See also:

What you should know about automotive fuels
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Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading (in miles or kilometers). 2. Each time you fill the tank, record the amount of fuel added (in gallons or liters). 3. Af ...

Reporting safety defects (U.S. only)
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NH ...