The duration that one liter of gasoline will last in a vehicle largely depends on several factors, including the vehicle's fuel efficiency, driving conditions, and the speed at which the vehicle is driven. On average, a typical passenger car with a fuel efficiency of around 25 miles per gallon (mpg) will travel approximately 4 miles on one liter of gasoline. This calculation is based on the assumption that the vehicle is driven at a consistent speed and under normal driving conditions.

The fuel efficiency of a vehicle is a critical factor in determining how far it can travel on a single liter of gasoline. Fuel efficiency is measured in miles per gallon (mpg) in the United States, and it represents the number of miles a vehicle can travel on one gallon of fuel. For instance, a car with a fuel efficiency of 25 mpg will travel 25 miles on one gallon of gasoline. To find out how far one liter will take you, you can convert the fuel efficiency to liters per 100 kilometers (l/100 km), which is the standard unit of measurement in many countries. One gallon is approximately 3.78541 liters, so a car with a fuel efficiency of 25 mpg is roughly equivalent to 8.9 l/100 km.

In terms of driving conditions, the speed at which a vehicle is driven can significantly impact fuel efficiency. Generally, driving at higher speeds requires more energy, which can lead to a decrease in fuel efficiency. For example, a car that typically gets 25 mpg might only achieve 20 mpg or less when driving at high speeds. Conversely, driving at lower speeds, such as in stop-and-go traffic, can also decrease fuel efficiency due to the constant acceleration and deceleration required.

Data from the U.S. Environmental Protection Agency (EPA) provides insight into the average fuel efficiency of vehicles in the United States. According to the EPA, the average fuel efficiency for new passenger cars and light trucks in 2020 was approximately 25.4 mpg. This figure is consistent with the example provided earlier, where a vehicle with a fuel efficiency of 25 mpg would travel about 4 miles on one liter of gasoline.

It's important to note that these calculations are based on average fuel efficiency and driving conditions. Individual results may vary depending on the specific vehicle, driving habits, and environmental factors. For example, a vehicle with a higher fuel efficiency, such as 30 mpg, would travel approximately 6 miles on one liter of gasoline, while a vehicle with a lower fuel efficiency, such as 20 mpg, would travel about 5 miles on one liter of gasoline.