Originally Posted by minik2

Has anybody done actual calculation using the mileage driven divided by how many gallons you fill up....this would be the most accurate way even though you may top it off differently a little everytime....an average of a couple fill ups should be a good indicator....i dont have this car but i was riding backseat in someones VW and was watching the mpg gauge the whole time and it had a range of 15-50 mpg and i was like WTF definitely dont trust the computer to get actual numbers...it may be a good ball park figure over a large average though?