AS TITLE SAYS I GOT 55.2MPG ON THIRD FILL-UP 469.4 MILES ON 8.5 GALLONS I COULD OF WENT OVER 500 MILES ON ONE TANK BUT I DIDNT WANT TO CHANCE IT.I KEEP IT IN ECO MODE I FIND IT EASIER TO KEEP IT E.V. THAT WAY. FOR YOU DRIVERS THAT ARE STRUGGLING WITH MILEAGE MY ADVICE IS GET YOUR FOOT OFF THE GAS OR CAR WILL NOT GO IN E.V. AS MUCH AS IT COULD. THANKS BLUEDUCE