02 Service and maintenance
11
Fuel Requirements
02
intake valves clean. Consistent use of depos-
it control gasolines will help ensure good
drivability and fuel economy. If you are not
sure whether the gasoline contains deposit
control additives, check with the service sta-
tion operator.
Unleaded fuel
Each Volvo has a three-way catalytic con-
verter and must use only unleaded gasoline.
U.S. and Canadian regulations require that
pumps delivering unleaded gasoline be la-
belled "UNLEADED". Only these pumps have
nozzles which fit your vehicle's filler inlet. It is
unlawful to dispense leaded fuel into a vehi-
cle labelled "unleaded gasoline only". Lead-
ed gasoline damages the three-way catalytic
converter and the heated oxygen sensor sys-
tem. Repeated use of leaded gasoline will
lessen the effectiveness of the emission con-
trol system and could result in loss of emis-
sion warranty coverage. State and local vehi-
cle inspection programs will make detection
of misfueling easier, possibly resulting in
emission test failure for misfueled vehicles.
Gasoline containing alcohol and
ethers (oxygenated fuels)
Some fuel suppliers sell gasoline containing
"oxygenates" which are usually alcohols or
ethers. In some areas, state or local laws re-
quire that the service pump be marked indi-
cating use of alcohols or ethers. However,
there are areas in which the pumps are un-
marked. 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
areas require the use of "oxygenated" fuel.
Methanol
Do not use gasolines containing methanol
(methyl alcohol, wood alcohol). This practice
can result in vehicle performance deteriora-
tion and can damage critical parts in the fuel
system. Such damage may not be covered
under the New Vehicle Limited Warranty.
Volvo allows the use of the following "oxy-
genated" fuels; however, the octane ratings
listed on page 10 must still be met.
Alcohol – Ethanol
Fuels containing up to 10% ethanol by vol-
ume may be used. Ethanol may also be re-
ferred to as Ethyl alcohol, or "Gasohol."
Ethers – MTBE
Fuels containing up to 15% MTBE may be
used.
NOTE
Volvo does not recommend the use of ex-
ternal fuel injector cleaning systems.
NOTE
Some U.S. and Canadian gasolines contain
an octane enhancing additive called me-
thyl-cyclopentadienyl manganese tricarbo-
nyl (MMT). If such fuels are used, your
Emission Control System performance may
be affected, and the Check Engine Light
(malfunction indicator lamp) located on your
instrument panel may light. If this occurs,
please return your vehicle to an authorized
Volvo retailer for service.
VCNA XC90 warranty manual week 1146.book Page 11 Friday, November 4, 2011 11:44 AM
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