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2007 Volvo XC90
Fuel requirements
Octane rating
Volvo engines are designed for optimum performance on unleaded premium g\
asoline with an AKI octane rating of 91 or
above. AKI (ANTI KNOCK INDEX) is an average of the Research Octane Num\
ber, RON, and the Motor Octane Number,
MON. ((RON + MON)/2). The minimum octane requirement is AKI 87 (RON\
91).
Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline to control engine deposit\
s. Detergent gasoline is effective in keeping
injectors and intake valves clean. Consistent use of deposit control gas\
olines will help ensure good drivability and fuel
economy. If you are not sure whether the gasoline contains deposit contr\
ol additives, check with the service station
operator.
NOTE: Volvo does not recommend the use of external fuel injector cleaning sys\
tems.
Unleaded fuel
Each Volvo has a three-way catalytic converter and must use only unleade\
d gasoline. U.S. and Canadian regulations
require that pumps delivering unleaded gasoline be labelled "UNLEADED". \
Only these pumps have nozzles which fit
your vehicle's filler inlet. It is unlawful to dispense 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 effectiveness of the emission control system and could r\
esult in loss of emission warranty coverage. State
and local vehicle inspection programs will make detection of misfueling \
easier, possibly resulting in emission test failure
for misfueled vehicles.
NOTE: Some U.S. and Canadian gasolines contain an octane enhancing additive c\
alled methyl-cyclopentadienyl
manganese tricarbonyl (MMT). If such fuels are used, your Emission Con\
trol System performance may be affected, and
the Check Engine Light (malfunction indicator lamp) located on your in\
strument panel may light. If this occurs, please
return your vehicle to an authorized Volvo retailer for maintenance.
Gasoline containing alcohol and ethers "Oxygenated fuels"
Some fuel suppliers sell gasoline containing "oxygenates" which are usua\
lly alcohols or ethers. In some areas, state or
local laws require that the service pump be marked indicating use of alc\
ohols 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 seasonal air quality standards, some a\
reas require the use of "oxygenated" fuel.
Volvo allows the use of the following "oxygenated" fuels; however, the o\
ctane ratings listed on this page must still be met.
Alcohol - Ethanol: Fuels containing up to 10% ethanol by volume may be u\
sed. Ethanol may also be referred to as Ethyl
alcohol, or "Gasohol".
Ethers - MTBE: Fuels containing up to 15% MTBE may be used.
pg. 115 Starting and driving
Fuel requirements
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Page 127 of 268

2007 Volvo XC90
Octane rating
Volvo engines are designed to achieve rated horsepower, torque, and fuel\
economy performance using premium 91 octane
fuel. Volvo recommends premium for best performance, but using 87 octane\
or above will not affect engine reliability.
In demanding driving conditions, such as operating the vehicle in hot we\
ather, towing a trailer, or driving for extended
periods at higher altitudes than normal, it may be advisable to switch t\
o higher octane fuel (91 or higher) or to change
gasoline brands to fully utilize your engine's capacity, and for the smo\
othest possible operation.
NOTE: When switching to higher octane fuel or changing gasoline brands, it ma\
y be necessary to fill the tank more than
once before a difference in engine operation is noticeable.
Fuel Formulations
Do not use gasoline that contains lead as a knock inhibitor, and do not \
use lead additives. Besides damaging the exhaust
emission control 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 stron\
gly 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:
l standing upwind away from the filler nozzle while refueling
l refueling only at gas stations with vapor recovery systems that fully se\
al the mouth of the filler neck during refueling
l wearing neoprene gloves while handling a fuel filler nozzle.
Use of Additives
With the exception of gas line antifreeze during winter months, do not a\
dd solvents, thickeners, or other store-bought
additives to your vehicle's fuel, cooling, or lubricating systems. Overu\
se may damage your engine, and some of these
additives contain organically volatile chemicals. Do not needlessly expo\
se yourself to these chemicals.
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2007 Volvo XC90
Engine oil
Oil specifications
Engine oil must meet the minimum ILSAC specification GF-3, API SL, and A\
CEA A1/ B1. Lower
quality oils may not offer the same fuel economy, engine performance, or\
engine protection.
Volvo recommends
.
Depending on your driving habits, premium or synthetic oils may provide \
superior fuel economy and
engine protection. Consult your Volvo retailer for recommendations on pr\
emium or synthetic oils.
Oil additives must not be used.
NOTE: Synthetic oil is not used when the oil is changed at the normal mainten\
ance services. This oil is
only used at customer request, at additional charge. Please consult your\
Volvo retailer.
Oil viscosity (stable ambient temperatures)
Operation in hot climates
When temperatures exceed 86° F (30° C) in your area, Volvo recom\
mends, for the protection of your
engine, that you use a heavier weight oil, such as such as SAE 5W-40 or \
0W-40. See the viscosity chart.
Operation in temperate climates
Incorrect viscosity oil can shorten engine life. Under normal use when t\
emperatures do not exceed 86° F
(30° C), SAE 5W-30 will provide good fuel economy and engine protec\
tion. See the viscosity chart.
Extreme engine operation
Synthetic oils meeting SAE 0W-30 or 0W-40 and complying with oil quality\
requirements are
recommended for driving in areas of sustained temperature extremes (hot\
or cold), when towing a trailer
over long distances, and for prolonged driving in mountainous areas.
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