2002 Saab 9-5 Owner's Manual - Page 155

Starting and driving Canada Only Be sure the posted octane is at least 87. If the octane is less than 87, you may get a heavy knocking noise when you drive. If it's bad enough, it can damage your engine. If you're using fuel rated at 87 octane or higher and you hear heavy knocking, your engine needs service. But don't worry if you hear a little pinging noise when you're accelerating or driving up a hill. That's normal, and you don't have to buy a higher octane fuel to get rid of pinging. It's the heavy, constant knock that means you have a problem. If your vehicle is certified to meet California Emission Standards (indicated on the underhood emission control label), it is designed to operate on fuels that meet California specifications. If such fuels are not available in states adopting California emissions standards, your vehicle will operate satisfactorily on fuels meeting federal specifications, but emission control system performance may be affected. The "Engine malfunction (CHECK ENGINE)" indicator on your main instrument panel may turn on and/or your vehicle may fail a smog-check test. See "Engine malfunction (CHECK ENGINE)" indicator on page 53. If this occurs, return to your authorized Saab dealer for diagnosis to determine the cause of failure. In the event it is determined that the cause of the condition is the type of fuels used, repairs may not be covered by your warranty. Some gasolines that are not reformulated for low emissions may contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask your service station operator whether or not the fuel contains MMT. Saab Automobile AB does not recommend the use of such gasolines. If fuels containing MMT are used, spark plug life may be reduced and your emission control system performance may be affected. The malfunction indicator lamp on your instrument panel may turn on. If this occurs, return to your authorized Saab dealer for service. 155 Engine Break-In Period Pistons, bores and bearings need time to obtain uniform, wear-resistant surfaces. If a new engine is driven too hard, this gradual process of bedding-in will not be possible and the life of the engine will be shortened. During the first 1,200 miles (2,000 km), do not exceed 5,000 rpm. In addition, refrain from driving the car at full throttle, other than for brief instances, during the first 1,800 miles (3,000 km). Wearing in new brake pads New brake pads take time to bed in, about 90 miles (150 km) if the car is driven largely under stop-and-go conditions or about 300 miles (500 km) of highway driving. To extend the useful life of the pads, avoid hard braking as much as possible during this period.