2009 JEEP WRANGLER air filter

Problems that result from using methanol/gasoline
blends are not the responsibility of the manufacturer.
While MTBE is an oxygenate made from Methanol, it
does not have the negative effects of Methanol.
E-85 Usage In Non-Flex Fuel Vehicles
Non-FFV vehicles are compatible with gasoline contain-
ing 10% ethanol (E10). Gasoline with higher ethanol
content may void the vehicle’s warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•operate in a lean mode
•OBD II “Malfunction Indicator Light” on
•poor engine performance
•poor cold start and cold drivability
•increased risk for fuel system component corrosionTo fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
•drain the fuel tank (see your authorized dealer)
•change the engine oil and oil filter
•disconnect and reconnect the battery to reset the
engine controller memory
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase the octane num-
ber. Gasoline blended with MMT offers no performance
advantage beyond gasoline of the same octane number
without MMT. Gasoline blended with MMT has shown
to reduce sparkplug life and reduce emission system
performance in some vehicles. The manufacturer recom-
mends that gasoline without MMT be used in your
358 STARTING AND OPERATING

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment – 3.8L .............. 401
 Onboard Diagnostic System — OBD II ...... 402
▫ Loose Fuel Filler Cap Message ........... 402
 Emissions Inspection And Maintenance
Programs ............................ 403
 Replacement Parts ..................... 404
 Dealer Service ........................ 405
 Maintenance Procedures ................. 405
▫ Engine Oil ......................... 406 ▫
Engine Oil Filter ..................... 408
▫ Engine Air Cleaner Filter ............... 409
▫ Maintenance-Free Battery .............. 409
▫ Air Conditioner Maintenance ............ 410
▫ Body Lubrication .................... 411
▫ Windshield Wiper Blades ............... 412
▫ Adding Washer Fluid ................. 412
▫ Exhaust System ..................... 413
▫ Cooling System ..................... 416
7

ENGINE COMPARTMENT – 3.8L
1 — Integrated Power Module7 — Washer Fluid Reservoir
2 — Battery 8 — Engine Coolant Reservoir
3 — Automatic Transmission Dipstick 9 — Air Cleaner Filter
4 — Engine Oil Fill 10 — Coolant Pressure Cap
5 — Engine Oil Dipstick 11 — Power Steering Fluid Reservoir
6 — Brake Fluid Reservoir
7
MAINTAINING YOUR VEHICLE 401

Engine Oil Viscosity (SAE Grade)
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy.
The engine oil filler cap also shows the recommended
engine oil viscosity for your engine. For information on
engine oil filler cap location, refer to “Engine Compart-
ment” in this section.
Lubricants which do not have both, the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber, should not be used.
Synthetic Engine Oils
Synthetic engine oils can be used if the recommended oil
quality requirements are met, and the recommended
maintenance intervals for oil and filter changes are
followed.
Materials Added to Engine Oils
The manufacturer strongly recommends against the ad-
dition of any additives (other than leak detection dyes) to
engine oil. Engine oil is an engineered product and its
performance may be impaired by supplemental
additives.
Disposing of Used Engine Oil and Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your authorized dealer, service
station, or governmental agency for advice on how and
where used oil and oil filters can be safely discarded in
your area.
Engine Oil Filter
The engine oil filter should be replaced at every engine
oil change.
408 MAINTAINING YOUR VEHICLE

Engine Oil Filter Selection
All of the manufacturer’s engines have a full-flow type
disposable oil filter. Use a filter of this type for replace-
ment. The quality of replacement filters varies consider-
ably. Only high quality filters should be used to assure
most efficient service. MOPARengine oil filters are high
quality oil filters and are recommended.
Engine Air Cleaner Filter
Refer to the “Maintenance Schedule” in Section 8 for the
proper maintenance intervals.
WARNING!
The air cleaner can provide protection in the case of
engine backfire. Do not remove the air cleaner unless
it is necessary for repair or maintenance. Make sure
that no one is near the engine compartment before
starting the vehicle with the air cleaner removed.
Failure to do so can result in serious personal injury.
Engine Air Cleaner Filter Selection
The quality of replacement engine air cleaner filters
varies considerably. Only high quality filters should be
used to assure most efficient service. MOPAR engine air
cleaner filters are a high quality filter and are
recommended.
Maintenance-Free Battery
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, nor is periodic main-
tenance required.
WARNING!
Battery posts, terminals, and related accessories con-
tain lead and lead compounds. Always wash hands
after handling the battery.7
MAINTAINING YOUR VEHICLE 409

6,000 Miles (10,000 km) or
6 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
12,000 Miles (20,000 km) or 12 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If using your vehicle for any of the following: Dusty or off-road conditions. Inspect the
engine air cleaner filter, replace if necessary.
❏ Inspect the brake linings, replace if necessary.
❏ Inspect exhaust system. Perform the first inspection at 12,000 miles (20 000 km) or
12 months.
❏ Inspect the CV joints. Perform the first inspection at 12,000 miles (20 000 km) or
12 months.
❏ Inspect the front suspension, tie rod ends and boot seals; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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18,000 Miles (30,000 km) or
18 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the front & rear axle fluid, change
if using your vehicle for police, taxi, fleet,
off-road or frequent trailer towing.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
24,000 Miles (40,000 km) or 24 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ If using your vehicle for any of the following: Dusty or off-road conditions. Inspect the
engine air cleaner filter, replace if necessary.
❏ Inspect the brake linings, replace if necessary.
❏ Inspect the CV joints.
❏ Inspect exhaust system.
❏ Inspect the front suspension, tie rod ends and boot seals; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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30,000 Miles (50,000 km) or 30 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Change the manual transmission fluid if using your vehicle for any of the following: trailer
towing, snow plowing, heavy loading, taxi, police, delivery service (commercial service),
off-road, desert operation or more than 50% of your driving is at sustained high speeds
during hot weather, above 90°F (32°C).
❏ Inspect the transfer case fluid.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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