I find prior to a trip fuel up and start from a full tank I find the calculations are more accurate. I also use my cruise as often as I can.I live in Orlando and traveling on the highway I get about 24. 7 to as of late 25.1.. have taken trips I-75 to I-10 on cruise 65 mph to 75 mph 30. gpm I havent calculated to verify. My wifes Nissan 4 cyl gets 24-28. She never uses cruise. I also enjoy a smoother more relaxing ride. my 3.6 is pretty consistent. When I get out of her car my body feels like I have a vibrator in it not a fun ride for me.The Journey has had the power and comfort for me.Sorry to see the product line going away.