Chapter 14, Problem 1RQ

What is the formula for determining fuel economy?

To determine

Write the procedure to determine the fuel economy.

Explanation of Solution

The fuel economy is generally found in miles per gallon in Country U. Other than Country U, the fuel economy is calculated in the number of fuel liters required to travel 100 kilometers.

Two important factors that should be known to determine the fuel economy in miles per gallons are as follows:

• The distance traveled by the vehicle in miles.
• The number of gallons of fuel required.

While determining the fuel economy, the fuel tank is needed to be filled twice, first, at the start of the test and second, at the finish of the test distance traveled.

The expression to calculate the fuel economy in miles per gallons is as follows:

  $\text{Fuel economy}\left(\text{MPG}\right)=\frac{\text{Miles traveled}}{\text{number of gallons used}}$