Whenever the trip computer says I have 20km to empty, I figure I must have a couple of litres in my tank (80L). yet when I fill up I only put in 64L. Does anybody else find this true? i mean I hate to fill it if I have 4 gallons of fuel left, thats a lot of mileage left.<P>Right now on my way to work, the computer went from 30km to 20km to empty (three lines..."--- to empty"). The station I go to is 5 miles away, it is just unnerving when you are told you are empty if it isn't the case.<P>Any feedback or insight would be excellent.