See also:

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 labeled "UNLEADED". ...

Fuel Formulations
Do not use gasoline that contains lead as a knock inhibitor, and do not use lead additives. Besides damaging the exhaust emission control systems on your vehicle, lead has been strongly linked ...

Vehicle Overview
Volvo's flagship sedan was introduced for the 1999 model year and got a mildly freshened appearance for 2004. The front fascia was reworked, and the grille surround was re-profiled for a gentler t ...