A 2 L bottle of liquid contains approximately 0.53 gallons which measurement is closest to the number of liters in 8 gallons

There are approximately 3.785 liters in 1 gallon.

So, 8 gallons is approximately 8 x 3.785 = 30.28 liters.

Therefore, the closest measurement to the number of liters in 8 gallons is 30 liters.