We recommend regular unleaded gasoline
with a pump (R+M)/2 octane rating of 87.
Some fuel stations offer fuels posted as
regular unleaded gasoline with an octane
rating below 87, particularly in high altitude
areas. We do not recommend fuels with
an octane rating below 87.
For vehicles with EcoBoost engines, to
provide improved performance, we
recommend premium fuel for severe duty
usage such as trailer tow.
Do not use any fuel other than those
recommended because they could lead to
engine damage that may not be covered
by the vehicle Warranty.
Note: Use of any fuel other than those
recommended can impair the emission
control system and cause a loss of vehicle
performance.
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.
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.
FUEL QUALITY - E85 (If Equipped)
Choosing the Right Fuel - Flex Fuel
Vehicles
Use regular unleaded gasoline with a
minimum pump (R+M)/2 octane rating of
87, or regular unleaded gasoline blended
with a maximum of 85% ethanol (E85).
Flex fuel vehicles have a yellow fuel filler
cap or the fuel tank filler pipe will have a
yellow housing or bezel. Some fuel stations
offer fuels posted as regular unleaded
gasoline with an octane rating below 87,
particularly in high altitude areas. Fuels
with octane levels below 87 are not
recommended.
129
Focus (CDH) Canada/United States of America, enUSA, First Printing
Fuel and Refueling
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