Measuring techniques

Your best source of information about actual fuel economy is you, the driver. You must gather information as accurately and consistently as possible. Fuel expense, frequency of fill-ups or fuel gauge readings are NOT accurate as a measure of fuel economy. We do not recommend taking fuel economy measurements during the first 1,000 miles (1,600 km) of driving (engine break-in period). You will get a more accurate measurement after 2,000 miles–3,000 miles (3,000 km–5,000 km).
See also:
Hitches
Do not use a hitch that clamps onto the vehicle’s bumper or attaches to
the axle. You must distribute the load in your trailer so that 10–15% of
the total weight of the trailer is on the tongue. ...
Emergency towing
In case of a roadside emergency with a disabled vehicle (without access
to wheel dollies, car hauling trailer, or flatbed transport vehicle) your
vehicle (regardless of transmission powertrain con ...
When You Believe Your System Is Not Operating Properly
The main function of the tire pressure monitoring system is to warn you
when your tires need air. It can also warn you in the event the system is no
longer capable of functioning as intended. Plea ...
