JL Wrangler SERVICING & MAINTENANCE

wayoflife

Administrator
Staff member
JL WRANGLER SERVICING AND MAINTENANCE
Mileage or time passed (whichever comes first)

20,000 miles or 2 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the front and rear axle fluid.
- Inspect the brake linings, replace as necessary.
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace air conditioning/cabin air filter.

30,000 miles or 3 years
- Inspect transfer case fluid.
- Replace engine air cleaner filter.
- Replace Spark Plugs – 2.0L Engine**
- 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).

40,000 miles or 4 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the brake linings, replace as necessary
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace air conditioning/cabin air filter.
- Change front and rear axle fluid if using your vehicle for police, taxi, fleet, off-road or frequent trailer towing.

50,000 miles or 5 years
- No service required.

60,000 miles or 6 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the front and rear axle fluid.
- Inspect the brake linings, replace as necessary.
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace engine air cleaner filter.
- Replace air conditioning/cabin air filter.
- Replace Spark Plugs – 2.0L Engine**
- 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).
- Change transfer case fluid if using your vehicle for any of the following: police, taxi, fleet, or frequent trailer towing.

70,000 miles or 7 years
- No service required.

80,000 miles or 8 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the brake linings, replace as necessary
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace air conditioning/cabin air filter.
- Change front and rear axle fluid if using your vehicle for police, taxi, fleet, off-road or frequent trailer towing.

90,000 miles or 9 years
- Inspect transfer case fluid.
- Replace engine air cleaner filter.
- Replace Spark Plugs – 2.0L Engine**
- 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).

100,000 miles or 10 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the front and rear axle fluid.
- Inspect the brake linings, replace as necessary.
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace air conditioning/cabin air filter.
- Replace spark plugs – 3.6L Engine**
- Flush and replace the engine, intercooler (if equipped), battery (if equipped), and Motor Generator Unit (MGU) (if equipped) coolant at 10 years or 150,000 miles (240,000 km) whichever comes first.
- Inspect and replace PCV valve if necessary.

110,000 miles or 11 years
- No service required.

120,000 miles or 12 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the brake linings, replace as necessary
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace engine air cleaner filter.
- Replace air conditioning/cabin air filter.
- Replace Spark Plugs – 2.0L Engine**
- 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).
- Change transfer case fluid if using your vehicle for any of the following: police, taxi, fleet, or frequent trailer towing.
- Change front and rear axle fluid if using your vehicle for police, taxi, fleet, off-road or frequent trailer towing.

130,000 miles or 13 years
- No service required.

140,000 miles or 14 years
- Inspect the CV/Universal joints.
- Inspect front suspension, tie rod ends, and replace if necessary.
- Inspect the front and rear axle fluid.
- Inspect the brake linings, replace as necessary.
- Adjust parking brake on vehicles equipped with four wheel disc brakes.
- Replace air conditioning/cabin air filter.

150,000 miles or 15 years
- Inspect transfer case fluid.
- Replace engine air cleaner filter.
- Replace Spark Plugs – 2.0L Engine**
- Flush and replace the engine, intercooler (if equipped), battery (if equipped), and Motor Generator Unit (MGU) (if equipped) coolant at 10 years or 150,000 miles (240,000 km) whichever comes first.
- 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).


** The spark plug change interval is mileage based only, yearly intervals do not apply.
 

wayoflife

Administrator
Staff member
SCHEDULED SERVICING
Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) or 350 hours of engine run time if the vehicle is operated in a dusty and off road environment or is operated predominately at idle or only very low engine RPM’s. This type of vehicle use is considered Severe Duty.

Once A Month Or Before A Long Trip:
- Check engine oil level
- Check windshield washer fluid level
- Check the tire inflation pressures and look for unusual wear or damage
- Check the fluid levels of the coolant reservoir, brake master cylinder, power steering and automatic transmis- sion, and fill as needed
- Check function of all interior and exterior lights

At Every Oil Change Interval As Indicated By Oil Change Indicator System:
- Change oil and filter
- Rotate the tires
- Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on
- Inspect battery and clean and tighten terminals as required
- Inspect automatic transmission fluid if equipped with dipstick
- Inspect brake pads, shoes, rotors, drums, hoses and park brake
- Inspect engine cooling system protection and hoses Inspect exhaust system
- Inspect engine air cleaner if using in dusty or off-road conditions
- Inspect all door latches for presence of grease, reapply if necessary.
 

JTCO

Meme King
Spark plugs due every 30k on the turbo engine. Interesting, as the general industry standard for most manufacturers has been 100k for the last decade or so.
 

wayoflife

Administrator
Staff member
Spark plugs due every 30k on the turbo engine. Interesting, as the general industry standard for most manufacturers has been 100k for the last decade or so.

LOL!! About the first thing Cindy and I saw too - we thought, WTH :eek: :D
 

JTCO

Meme King
Yeah the spark plug thing is interesting for sure. Is that with most turbo’s? I don’t recall for my Subaru I had

Even with a turbo, 30k seems a little excessive. But there is so much fine tuning nowadays and special plugs with certain heat ranges, I would trust the engineering. Not only do they have to meet the performance aspect, they also have to meet the demands of federal emissions. It can get really tricky and specific.

EDIT: On top of that, with abnormal combustion, if you run on the lean side, it doesn't take long to burn a valve or piston. Better to be on the safer side of things.
 

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