On March 9th, it's well known that there's a certain discrepancy between the calibrated and actual capacity of car fuel tanks. Generally, there's some margin left to account for this, allowing drivers to continue driving even when the fuel gauge shows empty.
So, how much is this margin usually? Recently, automotive blogger MC Jingjing conducted a real test using a brand-new fuel tank from a Hyundai Elantra. Calibrated at 47 liters, she filled it with tap water until it overflowed. After testing, it was found that pouring in 55 liters of fuel wouldn't be an issue, and it might even hold more.
The test seems simple and straightforward, but the comments section exploded with arguments, mainly about whether water can be used to measure the capacity of the fuel tank.
One netizen asked: Is one liter of oil equal to one liter of water? Others chimed in, saying since gasoline has a density of 0.74 and water has a density of 1, you'll definitely get more water in there, so this test isn't accurate!
Some even resorted to personal attacks: Here comes another genius, do water, gasoline, and diesel have the same density? This girl is really smart.
Many netizens have countered the above comments, arguing that the test was about volume, not weight, so what does it have to do with using water or oil? "Isn't this just the classic question of which is heavier, a pound of cotton or a pound of iron?"
Others have expressed that the blogger isn't testing the capacity of the fuel tank, but rather the brain capacity of certain netizens. "Now we know the IQ level of those who argue with you every day, right?"
