To convert gallons to liters, we need to understand that 1 gallon is approximately equal to 3.78541 liters. To find out how many liters are needed for a 12-gallon tank, we can use the following calculation:
Calculation:
12 gallons × 3.78541 liters/gallon = 45.42492 liters
So, to fill a 12-gallon gas tank, you would need approximately 45.42 liters of gasoline.