Fuel - Volvo V70 Owner's Manual

07 During your journey

Fuel

General information on fuel
Fuel of a lower quality than that recom-
mended by Volvo must not be used as engine
power and fuel consumption is negatively
affected.
WARNING
Always avoid inhaling fuel vapour and get-
ting fuel splashes in the eyes.
In the event of fuel in the eyes, remove any
contact lenses and rinse the eyes in plenty
of water for at least 15 minutes and seek
medical attention.
Never swallow fuel. Fuels such as petrol,
bioethanol and mixtures of them and die-
sel are highly toxic and could cause per-
manent injury or be fatal if swallowed.
Seek medical attention immediately if fuel
has been swallowed.
WARNING
Fuel which spills onto the ground can be
ignited.
07
Switch off the fuel-driven heater before
starting to refuel.
Never carry an activated mobile phone
when refuelling. The ring signal could
cause spark build-up and ignite petrol
fumes, leading to fire and injury.
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IMPORTANT
Mixing different types of fuel or the use of
fuel not recommended invalidates Volvo's
guarantees, and any associated service
agreement. This applies to all engines.
NOTE: It does not apply to cars with
engines that are adapted to run on ethanol
fuel (E85).
NOTE
Extreme weather conditions, driving with a
trailer or driving at high altitudes in combi-
nation with fuel grade are factors that
could affect the car's performance.
Catalytic converters
The purpose of the catalytic converters is to
purify exhaust gases. They are located close
to the engine so that operating temperature is
reached quickly.
The catalytic converters consist of a monolith
(ceramic or metal) with channels. The channel
walls are lined with a thin layer of platinum/
rhodium/palladium. These metals act as cata-
lysts, i.e. they participate in and accelerate a
chemical reaction without being used up
themselves.
TM
Lambda-sond oxygen sensor
The Lambda-sond is part of a control system
intended to reduce emissions and improve
fuel economy.
An oxygen sensor monitors the oxygen con-
tent of the exhaust gases leaving the engine.
This value is fed into an electronic system
that continuously controls the injectors. The
ratio of fuel to air directed to the engine is
continuously adjusted. These adjustments
create optimal conditions for efficient com-
bustion, and together with the three-way cat-
alytic converter reduce harmful emissions
(hydrocarbons, carbon monoxide and nitrous
oxides).
Petrol
Petrol must fulfil the EN 228 standard. Most
engines can be run with octane ratings of 95
and 98 RON. Only in exceptional cases
should 91 RON be used.
•
95 RON can be used for normal driving.
•
98 RON is recommended for optimum
performance and minimum fuel consump-
tion.
When driving in temperatures above +38 °C,
fuel with the highest possible octane rating is
recommended for optimum performance and
fuel economy.