Empty reserve is the amount of fuel
remaining in the tank after the fuel gauge
indicates empty. Do not rely on this fuel
for driving. The usable capacity of the fuel
tank is the amount of fuel that can be put
into the tank after the gauge indicates
empty. The advertised capacity is the total
fuel tank size – it is the combined usable
capacity plus the empty reserve.
Filling 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 by dividing
miles traveled by gallons used (For
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.
EMISSION CONTROL SYSTEM
WARNINGS
Do not park, idle, or drive your
vehicle in dry grass or other dry
ground cover. The emission system heats
up the engine compartment and exhaust
system, which can start a fire.
Exhaust leaks may result in entry of
harmful and potentially lethal fumes
into the passenger compartment. If you
smell exhaust fumes inside your vehicle,
have your dealer inspect your vehicle
immediately. Do not drive if you smell
exhaust fumes.
150
MKZ (CC9) , enUSA
Fuel and Refueling
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