2002 Saab 9-3 Owner's Manual - Page 153

Starting and driving Other, less common, fuel additives used by some gasoline dealers are also acceptable, provided that the resultant gasoline is not more than 2.7% oxygen by weight. In many cases, you may not be able to determine the exact type or percentage by volume of fuel additive in the gasoline you purchase for your car. Some Canadian and U.S. gasolines contain an octane enhancing additive called methlycyclopentadienyl manganese tricarbonyl (MMT). If such fuel is used, your emission control system performance may deteriorate and the malfunction indicator lamp on your instrument panel may turn on. If this occurs, return to your authorized Saab dealer for service. However, these blended gasolines are regulated and should never exceed these recommended blend percentages and service station operators should know if their gasolines contain detergents and oxygenates, and have been reformulated to reduce vehicle emissions. Nevertheless, if you begin to notice a problem with the way your car starts or runs shortly after it has been refueled, try a different brand of gasoline. 153 NOTE Higher concentrations of methanol than listed above, or the use of methanolblended gasoline without suitable co-solvents and corrosion inhibitors, can damage your car's fuel system, leading to the need for repairs which are not covered by Saab's product warranty. NOTE The engine control module (ECM) monitoring the engine parameters also stores fault codes. Under certain circumstances, this may cause constant illumination of the Engine malfunction (CHECK ENGINE) lamp , thus indicating a fault that must be checked by your Saab dealer, see page 63. NOTE: always observe the following two measures: • Make sure that the fuel filler cap is screwed on correctly before the engine is started. Screw on the fuel filler cap until you hear three distinct clicks. • Avoid driving with the fuel low level indicator illuminated. The symbol illuminates when less than approximately 2.5 gallons (10 litres) of fuel remains in the tank.