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 drivability 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 external fuel injector cleaning systems.
See also:
Recirculation/air quality system
Recirculation
This function can be
used to shut out exhaust fumes, smoke, etc., from the passenger compartment. The
air in the passenger compartment is then recirculated, i.e., no air from outsid ...
Checking the engine oil
The oil level should be checked at regular intervals, particularly during the
period up to the first scheduled maintenance service.
See page 339 for oil specifications.
Refer to the Warranty a ...
Activating/deactivating
The control panel is activated by pressing
MODE when the audio system is switched on.
It is switched off automatically when the audio
system is switched off or by a long press on
MODE. ...
