2011 VOLVO S40 octane

06 Starting and driving
Fuel requirements
06
144
Octane rating
Minimum octane
G028920
Typical pump octane label
Volvo recommends premium fuel for best per-
formance, but using 87 octane1 or above will
not affect engine reliability.
Volvo engines are designed to achieve rated
horsepower, torque, and fuel economy per-
formance using premium 91 octane fuel.
Demanding drivingIn demanding driving conditions, such as oper-
ating the vehicle in hot weather, towing a trailer,
or driving for extended periods at higher alti-
tudes than normal, it may be advisable to
switch to higher octane fuel (91 or higher) or tochange gasoline brands to fully utilize your
engine's capacity, and for the smoothest pos-
sible operation.
NOTE
When switching to higher octane fuel or
changing gasoline brands, it may be neces-
sary to fill the tank more than once before a
difference in engine operation is noticeable.
Fuel FormulationsDo not use gasoline that contains lead as a
knock inhibitor, and do not use lead additives.
Besides damaging the exhaust emission con-
trol systems on your vehicle, lead has been
strongly linked to certain forms of cancer.
Many fuels contain benzene as a solvent.
Unburned benzene has been strongly linked to
certain forms of cancer. If you live in an area
where you must fill your own gas tank, take
precautions. These may include:
•standing upwind away from the filler nozzle
while refueling
•refueling only at gas stations with vapor
recovery systems that fully seal the mouth
of the filler neck during refueling
•wearing neoprene gloves while handling a
fuel filler nozzle.
Use of AdditivesWith the exception of gas line antifreeze during
winter months, do not add solvents, thicken-
ers, or other store-bought additives to your
vehicle's fuel, cooling, or lubricating systems.
Overuse may damage your engine, and some
of these additives contain organically volatile
chemicals. Do not needlessly expose yourself
to these chemicals.
WARNING
Never carry a cell phone that is switched
on while refueling your vehicle. If the phone
rings, this may cause a spark that could
ignite gasoline fumes, resulting in fire and
injury.
WARNING
Carbon monoxide is a poisonous, colorless,
and odorless gas. It is present in all exhaust
gases. If you ever smell exhaust fumes
inside the vehicle, make sure the passenger
compartment is ventilated, and immediately
return the vehicle to a trained and qualified
Volvo service technician for correction.
1AKI (ANTI KNOCK INDEX) is an average of the Research Octane Number (RON) and the Motor Octane Number (MON), MON+RON/2.

06 Starting and driving
Fuel requirements
06

145 Deposit control gasoline (detergent
additives)
Volvo recommends the use of detergent gas-
oline to control engine deposits. Detergent
gasoline is effective in keeping injectors and
intake valves clean. Consistent use of deposit
control gasolines will help ensure good driva-
bility and fuel economy. If you are not sure
whether the gasoline contains deposit control
additives, check with the service station oper-
ator.
NOTE
Volvo does not recommend the use of
store-bought fuel injector cleaning addi-
tives.
Unleaded fuel
Each Volvo has a three-way catalytic converter
and must use only unleaded gasoline. U.S. and
Canadian regulations require that pumps deliv-
ering unleaded gasoline be labelled "UNLEA-
DED". Only these pumps have nozzles which
fit your vehicle's filler inlet. It is unlawful to dis-
pense leaded fuel into a vehicle labelled
"unleaded gasoline only". Leaded gasoline
damages the three-way catalytic converter and
the heated oxygen sensor system. Repeated
use of leaded gasoline will lessen the effective-ness of the emission control system and could
result in loss of emission warranty coverage.
State and local vehicle inspection programs
will make detection of misfueling easier, pos-
sibly resulting in emission test failure for mis-
fueled vehicles.
NOTE
Some U.S. and Canadian gasolines contain
an octane enhancing additive called methyl-
cyclopentadienyl manganese tricarbonyl
(MMT). If such fuels are used, your Emission
Control System performance may be affec-
ted, and the Check Engine Light (malfunc-
tion indicator lamp) located on your instru-
ment panel may light. If this occurs, please
return your vehicle to a trained and qualified
Volvo service technician for maintenance.
Gasoline containing alcohol and ethers
Some fuel suppliers sell gasoline containing
"oxygenates" which are usually alcohols or
ethers. In some areas, state or local laws
require that the service pump be marked indi-
cating use of alcohols or ethers. However,
there are areas in which the pumps are
unmarked. If you are not sure whether there is
alcohol or ethers in the gasoline you buy, check
with the service station operator. To meet sea-
sonal air quality standards, some areas require
the use of "oxygenated" fuel. Volvo allows theuse of the following "oxygenated" fuels; how-
ever, the octane ratings listed on this page
must still be met.
Alcohol – Ethanol: Fuels containing up to 10%
ethanol by volume may be used. Ethanol may
also be referred to as Ethyl alcohol, or "Gaso-
hol".
Ethers – MTBE: Fuels containing up to 15%
MTBE may be used.
MethanolDo not use gasolines containing methanol
(methyl alcohol, wood alcohol). This practice
can result in vehicle performance deterioration
and can damage critical parts in the fuel sys-
tem. Such damage may not be covered under
the New Vehicle Limited Warranty.
Fuel filler door
Press the button on the light switch panel (see
the illustration on page 66) with the ignition
switched off to unlock the fuel filler door.
Please note that the fuel filler door will remain
unlocked until the vehicle begins to move for-
ward. An audible click will be heard when the
fuel filler door relocks.
If you intend to leave your vehicle while it is
being refueled, this feature enables you to lock
the doors/trunk while leaving the fuel filler door
unlocked.

