2000 Mercury Cougar Owner Guide 1st Printing - Page 232

Maintenance and care Calculating fuel economy To accurately calculate your vehicle's fuel economy: 1. Fill the tank completely and record the initial odometer reading. 2. Each time you fill the tank, record the amount of fuel added (in litres or gallons). 3. After at least three to five fillĆups, fill the fuel tank and record the current mileage reading. 4. Use one of the following equations to calculate fuel economy. Litres used x 100 / Total kilometres traveled Total miles traveled / Total gallons used Keep a record for at least one month. This will provide an accurate estimate of the vehicle's fuel economy. 232