2003 Honda S2000 Owner's Manual - Page 119

Break-in Period, Gasoline Break-in Period Help assure your car's future reliability and performance by paying extra attention to how you drive during the first 600 miles (1,000 km). During this period: Avoid full-throttle starts and rapid acceleration. Do not exceed 5,500 rpm for the first 600 miles (1,000 km) of operation. Avoid hard braking. New brakes need to be broken-in by moderate use for the first 200 miles (300 km). Do not change the oil until the recommended time or mileage interval shown in the maintenance schedule. You should follow these same recommendations with an overhauled or exchanged engine, or when the brakes are relined. Gasoline Your Honda is designed to operate on premium unleaded gasoline with a pump octane number of 91 or higher. If you are unable to find premium unleaded gasoline, you may substitute an unleaded regular gasoline. The engine will compensate for the lower octane, but you may notice a slight decrease in power as a result. We recommend gasolines containing detergent additives that help prevent fuel system and engine deposits. Using gasoline containing lead will damage your car's emissions controls. This contributes to air pollution. In Canada, some gasolines contain an octane-enhancing additive called MMT. If you use such gasolines, your emission control system performance may deteriorate and the Malfunction Indicator Lamp on your instrument panel may turn on. If this happens, contact your authorized Honda dealer for service. 120 Before Driving