11 Specifications
Fuel, oils, and fluids
11

273 Specifications and capacities
CategorySpecificationCapacity
Fuel tankOctane rating: unleaded gasoline, minimum
octane requirement AKI 87, recommended rat-
ing AKI 91 or above.15.9 US gallons (60 liters)
Engine oil (with filter replacement)See page 274 for information on engine oil
specifications.6.1 US quarts (5.8 liters)
Automatic transmission oilJWS 33098.14 US quarts (7.7 liters)
CoolantVolvo original coolant/antifreeze (50/50 mix-
ture of water and anti-freeze)10.5 US quarts (10 liters) – models with automatic
transmission
Brake fluidDOT 4+ boiling point >536 °F (280 °C), P/N
94374330.63 US quarts (0.6 liters)
Power steering fluidWSS M2C204-A or equivalent1.3 US quarts (1.2 liters) – system and reservoir com-
bined
Washer fluid reservoirUse washer fluid solvent in cold weather con-
ditions.4.2 US qts (4 liters)
Air conditioning systemRefrigerant – R134a1.2 lbs. (530 grams)

12 Index
12
288
Locks, child safety................................... 133
Long distance trips.................................. 142
Lug nuts (wheel nuts)............................... 191
M
Maintenance............................................ 214
hoisting the vehicle............................. 215
performed by the owner.....................215
Manual climate control.............................. 97
Mirrors....................................................... 80
Model plate.............................................. 269
Moonroof................................................... 83
Motor oil........................................... 219, 274
checking............................................. 219
O
Occupant safety........................................ 18
Occupant weight sensor............................ 28
Octane recommendations.......................144Oil............................................................. 219
changing............................................. 219
checking............................................. 219
On Call Roadside Assistance.................. 282
Opening the hood.................................... 217
Opening the trunk from the inside........... 131
Owner maintenance................................. 215
P
Panel lighting, instrument.......................... 67
Park assist............................................... 171
Parking brake........................................... 157
Parking lights............................................. 66
Passenger’s side front airbag, disabling. . . 28
Periodic owner-performed maintenance. 215
Permissible axle weight........................... 186
Personal settings....................................... 85
Power door mirrors.................................... 81
Power front seat...................................... 106
memory function................................. 107
Power moonroof........................................ 83
Power steering fluid................................. 222Power windows......................................... 78
Pregnancy, using seat belts during........... 21
Private locking......................................... 126
R
Radio
Sirius satellite radio............................252
Radio functions........................................ 248
HD digital radio................................... 250
Rain sensor - windshield wipers................ 76
Rear fog light............................................. 67
Rear park assist....................................... 171
Rear seat backrests, folding down.......... 115
Rear seats
center head restraint........................... 115
Rearview mirror.......................................... 80
auto-dim function................................. 80
Rearview mirror with compass.................. 80
Recalls, child restraints.............................. 50
Refrigerant (A/C system).................... 94, 273
Refueling.................................................. 146
fuel tank volume.................................273
Registering child restraints........................ 50