Quote:
Originally Posted by bar10dah
How do you know you used two gallons? Just by the fuel gauge? The fuel gauge is a best guess. Although, if you noticed the needle moved that much (about 2X) when it usually doesn't, could be something there.
Keep driving it until 1/2 to 1/4 tank, then refill and calculate the fuel consumption by hand?
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Everytime I fill up the tank, I reset the mileage counter so I know how many miles I drive on a tank of gas.
It looked like the needle on the gas gauge was going down much faster than usual. So I went back to the gas station the next day and refilled it to see how much gas I really used in that 18 miles. It filled up with 2 gallons of fuel.