On a 425 mile trip from San Francisco to Los Angeles area via HWY 5 @65 MPH, I got an indicated range of 585 AFTER having driven 100 miles. I know how the range meter fluctuates, but made the trip with 3/8 tank left. Calculations tell me if I continued, I can almost approach +/-680 miles per tank. This is with one passenger with light luggage. I literally drive like a grandma