Weight of Water Compared to Weight of Gasoline
At 60 degrees Fahrenheit, a gallon of pure water weighs 8.34 pounds, whereas a gallon of vehicular gasoline weighs about 6.15 pounds at that temperature.
Diesel weights about 7.1 pounds per gallon.
But actually the question is not about weight, but about density, that is weight per volume.
The SI-Unit of density is kilogram per cubic metre, expressed as such, the densities are these:
Water: 1000 kg/m3
Gasoline: 740 kg/m3
Diesel: 830 kg/m3
You see this when gasoline and water are put into a glass: because the mix badly and the density of gasoline is lower, it will stay at the top. (Be careful when doing this, gasoline vapor is explosive and toxic!)
As stated above, these values are temperature dependent, that is the reason why for example warm water in the sea rises (its density is lower than the density of cold water) and causes the currents wihch are so important for our lives.
First answer by Kenn Ramsay. Last edit by Oderbolz. Contributor trust: 5 [recommend contributor]. Question popularity: 273 [recommend question]




