Emission Control System; Calculating Fuel Economy - Ford 2015 F-150 Owner's Manual

Calculating Fuel Economy

Do not measure fuel economy during the
first 1,000 mi (1,600 km) of driving (this is
your engine's break-in period). A more
accurate measurement is obtained after
2,000 mi (3,200 km) to 3,000 mi
(4,800 km). 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 fuel tank, record
the amount of fuel added.
3. After at least three fill ups, fill the fuel
tank and record the current odometer
reading.
4. Subtract your initial odometer reading
from the current odometer reading.
To calculate L/100 km (liters per 100
kilometers) fuel consumption, multiply the
liters used by 100, then divide by kilometers
traveled. To calculate MPG (miles per
gallon) fuel consumption, divide miles
traveled by gallons used.
Keep a record for at least one month and
record the type of driving (city or highway).
This provides an accurate estimate of your
vehicle's fuel economy under current
driving conditions. Keeping records during
summer and winter will show how
temperature impacts fuel economy.
Conditions
• Heavily loading your vehicle reduces
fuel economy.
• Carrying unnecessary weight in your
vehicle may reduce fuel economy.
• Adding certain accessories to your
vehicle such as bug deflectors, rollbars
or light bars, running boards and ski
racks may reduce fuel economy.
• Using fuel blended with alcohol may
lower fuel economy.
F-150 (TFC) Canada/United States of America, enUSA, Fourth Printing
Fuel and Refueling
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EMISSION CONTROL SYSTEM

engine compartment and exhaust system,
which can start a fire.
you smell exhaust fumes inside your
vehicle, have your dealer inspect your
vehicle immediately. Do not drive if you
smell exhaust fumes.
Your vehicle is equipped with various
emission control components and a
catalytic converter that will enable your
vehicle to comply with applicable exhaust
emission standards. To make sure that the
catalytic converter and other emission
control components continue to work
properly:
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The scheduled maintenance items listed
in scheduled maintenance information are
essential to the life and performance of
your vehicle and to its emissions system.
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Fuel economy may decrease with lower
temperatures.
Fuel economy may decrease when
driving short distances.
You will get better fuel economy when
driving on flat terrain than when driving
on hilly terrain.
WARNINGS
Do not park, idle, or drive your vehicle
in dry grass or other dry ground cover.
The emission system heats up the
Exhaust leaks may result in entry of
harmful and potentially lethal fumes
into the passenger compartment. If
Use only the specified fuel listed.
Avoid running out of fuel.
Do not turn off the ignition while your
vehicle is moving, especially at high
speeds.
Have the items listed in scheduled
maintenance information performed
according to the specified schedule.