The SI unit used most commonly for gasoline is the liter. The price, at a glance, may seem cheap to your average American, but there are 3.78 liters for every gallon.
volume
The liter is a unit of volume. The most basic SI unit for volume is the cubic meter; a liter, which is the same as a cubic decimeter, is the same as 1/1000 cubic meters,
Density is not a descriptive word but a property of materials. Therefore, a material can have a high or low density. Density has units of unit mass per unit volume. "Specific volume" has units of unit volume per unit mass, so it is sort of an opposite. No real antonyms for "density" in the English langauge... some sense of "insubstantial" might work.
I would use litres.
A litre is a unit of volume.
Determining the volume is the situation that describes a cubic unit.
The SI unit used most commonly for gasoline is the liter. The price, at a glance, may seem cheap to your average American, but there are 3.78 liters for every gallon.
A litre is a unit.
Density is the ratio of an object's mass to its volume.
The unit is a litre.
The metric unit for liquid volume is liters. Throughout Europe and much of the world gasoline is sold in liters. North America still uses gallons but that is not a metric or SI unit.
This unit is the meter (m) in SI.
fishes
volume
There is really no such thing as a "liquid" unit. The unit of measure is for the VOLUME of something. The best unit for measuring the volume of a human bathtub would be the "Litre".
The liter is a unit of volume. The most basic SI unit for volume is the cubic meter; a liter, which is the same as a cubic decimeter, is the same as 1/1000 cubic meters,
In the US it is sold by the US gallon, in the rest of the world by the liter. US gallon = 3.8 liters. Both are volumes.