Fuel Quality - E85 - Ford F-150 2018 Owner's Manual

Use Motorcraft® cetane booster or an
equivalent cetane booster additive if you
suspect fuel has low cetane. Use
Motorcraft® anti-gel & performance
improver or an equivalent additive if there
is fuel gelling.
Do not use alcohol-based additives to
improve cetane quality, to prevent fuel
gelling or any other use. The use of alcohol
additives may result in damage to the fuel
injectors and system. See Capacities and
Specifications (page 425).
Your warranty may not cover repairs
needed to correct the effects of using an
aftermarket product that does not meet
Ford specifications in your fuel.

FUEL QUALITY - E85

Choosing the Right Fuel - Flex Fuel
Vehicles
Flex fuel vehicles have one of the following
identifiers:
• Yellow fuel filler cap.
• Yellow bezel around the fuel filler inlet.
• Yellow fuel filler housing.
• Yellow E85 label on the fuel tank filler
door.
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).
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201709, Second Printing
Fuel and Refueling
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 279).
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.
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:
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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.
185
Diesel fuel.
Fuels containing kerosene or paraffin.
Fuels containing more than 85%
ethanol or E100 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).