We have had the 2015 AWD for about a week, driven about 250 miles 50/50 city/fwy and trip computer is reporting 19.4. From all reviews it is quite clear, the 19/26 rating is pretty much unachievable even in eco mode.I have a 2015. AWD. Best I get on the hiway is 22-23. That is when I fill up and go straight to the hiway. Usually I am going right around 75mph to get that. My average though with city/hiway is about 18-19 which is the majority of the time. I notice that my average speed at fill up is usually in the mid 30s. I believe Infiniti was being a bit overly optimistic with their numbers.
The ratings are not based on high speed highway driving but something like 55-60, I think. I can get 25 mpg, or better, doing that, but I'm usually in the 70-75 camp, too.
I've got to agree. I never got his city figures if a/c or heat was being used. And even highway, I most times got 27-28. Sorry but I aint buying a performance chip boosts mileage that much especially city while using HVAC in this vehicle. If it could have been done, Nissan engineers would have just programmed the vehicle that way from the beginning.As a fellow hybrid owner, let me ask what you mean by perf chip (like a reference to what you bought).
Second, the only way I know to get anywhere near the mileage you quote is to never use the climate control and to believe the car's computer.
Can you confirm how you measure mpg and your driving environment?