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:
Introduction
All bulb specifications are listed on page 311. The following bulbs should only
be replaced by a trained and qualified Volvo service technician:
Dome lighting
Reading lights
Glove compartmen ...
Interior
Yes, I've already mentioned the S60's copper color, and I might have
mentioned how much I really liked it. Well, guess what? The S60's interior is
copper, too. Actually, it's called Beechwood Brow ...
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly
involving the electrical, fuel or distributor ignition systems, may cause unusually
high threeway catalytic converte ...
