User Manual - Page 159

For 2020 Fusion Hybrid .

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Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. The use of these fuels
could result in engine damage that will not
be covered by the vehicle warranty.
For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather.
Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact
an authorized dealer to prevent any engine
damage.
We recommend Top Tier detergent
gasolines where available to help minimize
engine deposits and maintain optimal
vehicle and engine performance. For
additional information, refer to
www.toptiergas.com.
Note: Use of any fuel for which the vehicle
was not designed can impair the emission
control system, cause loss of vehicle
performance, and cause damage to the
engine which may not be covered by the
vehicle Warranty.
Do not use:
Diesel fuel.
Fuels containing kerosene or paraffin.
Fuel containing more than 15% ethanol
or E85 fuel.
Fuels containing methanol.
Fuels containing metallic-based
additives, including manganese-based
compounds.
Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
Leaded fuel; using leaded fuel is
prohibited by law.
The use of fuels with metallic compounds
such as methylcyclopentadienyl
manganese tricarbonyl (commonly known
as MMT), which is a manganese-based
fuel additive, will impair engine
performance and affect the emission
control system.
Fuel Freshness Mode (If Equipped)
This helps keep the fuel system functional
and the fuel fresh.
If you mainly use your vehicle in electric
power mode without refueling, the gasoline
in the fuel tank may become stale due to
aging. Stale gasoline can damage the
engine and fuel system.
Your vehicle automatically switches to fuel
freshness mode if you do not refuel your
vehicle with fresh fuel within an 18-month
period. Fuel freshness mode protects your
vehicle from potential engine and fuel
system damage caused by using stale fuel.
Note: If you do not add new fuel during an
18-month period, fuel freshness mode will
use fuel until approximately 1.2 gal (4.5 L)
of fuel remains in the fuel tank.
During fuel freshness mode:
The information display will indicate
fuel freshness mode is active.
EV Now mode will not be available.
Most of the electric-only driving range
will be saved until fuel freshness mode
is completed.
Note: EV Now mode will become available
when less than 1.2 gal (4.5 L) of fuel remains
in the fuel tank.
Note: When the fuel level is less than
one-quarter full, refueling your vehicle will
end fuel freshness mode.
Note: We recommend you use a fuel
stabilizer if you use less than a full tank of
fuel during an 18-month period.
156
Fusion Energi (CC7) Hybrid Electric Vehicle (HEV)/Plug-In Hybrid Electric Vehicle (PHEV), Canada/United States of America, enUSA, Edition date: 201905, Draft
Fuel and Refueling
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