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Fuel - petrol
Petrol is used as fuel. Petrol must fulfil the EN 228 standard. Most engines can be run with octane ratings of 95and 98 RON. Only in exceptional casesshould 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 isrecommended for optimum performance andfuel economy.
IMPORTANT
• Always refuel with unleaded petrol so as not to damage the catalytic con-verter.
• Do not use additives not recom-mended by Volvo.
Related information
•
Fuel - handling (p. 301)
• Economical driving (p. 305)
• Fuel consumption and CO2 emissions (p. 403)
• Fuel tank - volume (p. 402)
Fuel - diesel
Diesel is used as fuel. Only use diesel fuel from well-known produc- ers. Never use diesel of dubious quality. Die-sel should fulfil the EN 590 or JIS K2204standards. Diesel engines are sensitive tocontaminants in the fuel, such as excessivelyhigh volumes of sulphur particles for exam-ple. At low temperatures (-6 °C to -40 °C), a par- affin precipitate may form in the diesel fuel,which may lead to ignition problems. Specialdiesel fuel designed for low temperaturesaround freezing point is available from themajor oil companies. This fuel is less viscousat low temperatures and reduces the risk ofparaffin precipitate. The risk of condensation in the fuel tank is reduced if the tank is kept well filled. Whenrefuelling, check that the area around the fuelfiller pipe is clean. Avoid spilling fuel onto thepaintwork. Wash off any spillage with deter-gent and water.
IMPORTANT
Only ever use fuel that fulfils the European diesel standard. The sulphur content must be a maximum of 50 ppm.
IMPORTANT
Diesel type fuels that must not be used:
• Special additives
• Marine diesel fuel
• Heating oil
• FAME 15
(Fatty Acid Methyl Ester) and
vegetable oil.
These fuels do not fulfil the requirements in accordance with Volvo recommendationsand generate increased wear and enginedamage that is not covered by the Volvowarranty.
Empty tankThe design of the fuel system in a diesel engine means that if the vehicle runs out offuel, the tank may need to be vented in theworkshop in order to restart the engine afterfuelling. Once the engine has stopped due to fuel starvation, the fuel system needs a fewmoments to carry out a check. Do this beforestarting the engine, once the fuel tank hasbeen filled with diesel:
1. Insert the remote control key in the igni- tion switch and push it in to the end posi-
15Diesel fuel may contain a certain amount of FAME, but further amounts must not be added.
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tion, see Key positions (p. 70) for more information.
2. Press the START button without
depressing the brake and/or clutch pedal.
3. Wait approx. 1 minute.
4. To start the engine: Depress the brake and/or clutch pedal and then press the START button again.
NOTE
Before filling with fuel in the event of fuel shortage:
• Stop the car on as flat/level ground as possible - if the car is tilting there is arisk of air pockets in the fuel supply.
Draining condensation from the fuel filter
The fuel filter separates condensation from the fuel. Condensation can disrupt engineoperation. The fuel filter must be drained at the intervals specified in the Service and Warranty Bookletor if you suspect that the car has been filledwith contaminated fuel. For more information,see Volvo service programme (p. 340).
IMPORTANT
Certain special additives remove the water separation in the fuel filter.
Related information
•
Fuel - handling (p. 301)
• Diesel particle filter (DPF) (p. 305)
• Fuel consumption and CO2 emissions (p. 403)
Catalytic converters
The purpose of the catalytic converters is to purify exhaust gases. They are located closeto the engine so that operating temperature isreached quickly. The catalytic converters consist of a monolith (ceramic or metal) with channels. The channelwalls are lined with a thin layer of platinum/rhodium/palladium. These metals act as cata-lysts, i.e. they participate in and accelerate achemical reaction without being used upthemselves.
Lambda-sond TM
oxygen sensorThe Lambda-sond is part of a control systemintended to reduce emissions and improvefuel economy (see Fuel consumption andCO2 emissions (p. 403)). An oxygen sensor monitors the oxygen con- tent of the exhaust gases leaving the engine.This value is fed into an electronic systemthat continuously controls the injectors. Theratio of fuel to air directed to the engine iscontinuously adjusted. These adjustmentscreate optimal conditions for efficient com-bustion, and together with the three-way cat-alytic converter reduce harmful emissions(hydrocarbons, carbon monoxide and nitrousoxides).
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