FORD 2013 C-MAX Hybrid v.3 - Manual (Page 193)

Octane Recommendations
Regular unleaded gasoline with a
pump (R+M)/2 octane rating of 87 is
recommended. Some 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.
Regular unleaded gasoline with a pump (R+M)/2 octane rating of 87 is
recommended. Some 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.
Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your authorized dealer to
prevent any engine damage.
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 mode will not be
available.
• Most of the plug-in power will be stored until fuel freshness mode is
completed.
87
(R+M)/2 METHOD
192 Fuel and Refueling
2013 C-Max Full Hybrid (34h)
Owners Guide gf, 3rd Printing, January 2013
USA (fus)