2013 Ford C-MAX Hybrid Owner Manual Printing 3 - Page 190

Unique Driving Characteristics Question What is the fan noise I hear from the rear of my hybrid? 189 What is the engine oil change service interval? Can I put E15 or E85 in my vehicle, and how will it affect my fuel economy? How long will my high voltage battery last? Does it need maintenance? Can you charge the battery with a plug into an A/C outlet? Answer 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. The engine oil should be changed every 10000 miles (16000 km) under normal operating conditions. See the Scheduled maintenance information. 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). The high voltage battery system is designed to last the life of the vehicle and requires no maintenance. There are no provisions for charging the high voltage battery from a power supply external to the vehicle. (For C-MAX Energi vehicles, the vehicle can be plugged into a 110 volt outlet with charge cord provided.) Can I tow the Yes. Your hybrid vehicle can be flat-towed without hybrid behind my modification. See the Recreational towing section motor home with in the Towing chapter for more information. all four wheels down? 2013 C-Max Full Hybrid (34h) Owners Guide gf, 3rd Printing, January 2013 USA (fus)