2001 Mercury Cougar Owner Guide 2nd Printing - Page 240

Maintenance and care Choosing the right fuel Use only unleaded fuel. The use of leaded fuel is prohibited by law and could damage your vehicle. The damage may not be covered by your warranty. Your vehicle was not designed to use fuel containing manganeseĆbased additives such as MMT. Additionally, vehicles certified to California emission standards (indicated on the underhood Vehicle Emission Control Information label) are designed to operate on California reformulated gasolines. If California reformulated gasoline is not available when you refuel, your vehicle can be operated on nonĆCalifornia fuels. However, even though your engine will perform adequately on other gasolines, the performance of the emission control devices and systems may be adversely affected. Repair of damage caused by a fuel that your vehicle was not designed for may not be covered by your warranty.