2009 Lexus SC 430 Owners Manual - Page 337

6-1. Specifications n Lexus does not recommend gasoline containing MMT Some gasoline contain an octane enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl). Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel containing MMT is used, your emission control system may be adversely affected. The Malfunction Indicator Lamp on the instrument cluster may come on. If this happens, contact your Lexus dealer for service. NOTICE n Notice of fuel quality l Do not use improper fuels. If improper fuels are used the engine will be damaged. l Do not use leaded gasoline. Leaded gasoline can cause damage to your vehicle's three-way catalytic converters causing the emission control system to malfunction. l Do not use gasohol other than stated above. It will cause fuel system damage or vehicle performance problems. l Use of unleaded fuel with an octane number or rating lower than stated above will cause persistent heavy knocking. If severe, this will lead to engine damage. n Fuel-related poor driveability If after using a different type of fuel, poor driveability is encountered (poor hot starting, vaporization, engine knocking, etc.), discontinue the use of that type of fuel. n When refueling with gasohol 6 Vehicle specifications Take care not to spill gasohol. It may cause paint damage. 343