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Why does the last quarter of a tank of gas seem to burn off...

<< Back to: Gasoline FAQ - Part 4 of 4

Question by gomer
Submitted on 12/22/2003
Related FAQ: Gasoline FAQ - Part 4 of 4
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Why does the last quarter of a tank of gas seem to burn off more quickly than the rest of the tank?

Answer by p
Submitted on 2/19/2004
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How is gasoline made


Answer by Wilmer
Submitted on 3/20/2004
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Either because the shape of the tank is not uniform all the way from top to bottom, or because the ratio of the distance travelled by the float is not identical from top to bottom.


Answer by JGMagoo
Submitted on 1/19/2005
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The above answer is correct but needs to be clarified in that the "float" is the device inside the tank that activates the fuel gage on your dashboard and makes the needle move in relation to the level of the fuel in the tank. This gage movement is not always in direct proportion to the actual level of the fuel. Most automotive fuel gages are quite cheaply made and are only designed to give an INDICATION of the remaining fuel. The fuel gages in aircraft tend to be much more expensive and accurate for obvious reasons.


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