2011 Toyota Yaris Owners Manual - Page 789

6-1. Specifications NOTICE n Notice on 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 that stated here. Other gasohol may cause fuel system damage or vehicle performance problems. l Use of unleaded gasoline with an octane rating lower than 87 may result in engine knocking. Persistent knocking can lead to engine damage and should be corrected by refueling with higher octane unleaded gasoline. 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 Take care not to spill gasohol. It can damage your vehicle's paint. 6 Vehicle specifications 369