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.
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Safety & Reliability
The Volvo C30 is an Insurance Institute for Highway Safety Top Safety Pick,
which means it scores the agency's highest rating, Good, in front, side and rear
crash tests, and in a new roof-strength ...
Starting the vehicle
Starting the engine
WARNING
Before starting, check that the seat, steering
wheel and mirrors are adjusted properly.
Make sure the brake pedal can be
depressed completely. Adjust the seat if
ne ...
