acdii, I've had my 13' FFH for almost two months and have now put almost 2,500 miles on it and averaging 41.5mpg. I drive exactly like I always have and haven't made any adjustments. My DD before this was a 5 speed Mustang GT and I drove it how a Mustang was meant to be driven.. agressive... Now I live in Phoenix and the vast majority of my driving is city stop and go driving, so naturally the EV mode is on a ton on my FFH.