Question Answer
What is the fan noise I hear from
the rear of my hybrid?
The fan noise comes from a fan
located inside the high voltage
battery. This fan turns on when
the battery requires cooling air.
The fan speed, and associated
noise level, will change according
to the amount of cooling required
to maintain good performance.
Maintaining the battery
temperature at optimal conditions
also prolongs the useful life of the
battery and helps to achieve better
fuel economy.
What is the engine oil change
service interval?
The engine oil should be changed
every 10000 miles (16000 km)
under normal operating conditions.
See the Scheduled maintenance
information.
Can I put E15 or E85 in my
vehicle, and how will it affect my
fuel economy?
Your hybrid vehicle can use E15
(15% ethanol, 85% gasoline) fuel,
but you may notice slightly
reduced fuel economy because
ethanol contains less energy per
gallon than gasoline. Your hybrid
vehicle is not designed to use E85
(85% ethanol).
How long will my high voltage
battery last? Does it need
maintenance?
The high voltage battery system is
designed to last the life of the
vehicle and requires no
maintenance.
182 Unique Driving Characteristics
2013 C-Max Full Hybrid (34h)
Owners Guide gf, 2nd Printing
USA (fus)
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