fuel reserve FORD SUPER DUTY 2013 3.G Owners Manual

FUEL CONSUMPTION
Filling the Tank
The advertised capacity is the indicated capacity and the empty reserve
combined. Indicated capacity is the difference in the amount of fuel in a
full tank and a tank when the fuel gauge indicates empty. Empty reserve
is the amount of fuel in the tank after the fuel gauge indicates empty.
Note:The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your vehicle
after the fuel gauge indicates empty, you might not be able to refuel the
full amount of the advertised capacity of the fuel tank due to the empty
reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the ignition off before fueling; an inaccurate reading results if the
engine is left running.
•Use the same fill rate (low–medium–high) each time the tank is filled.
•Allow no more than two automatic click–offs when filling.
Results are most accurate when the filling method is consistent.
Calculating Fuel Economy
Do not measure fuel economy during the first 1000 miles (1600 kilometers)
of driving (this is your engine’s break-in period); a more accurate
measurement is obtained after 2000 miles–3000 miles (3200
kilometers–4800 kilometers). Also, fuel expense, frequency of fill-ups or
fuel gauge readings are not accurate ways to measure fuel economy.
1. Fill the fuel tank completely and record the initial odometer reading.
2. Each time you fill the tank, record the amount of fuel added.
3. After at least three to five tank fill-ups, fill the fuel tank and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer reading.
5. Calculate fuel economy as follows:
Standard: Divide miles traveled by gallons used.
Metric: Multiply liters used by 100, then divide by kilometers traveled.
Keep a record for at least one month and record the type of driving (city
or highway). This provides an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter show how temperature impacts fuel economy.
In general, lower temperatures mean lower fuel economy.
Fuel and Refueling193
2013 F-250/350/450/550(f23)
Owners Guide gf, 1st Printing
USA(fus)

•Never apply any cleaning chemical to hot or warm wheel rims or
covers.
•Some automatic car washes may cause damage to the finish on your
wheel rims or covers. Industrial-strength (heavy-duty) cleaners, or
cleaning chemicals, in combination with brush agitation to remove
brake dust and dirt, could wear away the clear coat finish over time.
•Do not use hydrofluoric acid-based or high caustic-based wheel
cleaners, steel wool, fuels or strong household detergent.
•To remove tar and grease, use Motorcraft® Bug and Tar Remover.
VEHICLE STORAGE
If you plan on storing your vehicle for an extended period of time
(30 days or more), read the following maintenance recommendations to
make sure your vehicle stays in good operating condition.
All motor vehicles and their components were engineered and tested for
reliable, regular driving. Long term storage under various conditions may
lead to component degradation or failure unless specific precautions are
taken to preserve the components.
General
•Store all vehicles in a dry, ventilated place.
•Protect from sunlight, if possible.
•If vehicles are stored outside, they require regular maintenance to
protect against rust and damage.
Body
•Wash vehicle thoroughly to remove dirt, grease, oil, tar or mud from
exterior surfaces, rear-wheel housing and underside of front fenders.
•Periodically wash vehicles stored in exposed locations.
•Touch-up raw or primed metal to prevent rust.
•Cover chrome and stainless steel parts with a thick coat of auto wax
to prevent discoloration. Re-wax as necessary when the vehicle is
washed.
•Lubricate all hood, door and trunk lid hinges, and latches with a light
grade oil.
•Cover interior trim to prevent fading.
•Keep all rubber parts free from oil and solvents.
Vehicle Care335
2013 F-250/350/450/550(f23)
Owners Guide gf, 1st Printing
USA(fus)