2014 Ford C-MAX Energi Owner Manual - Page 138

Fuel and Refueling FUEL QUALITY Note: Use of any fuel other than those recommended may cause powertrain damage, a loss of vehicle performance and repairs may not be covered under warranty. Do not be concerned if your engine sometimes knocks lightly. However, if it knocks heavily while you are using fuel with the recommended octane rating, see your authorized dealer to prevent any engine damage. Choosing the Right Fuel Use only UNLEADED gasoline or UNLEADED gasoline blended with a maximum of 15% ethanol in your gasoline vehicle. If your vehicle is a Flex Fuel Vehicle (FFV), it will have a yellow bezel placed over the fuel fill inlet. Do not use fuels containing more than 15% ethanol or E-85 fuel fuels containing methanol fuels containing metallic based additives, including manganese-based compounds fuels containing the octane booster additive, methylcyclopentadienyl manganese tricarbonyl (MMT) leaded-fuel (The use of leaded fuel is prohibited by law) Fuel Freshness Mode (Energi Vehicles Only) This feature helps keeps the fuel system functional and the fuel fresh. If you operate your vehicle mainly in plug-in power mode using electricity from plugging in without refueling, the gasoline in your tank eventually becomes old. Old fuel can damage the engine and fuel system. To prevent the fuel from becoming old, your vehicle will automatically enter fuel freshness mode. In fuel freshness mode operates, your vehicle will operate in hybrid mode causing the gasoline engine to run in order to consume the fuel in the fuel tank. Note: If new fuel is not added during an 18 month period, fuel freshness mode will consume fuel until about 1 gallon (3.8 liters) is left in the tank. During fuel freshness mode: • The information display screen will indicate that fuel freshness mode is active. • The vehicle will only run in hybrid mode. EV Now will not be available. • Most of the plug-in power will be stored until fuel freshness mode is completed. Note: EV Now can resume if less than 1 gallon (3.8 liters) of fuel is left in the tank. Note: In most cases, when the fuel level is below 1/4 tank, refueling the vehicle will end fuel freshness mode and EV Now will now become available. Refueling after consuming a full tank in fuel freshness mode will end the mode. 136 • • Note: Use of any fuel other than the recommended fuel can cause powertrain damage, impair the emission control system or cause loss of vehicle performance. Any damage to the vehicle that is caused by the use of fuel not recommended will not be covered under warranty. Octane Recommendations Regular unleaded gasoline with a pump (R+M)/2 octane rating of 87 is recommended. Some fuel stations offer fuels posted as regular with an octane rating below 87, particularly in high altitude areas. Fuels with octane levels below 87 are not recommended. C-MAX (CCG)