See also:

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 ...

Washing the car
The following points should be kept in mind when washing and cleaning the car: The car should be washed at regular intervals since dirt, dust, insects and tar spots adhere to the paint and may ...

Handling, roadholding
Vehicle load, tire design and inflation pressure all affect vehicle handling. Therefore, check that the tires are inflated to the recommended pressure according to the vehicle load. See the &q ...