Every time I get a new car, within the first week, I carry a 2 gallon plastic gas container and run out of fuel on purpose just to see what the gauge indicates and how the car acts when it runs out of fuel. I also fill the tank to the limit every time I refuel and set the trip meter.....and figure my mileage on every tank so I will know where the gauge is when it runs out.....this way you should know how many miles you have left before you run out......comes in very handy when you are traveling and between exits on the interstate. I have found out that most gauges are what I call "Top Loaded". By that I mean the top half tank will give you 200 miles and the bottom half will give only 160 miles.
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