engine oil JEEP WRANGLER 2012 JK / 3.G Owner's Manual

CAUTION!
Do not use chemical flushes in your transmission as
the chemicals can damage your transmission compo-
nents. Such damage is not covered by the New
Vehicle Limited Warranty.
Fluid Level Check
Check the fluid level while the transmission is at normal
operating temperature 180° F (82° C). This occurs after at
least 15 miles (25 km) of driving. At normal operating
temperature, the fluid cannot be held comfortably be-
tween the fingertips.
To properly check the automatic transmission fluid level,
the following procedure must be used:
1. Operate the engine at idle speed and normal operating
temperature.
2. The vehicle must be on level ground.3. Fully apply the parking brake.
4. Place the shift lever momentarily into each gear posi-
tion ending with the shift lever in PARK.
5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the HOT
(upper) reference holes on the dipstick at normal operat-
ing temperature. Verify that a solid coating of oil is seen
on both sides of the dipstick. If the fluid is low, add as
required into the dipstick tube.
Do not overfill.After
adding any quantity of oil through the dipstick tube, wait
a minimum of two minutes for the oil to fully drain into
the transmission before rechecking the fluid level.
NOTE: If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two cold (lower) holes on the dipstick with
538 MAINTAINING YOUR VEHICLE

FLUID CAPACITIES
U.S.Metric
Fuel (Approximate) — Two Door Models 18.6 Gallons70 Liters
Fuel (Approximate) — Four Door Models 22.5 Gallons85 Liters
Engine Oil with Filter
3.6 Liter Engine 6 Quarts5.6 Liters
Cooling System *
3.6 Liter Engine (MOPAR Antifreeze/Engine Coolant
5 Year/100,000 Mile Formula or equivalent) 10.5 Quarts
9.9 Liters
* Includes coolant recovery bottle filled to MAX level.
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FLUIDS, LUBRICANTS AND GENUINE PARTS
Engine
ComponentFluid, Lubricant, or Genuine Part
Engine Coolant MOPARAntifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid
Organic Additive Technology) or equivalent.
Engine Oil Use API Certified SAE 5W-30 Engine Oil, meeting the requirements of
Chrysler Material Standard MS-6395. Refer to your engine oil filler cap for
correct SAE grade.
Engine Oil Filter MOPAREngine Oil Filter or equivalent.
Spark Plugs RER8ZWYCB4 (Gap 0.043 in [1.1 mm])
Fuel Selection 87 Octane
560 MAINTAINING YOUR VEHICLE

MAINTENANCE SCHEDULE
The Scheduled Maintenance services listed in this
manual must be done at the times or mileages specified
to protect your vehicle warranty and ensure the 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.
Your vehicle is equipped with an automatic oil change
indicator system. 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.On Non-EVIC equipped vehicles, “Change Oil” will flash
in the instrument cluster odometer 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 ser-
vice is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures, and E85 fuel usage will
influence when the “Change Oil” message is displayed.
Depending on operating conditions, the message may
appear as early as 3,500 miles (5 630 km) since last reset.
Have your vehicle serviced as soon as possible, within
the next 500 miles (805 km).
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NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s
oil if it has been six months since your last oil change,
even if the oil change indicator message is NOT
illuminated.
•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 8,000 miles (13 000 km) or six months, which-
ever comes first.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Electronic Vehicle
Information Center (EVIC)/Oil Change Required” in “Understanding Your Instrument Panel” or under “In-
strument Cluster Description/Odometer/Trip Odom-
eter” in “Understanding Your Instrument Panel” for
further information.
At Each Stop For Fuel
•Check the engine oil level about five minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required.
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Once A Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of coolant reservoir, brake
master cylinder, power steering and transmission and
add as needed.
•Check all lights and other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the brake hoses and lines.
•Check the manual transmission fluid level.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
Required Maintenance Intervals
Refer to the Maintenance Schedules on the following
pages for the required maintenance intervals.
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8,000 Miles (13,000 km) or
6 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate the tires, rotate at the first sign of
irregular wear, even if it occurs before
8,000 miles (13 000 km).
❏ Inspect all door latches for presence of
grease, reapply if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
16,000 Miles (26,000 km) or 12 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate the tires, rotate at the first sign of irregular wear, even if it occurs before
16,000 miles (26 000 km).
❏ Inspect all door latches for presence of grease, reapply if necessary.
❏ If using your vehicle for any of the following: Dusty or off-road conditions. Inspect the
engine air cleaner filter; replace if necessary.
❏ Replace the air conditioning filter.
❏ Inspect the brake linings, replace if necessary.
❏ Inspect exhaust system. Perform the first inspection at 16,000 miles (26 000 km) or
12 months.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
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24,000 Miles (39,000 km) or
18 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate the tires, rotate at the first sign of
irregular wear, even if it occurs before
24,000 miles (39 000 km).
❏ Inspect all door latches for presence of
grease, reapply if necessary.
❏ Inspect the CV joints.
❏ Inspect exhaust system.
❏ Inspect the front and rear axle fluid.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
32,000 Miles (52,000 km) or 24 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate the tires, rotate at the first sign of irregular wear, even if it occurs before
32,000 miles (52 000 km).
❏ Inspect all door latches for presence of grease, reapply if necessary.
❏ Replace the engine air cleaner filter.
❏ Replace the air conditioning filter.
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Inspect the transfer case fluid.
❏ Inspect the brake linings, replace if necessary.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
❏ 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).
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
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40,000 Miles (65,000 km) or
30 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate the tires, rotate at the first sign of
irregular wear, even if it occurs before
40,000 miles (65 000 km).
❏ Inspect all door latches for presence of
grease, reapply if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
48,000 Miles (78,000 km) or 36 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate the tires, rotate at the first sign of irregular wear, even if it occurs before
48,000 miles (78 000 km).
❏ Inspect all door latches for presence of grease, reapply if necessary.
❏ If using your vehicle for any of the following: Dusty or off-road conditions. Inspect the
engine air cleaner filter; replace if necessary.
❏ Replace the air conditioning filter.
❏ Inspect the brake linings, replace if necessary.
❏ Inspect the CV joints.
❏ Inspect exhaust system.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
❏ Inspect the front and 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 Service Center
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56,000 Miles (91,000 km) or
42 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate the tires, rotate at the first sign of
irregular wear, even if it occurs before
56,000 miles (91 000 km).
❏ Inspect all door latches for presence of
grease, reapply if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature, Authorized Service Center
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