30 minutes of HWY VS how many minutes Stop and go City, IMO for every 1.25-1.5hrs of city driving You Need 8/10 miles of HWY speeds to Active regen the city miles.