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2018–2024 Jeep Wrangler

2018-2024 Jeep Wrangler - Oil Change

By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 19, 2026

🔧🔧 Moderate 30-45 minutes $42 DIY

Save $48 by doing it yourself! Shop cost: $90

Quick answer: Oil Change on a 2018–2024 Jeep Wrangler is rated Moderate and takes about 30-45 minutes. You'll need 5 tools for this job, and parts cost about $42. This guide walks you through the full job step by step, including the mistakes to avoid.

Quick Video Tutorial

Parts You Need

Total Cost
$42.00
Oil spec 3.6L V6 (Pentastar)
Capacity 5.0 qt with filter Viscosity 0W-20 Spec MS-6395
Part Name Part Number Price Buy
Engine Oil (0W-20) — $30.00
Oil filter — $12.00
Drain plug washer — —

About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.

💡 Pro tip: Order all parts at once to save on shipping

Step-by-Step Instructions

Follow these steps carefully

1

Prep the Jeep for a clean job

Confirm oil weight and capacity from your manual and filler-cap stamp before buying. Pop the hood. Warm the engine 5–10 minutes; park on level ground, brake set, wheels chocked.

2

Open the filler and get under the Jeep

Twist the fill cap open and leave it resting in the neck so the crankcase breathes and oil drains faster. Find the oil pan; the drain plug faces down toward the rear. If you lift it, use rated jack stands on the frame rails — never a lone jack.

3

Drain the oil pan

Fit a 13 mm socket on the drain plug (half-inch works too) and turn counter-clockwise to break it loose, then finish unscrewing by hand while pushing inward so the plug does not drop into the hot oil. Pull it away quickly when the last thread lets go to keep the splash contained. Let the pan drain until the stream becomes a slow drip — give it a full ten minutes. Wipe the plug clean and inspect its threads; the threads in the oil pan are aluminum and strip easily, so plan to thread it back by hand first and only then snug it with the socket to the manual’s spec.

4

Open the cartridge filter housing

Fit a 15⁄16-inch (24 mm) socket with an extension on the cap's hex and turn counter-clockwise. Unthread the last turns by hand, lift straight up, and set cap-down on a protected surface.

5

Swap the cartridge element and O-ring

Pull the old cartridge straight off the cap — it snaps on and off. Press the new cartridge onto the cap until it clicks, and compare old and new side by side to confirm the size and shape match. Also fish the old O-ring from its groove and wipe it clean — leftover grit or rubber will cause a leak.

6

Seat the cap and close the housing

Lower the cap and cartridge straight into the housing, keeping it upright. Start the threads by hand until the cap seats — cross-threading the plastic is easy, so back off and restart if you feel resistance.

7

Check the level, run, and check for leaks

Tighten the filler cap, wait a minute, then check the dipstick — top up slowly until the level sits between the marks. Start the engine, idle a minute, and confirm the filter housing and drain plug are dry underneath.

All Done!

Test your repair before closing everything up. If something doesn't work right, double-check your steps.

⚠️ Common Mistakes to Avoid

  • • Over-tightening the plastic filter cap and cracking the housing — it only needs to be snug.
  • • Leaving the old O-ring in the cap groove, which creates a double seal and a guaranteed leak.
  • • Buying a spin-on canister filter for an older Wrangler — the 2018+ JL with the 3.6L uses a top-mounted cartridge.
  • • Forgetting to reinstall the fill cap before starting the engine after the refill.