2009 JEEP GRAND CHEROKEE gas type

For best results, a refueling pattern that avoids alternat-
ing between E-85 and unleaded gasoline is recom-
mended.
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
STARTING AND OPERATING 363
5

3.0L Diesel Engine Only
Anytime the oil is drained and filled it is very important
to wait 15 minutes before starting the engine.
Engine Oil Selection — Gasoline Engines
For best performance and maximum protection for all
engines under all types of operating conditions, the
manufacturer recommends engine oils that are API Cer-
tified and meet the requirements of Chrysler Material
Standard MS-6395.
American Petroleum Institute (API) Engine Oil
Identification Symbol
This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacturer only recommends
API Certified engine oils.
Engine Oil Selection - Diesel Engines
For best performance and maximum protection for all
engines under all types of operating conditions, the
manufacturer recommends engine oils that meet the
requirements of Chrysler Material Standard MS-11106, or
Mercedes Benz MB 229.31 or MB 229.51 and ACEA C3
qualified engine oils
MAINTAINING YOUR VEHICLE 415
7

•Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be periodically inspected.
Refer to the “Maintenance Schedule” in Section 8 for the
proper maintenance interval.
WARNING!
Riding the brakes can lead to brake failure and
possibly an accident. Driving with your foot resting
or riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You wouldn’t have your full
braking capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the brake system warning lamp indicates system
failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” dot and a “MIN” dot. The fluid level must be
kept within these two dots. Do not add fluid above the
MAX mark, because leakage may occur at the cap.
430 MAINTAINING YOUR VEHICLE

EMISSIONS CONTROL SYSTEM MAINTENANCE
The Scheduled Maintenance services listed inbold type
must be done at the times or mileages specified to ensure
the continued proper functioning of the emissions control
system. These and all other maintenance services in-
cluded in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions, such as dusty areas and very short trip
driving.
Inspection and service should also be done anytime a
malfunction is suspected.
NOTE:Maintenance, replacement or repair of the emis-
sions control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part that has been
certified pursuant to U.S. EPA or in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
Maintenance Schedule — Gasoline Engine
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
On Electronic Vehicle Information Center (EVIC)
equipped vehicles “Oil Change Required” will be dis-
played in the EVIC and a single chime will sound,
indicating that an oil change is necessary.
Based on engine operation conditions the oil change
indicator message will illuminate, this means that service
is required for your vehicle. Have your vehicle serviced
as soon as possible, within the next 500 miles (805 km).
NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicles oil
462 MAINTENANCE SCHEDULES
8
M
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T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Rear Heated Seats....................... 120
Rear Park Sense System................... 147
Rear Seat, Folding....................... 122
Rear Window Defroster................... 173
Rear Window Features.................... 172
Rear Wiper/Washer...................... 172
Rearview Mirrors........................ 78
Reclining Front Seats..................... 116
Recorder, Event Data...................... 56
Recreational Towing...................... 382
Shifting into Transfer Case Neutral (N)....... 383
Shifting out of Transfer Case Neutral (N)..... 385
Reformulated Gasoline.................... 356
Refrigerant............................ 420
Reminder, Lights On..................... 135
Reminder, Seat Belt....................... 44
Remote Control
Starting System........................ 27
Remote Keyless Entry (RKE)................. 21Remote Sound System (Radio) Controls........ 258
Remote Starting System.................... 27
Replacement Bulbs....................... 449
Replacement Keys........................ 18
Replacement Parts....................... 413
Replacement Tires....................... 342
Reporting Safety Defects................... 492
Restraints, Child......................... 58
Restraints, Occupant...................... 36
Retractable Cargo Area Cover............... 168
Rocking Vehicle When Stuck................ 295
Roll Over Warning........................ 5
Roof Type Carrier....................... 174
Rotation, Tires.......................... 344
Safety Checks Inside Vehicle................. 70
Safety Checks Outside Vehicle............... 71
Safety Defects, Reporting.................. 492
Safety, Exhaust Gas....................... 69
INDEX 511
10