Ford E-350 (2018 year). Manual — part 19

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).

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 102).

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:
•

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).

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.

Switching Between E85 and
Gasoline

We do not recommend repeatedly
alternating between E85 and gasoline. If
you switch from using E85 to gasoline, or
from gasoline to E85, add as much fuel as
possible, at least half a tank. Drive your
vehicle immediately for a minimum of 5 mi
(8 km) to allow it to adapt to the change
in ethanol concentration. If you use E85
exclusively, we recommend that you fill
the fuel tank with regular unleaded
gasoline at each scheduled oil change.

FUEL QUALITY - GASOLINE

Choosing the Right Fuel

E161513

Your vehicle is designed to operate on
regular unleaded gasoline with a minimum
pump (R+M)/2 octane rating of 87.

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 102).

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:
•

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.

RUNNING OUT OF FUEL

Avoid running out of fuel. Running out of
fuel can cause damage not covered by the
vehicle Warranty.

If your vehicle runs out of fuel:
•

Normally, adding 1.3 gal (5 L) of fuel is
enough to restart the engine. If your
vehicle is on a steep grade, more fuel
may be required.

•

You may need to cycle the ignition from
off to on several times after refueling
to allow the fuel system to pump the
fuel from the tank to the engine. On
restarting, cranking time will take a few
seconds longer than normal.

Filling a Portable Fuel Container

WARNING

Flow of fuel through a fuel pump
nozzle can produce static electricity.
This can cause a fire if you are filling

an ungrounded fuel container.

Use the following guidelines to avoid
electrostatic charge build-up, which can
produce a spark, when filling an
ungrounded fuel container:
•

Only use an approved fuel container to
transfer fuel to your vehicle. Place the
container on the ground when filling.

•

Do not fill a fuel container while it is
inside your vehicle (including the cargo
area).

•

Keep the fuel pump nozzle in contact
with the fuel container while filling.

•

Do not use a device that holds the fuel
pump nozzle lever in the fill position.

REFUELING

WARNINGS

Fuel vapor burns violently and a fuel
fire can cause severe injuries.

Read and follow all the instructions
on the pump island.

Turn off your engine when you are
refueling.

Do not smoke if you are near fuel or
refueling your vehicle.

Keep sparks, flames and smoking
materials away from fuel.

Stay outside your vehicle and do not
leave the fuel pump unattended
when refueling your vehicle. This is

against the law in some places.

WARNINGS

Keep children away from the fuel
pump; never let children pump fuel.

Do not use personal electronic
devices while refueling.

Wait at least 10 seconds before
removing the fuel pump nozzle to
allow any residual fuel to drain into

the fuel tank.

Stop refueling after the fuel pump
nozzle automatically shuts off for the
second time. Failure to follow this

will fill the expansion space in the fuel tank
and could lead to fuel overflowing.

Do not remove the fuel pump nozzle
from its fully inserted position when
refueling.

Use the following guidelines to avoid
electrostatic charge build-up when filling
an ungrounded fuel container:
•

Place approved fuel container on the
ground.

•

Do not fill a fuel container while it is in
the vehicle (including the cargo area).

•

Keep the fuel pump nozzle in contact
with the fuel container while filling.

•

Do not use a device that would hold
the fuel pump handle in the fill position.

Fuel Filler Cap

WARNINGS

The fuel system may be under
pressure. If you hear a hissing sound
near the fuel filler door, do not refuel

until the sound stops. Otherwise, fuel may
spray out, which could cause serious
personal injury.

WARNINGS

If you do not use the proper fuel filler
cap, excessive pressure or vacuum
in the fuel tank may damage the fuel

system or cause the fuel cap to disengage
in a collision, which may result in possible
personal injury.

Note: If you must replace the fuel filler cap,
replace it with a fuel filler cap that is
designed for your vehicle. The customer
warranty may be void for any damage to the
fuel tank or fuel system if the correct
genuine Ford, Motorcraft or other certified
fuel filler cap is not used.

Your fuel tank filler cap has an indexed
design with a 1/4th turn on and off feature.
When fueling your vehicle:

1.

Put your vehicle in park (P).

2. Switch the engine off.

3. Carefully turn the filler cap

counterclockwise until it spins off.

4. Pull to remove the cap from the fuel

filler pipe.

5. To install the cap, align the tabs on the

cap with the notches on the filler pipe.

6. Turn the filler cap clockwise 1/4 of a

turn clockwise until it clicks at least
once.

If the Check Fuel Cap light or a Check Fuel
Cap message appears in the instrument
cluster and stays on after you start the
engine, you may not have installed the fuel
filler properly.

If the fuel cap light remains on, at the next
opportunity, safely pull off of the road,
remove the fuel filler cap, align the cap
properly and reinstall it. The check fuel cap
light or Check fuel cap message may not
reset immediately. It may take several
driving cycles for the indicators to turn off.
A driving cycle consists of an engine
start-up (after four or more hours with the
engine off) followed by normal city and
highway driving.

FUEL CONSUMPTION

The advertised capacity is the maximum
amount of fuel that you can add to the fuel
tank after running out of fuel. Included in
the advertised capacity is an empty
reserve. The empty reserve is an
unspecified amount of fuel that remains
in the fuel tank when the fuel gauge
indicates empty.

Note: The amount of fuel in the empty
reserve varies and should not be relied upon
to increase driving range.

Fuel Economy

Your vehicle calculates fuel economy
figures through the trip computer average
fuel function. See General Information
(page 56).

The first 1,000 mi (1,500 km) of driving is
the break-in period of the engine. A more
accurate measurement is obtained after
2,000 mi (3,000 km).

Impacting Fuel Economy

•

Incorrect tire inflation pressures. See
Technical Specifications (page 194).

•

Fully loading your vehicle.

•

Carrying unnecessary weight.