Volvo XC90 TWIN ENGINE Owner's Manual page 480

STARTING AND DRIVING
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IMPORTANT
•
Fuel that contains up to 10 percent by
volume ethanol is permitted.
•
EN 228 E10 petrol (max 10 percent by
volume ethanol) is approved for use.
•
Ethanol higher than E10
(max. 10 percent by volume ethanol) is
not permitted, e.g. E85 is not permitted.
Octane rating
•
95 RON can be used for normal driving.
•
98 RON is recommended for optimum per-
formance and minimum fuel consumption.
•
An octane rating lower than RON 95 must
not be used.
When driving in temperatures above +38 °C (100
°F), fuel with the highest octane rating is recom-
mended for optimum performance and fuel econ-
omy.
IMPORTANT
•
Use only unleaded petrol to avoid damag-
ing the catalytic converter.
•
Fuel containing metallic additives must
not be used.
•
Do not use any additives which have not
been recommended by Volvo.
478
Related information
•
Handling of fuel (p. 477)
•
Filling fuel (p. 475)
•
Petrol particle filter (p. 478)
•
Fuel consumption and CO2 emissions
(p. 664)
Petrol particle filter
Petrol cars are fitted with particle filters for more
efficient emission control.
Particles in the exhaust gases are collected in
the petrol particle filter during normal driving. In
normal driving conditions, passive regeneration
takes place, which leads to the particles being
oxidised and burned away. The filter is emptied in
this way.
If the car is driven at low speed or with repeated
cold starts in low outside temperature, active
regeneration may be necessary. Regeneration of
the particulate filter is automatic and normally
takes 10-20 minutes. There may be a smell of
burning during regeneration.
Use the parking heater in cold weather - the
engine then reaches normal operating tempera-
ture more quickly.
When driving short distances at low
speeds in a petrol car
The capacity of the petrol emission control sys-
tem is affected by how the car is driven. It is
important to drive varying distances at different
speeds to achieve optimal performance.
Driving short distances at low speeds (or in cold
climates) frequently, where the engine does not
reach normal operating temperature, can lead to
problems that can eventually cause a malfunction
and trigger a warning message. If the vehicle is
mostly driven in city traffic, it is important to regu-