2009 Jeep Grand Cherokee Owner's Manual - Page 365
2009 Jeep Grand Cherokee Manual
Page 365 highlights
STARTING AND OPERATING 363 For best results, a refueling pattern that avoids alternating between E-85 and unleaded gasoline is recommended. When you do switch fuel types it is recommended that: • you do not add less than 5 gal (19 L) when refueling • you drive the vehicle immediately after refueling for at least 5 mi (8 km) Observing these precautions will avoid possible hard starting and/or significant deterioration in drivability during warm up. NOTE: Use seasonally adjusted E-85 fuel (ASTM D5798). With non-seasonally adjusted E-85 fuel, you may experience hard starting and rough idle following start up even if the above recommendations are followed, especially when the ambient temperature is below 32°F (0°C). Selection Of Engine Oil For Flexible Fuel Vehicles (E-85) and Gasoline Vehicles Whether operating the vehicle on an E-85 ethanol fuel or unleaded gasoline, the engine oil requirements are the same. Refer to "Maintenance Procedures" in Section 7 of this manual for the proper quality and viscosity engine oil. Starting The characteristics of E-85 fuel make it unsuitable for use when ambient temperatures fall below 0°F (-18°C). In the range of 0° to 32°F (-18° to 0°C), you may experience an increase in the time it takes for your engine to start, and a deterioration in drivability (sags and/or hesitations) until the engine is fully warmed up. Cruising Range Because E-85 fuel contains less energy per gallon/liter than gasoline, you will experience an increase in fuel 5