Fuel and Refueling
Note: Use of any fuel other than those
FUEL QUALITY - E85(If Equipped)
recommended can impair the emission
control system and cause a loss of vehicle
performance.
ChoosingtheRightFuel-FlexFuel
Vehicles
Do not use:
Flex fuel vehicles have one of the following
identifiers:
•
•
•
Diesel fuel.
Fuels containing kerosene or paraffin.
•
•
•
•
Yellow fuel filler cap.
Fuels containing more than 85%
ethanol or E100 fuel.
Yellow bezel around the fuel filler inlet.
Yellow fuel filler housing.
•
•
Fuels containing methanol.
Yellow E85 label on the fuel tank filler
door.
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.
E161513
Your vehicle is designed to operate on
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).
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.
Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. We do not recommend
these fuels.
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 as well
as other conditions, for example when
towing a trailer. See Towing (page 183).
Do not use any fuel other than those
recommended because they could lead to
engine damage that will not be covered by
the vehicle Warranty.
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2017 Focus (CDH) Canada/United States of America, HM5J 19A321 AA enUSA, Edition date: 201608, Second Printing
English 