2011 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS octane

Octane recommendations
Your vehicle is designed to use
“Regular” unleaded gasoline with a
pump (R+M)/2 octane rating of 87.
Some stations offer fuels posted as
“Regular” with an octane rating
below 87, particularly in high altitude areas. Fuels with octane levels
below 87 are not recommended.
Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your authorized dealer to
prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of “Regular” unleaded
gasoline. Premium unleaded gasoline is not recommended for vehicles
designed to use “Regular” unleaded gasoline because it may cause these
problems to become more pronounced. If the problems persist, see your
authorized dealer.
Do not add aftermarket fuel additive products to your fuel tank. It
should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. These products have not been approved for your engine and
could cause damage to the fuel system. Repairs to correct the effects of
using an aftermarket product in your fuel may not be covered by your
warranty.
Many of the world’s automakers approved the World-Wide Fuel Charter
that recommends gasoline specifications to provide improved
performance and emission control system protection for your vehicle.
Gasolines that meet the World-Wide Fuel Charter should be used when
available. Ask your fuel supplier about gasolines that meet the
World-Wide Fuel Charter.
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in theChoosing the right
fuelsection.
Running out of fuel
Avoid running out of fuel because this situation may have an adverse
effect on powertrain components.
87(R+M)/2 METHOD
Maintenance and Specifications
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•Use the same filling rate setting (low — medium — high) each time
the tank is filled.
•Allow no more than two automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in miles or kilometers).
2. Each time you fill the tank, record the amount of fuel added (in
gallons or liters).
3. After at least three to five tank fill-ups, fill the fuel tank and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer
reading.
5. Follow one of the simple calculations in order to determine fuel
economy:
Calculation 1:Divide total miles traveled by total gallons used.
Calculation 2:Multiply liters used by 100, then divide by total
kilometers traveled.
Keep a record for at least one month and record the type of driving (city
or highway). This will provide an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter will show how temperature impacts fuel
economy. In general, lower temperatures give lower fuel economy.
Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
Habits
•Smooth, moderate operation can yield up to 10% savings in fuel.
•Steady speeds without stopping will usually give the best fuel
economy.
•Idling for long periods of time (greater than one minute) may waste
fuel.
Maintenance and Specifications
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ENGINE DATA
Engine 6.8L V10 engine
Cubic inches 415
Required fuel Minimum 87 octane
Firing order 1-6-5-10-2-7-3-8-4-9
Ignition system Coil on plug
Spark plug gap 0.039-0.043 inch (1.00-1.10mm)
Compression ratio 9.2:1
IDENTIFYING YOUR VEHICLE
Certification label for incomplete vehicles
On completed derivations of incomplete vehicles, the certification label is
affixed at a location determined by a subsequent stage manufacturer of the
completed vehicle. In these cases the completed vehicle is manufactured in
two or more stages by two or more separate manufacturers.
Vehicle Identification Number
The vehicle identification number is located near the cowl to the right of
the air filter.
If you ever find it necessary to communicate with Ford Motor Company
about your vehicle, always include the VIN in your communication.
The Vehicle Identification Number (VIN) contains the following
information:
1. World manufacturer identifier
2. Brake system / Gross Vehicle
Weight Rating (GVWR) / Restraint
Devices and their location
3. Make, vehicle line, series, body
type
4. Engine type
5. Check digit
6. Model year
7. Assembly plant
8. Production sequence number
Maintenance and Specifications
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E
Electronic message center .........16
Emergencies, roadside
jump-starting ............................79
Emergency Flashers ...................64
Emission control system ..........111
Engine ........................................128
cleaning .....................................90
coolant .......................................98
fail-safe cooling .......................102
idle speed control .....................96
lubrication specifications .......125
refill capacities ........................125
service points ......................92–93
Engine oil ....................................93
checking and adding ................93
dipstick ......................................93
filter, specifications ..........95, 124
recommendations .....................95
refill capacities ........................125
specifications ..........................125
Event data recording ....................5
Exhaust fumes ............................54
F
Fail safe cooling ........................102
Fluid capacities .........................125
Fuel ............................................104
calculating fuel economy .......108
capacity ...................................125
choosing the right fuel ...........106
detergent in fuel .....................107
filling your vehicle with
fuel ...................................104, 108
filter, specifications ........104, 124
improving fuel economy ........108
octane rating ...................107, 128quality ......................................107
running out of fuel .................107
safety information relating to
automotive fuels .....................104
Fuses ............................................65
G
Gas mileage
(see Fuel economy) .................108
Gauges .........................................13
H
Hazard flashers ...........................64
Headlamps ...................................20
daytime running lights .............20
flash to pass ..............................21
high beam .................................20
turning on and off ....................20
I
Ignition .................................51, 128
Inspection/maintenance (I/M)
testing ........................................112
Instrument panel
cluster ........................................10
lighting up panel and
interior .......................................21
J
Jump-starting your vehicle ........79
K
Keys
positions of the ignition ...........51
Index
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L
Lamps
daytime running light ...............20
headlamps .................................20
headlamps, flash to pass ..........21
instrument panel, dimming .....21
Lights, warning and indicator ....10
anti-lock brakes (ABS) ............56
Loading instructions ...................47
Load limits ...................................42
Lubricant specifications ...........125
Lug nuts ......................................78
M
Message center ...........................16
english/metric button ...............18
system check button ................18
warning messages .....................18
Motorcraftparts ......................124
O
Octane rating ............................107
Oil (see Engine oil) ....................93
P
Parking brake ..............................57
Parts
(see Motorcraftparts) ...........124
Power distribution box
(see Fuses) .................................69
Power steering
fluid, checking and adding ....114
fluid, refill capacity ................125
fluid, specifications .................125R
Relays ....................................65, 72
Roadside assistance ....................63
S
Safety defects, reporting ............89
Scheduled Maintenance Guide
Normal Scheduled
Maintenance and Log .............139
Servicing your vehicle ................91
Spark plugs,
specifications .....................124, 128
Special notice ................................4
Specification chart,
lubricants ...................................125
Speed control ..............................23
Starting your vehicle ............51–53
jump starting ............................79
Steering wheel
tilting .........................................22
T
Tilt steering wheel ......................22
Tires .......................................25–26
alignment ..................................35
care ............................................31
changing ..............................73, 75
checking the pressure ..............30
inflating .....................................27
replacing ..............................33, 76
rotating ......................................36
safety practices .........................34
sidewall information .................37
snow tires and chains ..............41
spare tire ...................................73
terminology ...............................26
tire grades .................................26
treadwear ............................25, 32
Index
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