Fuel Requirements; Octane Rating; Deposit Control Gasoline (Detergent Additives); Unleaded Fuel - Volvo S40 2005 Owner's Manual

2005 Volvo S40
Your retailer will also be able to supply you with bulbs, fuses, spark plugs and wiper blades for your use
in the event that problems occur.
As a minimum, the following items should be checked before any long trip:
Check that engine runs smoothly and that fuel consumption is normal.
Check for fuel, oil, and fluid leakage
Have the transmission oil level checked
Check condition of drive belts.
Check state of the battery's charge.
Examine tires carefully (the spare tire as well), and replace those that are worn. Check tire pressures.
The brakes, front wheel alignment, and steering gear should be checked by your Volvo retailer only.
Check all lights, including high beams.
Reflective warning triangles are legally required in some states/provinces.
Have a word with your Volvo retailer if you intend to drive in countries where it may be difficult to
obtain the correct fuel.
Consider your destination. If you will be driving through an area where snow or ice are likely to
occur, consider snow tires.
2. To prevent injury from contact with hot surfaces, do not inspect your vehicle's transmission fluid
yourself. Have your vehicle's transmission fluid level inspected by a qualified Volvo service technician.
pg. 101 Fuel requirements

Octane rating

Volvo engines are designed for optimum performance on unleaded premium gasoline with an AKI
octane rating of 91 or above. AKI (ANTI KNOCK INDEX) is an average of the Research Octane
Number, RON, and the Motor Octane Number, MON. ((RON + MON)/2). The minimum octane
requirement is AKI 87 (RON 91).

Deposit control gasoline (detergent additives)

Volvo recommends the use of detergent gasoline to control engine deposits. Detergent gasoline is
effective in keeping injectors and intake valves clean. Consistent use of deposit control gasolines will
help ensure good driveability and fuel economy. If you are not sure whether the gasoline contains
deposit control additives, check with the service station operator.
NOTE: Volvo does not recommend the use of store-bought fuel injector cleaning additives.

Unleaded fuel

Each Volvo has a three-way catalytic converter and must use only unleaded gasoline. U.S. and Canadian
regulations require that pumps delivering unleaded gasoline be labelled "UNLEADED". Only these
pumps have nozzles which fit your vehicle's filler inlet. It is unlawful to dispense leaded fuel into a
vehicle labelled "unleaded gasoline only". Leaded gasoline damages the three-way catalytic converter
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