Volvo S90 2019 Owner's Manual page 418

STARTING AND DRIVING
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meet seasonal air quality standards, some
areas require the use of "oxygenated" fuel.
Volvo permits the use of the following "oxy-
genated" fuels. However, the specified octane
ratings 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 "Gasohol".
Ethers - MTBE/ETBE: Fuels containing up to
22% MTBE/ETBE by volume may be used.
Methanol
Do 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.
Related information
Octane rating (p. 416)
•
Opening/closing the fuel filler door
•
(p. 414)
Refueling (p. 414)
•
Emission controls (p. 418)
•
15 AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2
16 For supplementary information - see the car's Service and Warranty Booklet.
416
Octane rating
Volvo requires premium fuel (91 octane
higher) for all T5, T6 and T8 engines, and rec-
ommends AKI 93 for optimal performance
and fuel economy. See decal examples in
illustrations 1 and 2.
Minimum octane
Decals
Illustration 1: Sample fuel pump octane label
15 or
Illustration 2: Decal on the inside of the fuel filler flap
on vehicles that require premium fuel
TOP TIER Detergent Gasoline
Volvo endorses the use of "TOP TIER Deter-
gent Gasoline" where available to help main-
tain engine performance and reliability. TOP
TIER Detergent Gasoline meets a new stand-
ard jointly established by leading automotive
manufactures to meet the needs of today's
advanced engines. Qualifying gasoline retail-
ers (stations) will, in most cases, identify their
gasoline as having met the "TOP TIER Deter-
15
. gent Gasoline" standards.
NOTE
Information about TOP TIER Detergent
Gasoline is available at
www.toptiergas.com.
16
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