User Manual - Page 462

For 2019 VOLVO XC90.

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STARTING AND DRIVING
460
Octane rating
Volvo requires premium fuel (91 octane
7
or
higher) for all T5, T6 and T8 engines, and rec-
ommends AKI 93 for optimal performance and
fuel economy. See decal examples in illustra-
tions 1 and 2.
Minimum octane
Decals
Illustration 1: Sample fuel pump octane label
7
.
Illustration 2: Decal on the inside of the fuel filler flap on
vehicles that require premium fuel
8
.
TOP TIER Detergent Gasoline
Volvo endorses the use of "TOP TIER Detergent
Gasoline" where available to help maintain
engine performance and reliability. TOP TIER
Detergent Gasoline meets a new standard jointly
established by leading automotive manufactures
to meet the needs of today's advanced engines.
Qualifying gasoline retailers (stations) will, in
most cases, identify their gasoline as having met
the "TOP TIER Detergent Gasoline" standards.
NOTE
Information about TOP TIER Detergent Gaso-
line is available at www.toptiergas.com.
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 Formulations
Do not use gasoline that contains lead or manga-
nese as a knock inhibitor, and do not use lead
additives. Besides damaging the exhaust emis-
sion 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 strongly linked to
certain forms of cancer. If you live in an area
where you must fill your own gas tank, take pre-
cautions. 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.
7
AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2
8
For supplementary information - see the car's Service and Warranty Booklet.
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