🔧 Wrangler - Engine Oil & Oil Filter Replacement

This service replaces the old engine oil and oil filter so your Wrangler’s 3.6L V6 stays properly lubricated and protected. You’ll drain the oil from the oil pan, replace the cartridge-style oil filter under the hood, then refill with fresh oil.

Difficulty Level: Beginner | Estimated Time: 30-60 minutes

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⚠️ Safety & Precautions

• ⚠️ Work on level ground so the oil level reads correctly and the vehicle stays stable.
• ⚠️ Let the engine cool until warm, not hot. Hot oil can burn skin.
• ⚠️ Wear safety glasses and gloves to protect against oil splashes.
• ⚠️ Do not overtighten the plastic oil filter housing cap. It can crack.
• ⚠️ Battery disconnect is not required for this oil change.

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🔧 Required Tools

You'll need the following tools for this repair:

• 13mm socket
• 3/8-inch drive ratchet
• 24mm socket
• 3/8-inch drive torque wrench
• Oil drain pan, 8-quart minimum
• Funnel
• Clean shop towels
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine oil, 5W-20 synthetic or synthetic blend - Qty: 6 quarts
• Engine oil filter cartridge with O-ring - Qty: 1
• Oil drain plug gasket - Qty: 1

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📋 Before You Begin

• 🅿️ Park your Wrangler on level ground and set the parking brake.
• 🌡️ Run the engine for 2-3 minutes if it is completely cold, then shut it off. Warm oil drains faster.
• 🧰 Open the hood and remove the oil fill cap to help the oil drain smoothly.
• ♻️ Have a sealed container ready for used oil. Dispose of used oil and the filter at a recycling center or parts store that accepts oil.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Position the Drain Pan

• Slide the oil drain pan, 8-quart minimum under the engine oil pan drain plug.
• The oil pan is at the bottom of the engine. The drain plug is the small bolt at the lowest drain point.
• Tip: Oil may shoot outward first.

Step 2: Remove the Oil Drain Plug

• Use a 13mm socket and 3/8-inch drive ratchet to loosen the oil drain plug.
• Finish removing the plug by hand while wearing nitrile gloves.
• Let the oil drain until it slows to an occasional drip.
• Wipe the drain plug area with clean shop towels.

Step 3: Reinstall the Oil Drain Plug

• Install a new oil drain plug gasket on the drain plug if equipped separately.
• Thread the drain plug in by hand first to avoid cross-threading. Cross-threading means the bolt is going in crooked and can damage the oil pan.
• Use the 13mm socket and 3/8-inch drive torque wrench to tighten the drain plug.
• Torque to 27 Nm (20 ft-lbs).

Step 4: Remove the Oil Filter Cap

• Locate the oil filter housing on top of the engine, near the front center of the engine cover area.
• Use a 24mm socket with the 3/8-inch drive ratchet to loosen the black plastic oil filter cap.
• Lift the cap and old filter cartridge straight up slowly.
• Keep the assembly upright to reduce oil drips.

Step 5: Replace the Filter Cartridge and O-Ring

• Pull the old filter cartridge off the cap by hand.
• Use a clean shop towel to wipe old oil from the cap and housing opening.
• Remove the old O-ring from the oil filter cap by hand. The O-ring is the rubber sealing ring that prevents leaks.
• Lightly coat the new O-ring with fresh 5W-20 engine oil.
• Install the new O-ring into the same groove on the cap.
• Push the new engine oil filter cartridge onto the cap until it seats fully.
• Tip: Match the old O-ring location exactly.

Step 6: Reinstall the Oil Filter Cap

• Insert the new filter and cap assembly into the oil filter housing.
• Start the cap threads by hand first.
• Use the 24mm socket and 3/8-inch drive torque wrench to tighten the cap.
• Torque to 25 Nm (18 ft-lbs).
• Do not tighten past the torque spec. The cap is plastic and can crack.

Step 7: Add New Engine Oil

• Place a funnel into the oil fill opening.
• Pour in 5.5 quarts of 5W-20 engine oil first.
• Reinstall the oil fill cap by hand.
• Start the engine and let it idle for 30 seconds while watching for leaks under the engine and around the oil filter housing.
• Shut the engine off and wait 5 minutes so the oil can drain back into the oil pan.

Step 8: Check and Top Off the Oil Level

• Pull out the dipstick, wipe it clean with a clean shop towel, then reinstall it fully.
• Pull it out again and check the oil level.
• Add oil through the funnel in small amounts until the level reaches the safe/full range.
• Total capacity with filter is approximately 6 quarts.
• Reinstall the oil fill cap and dipstick securely.

Step 9: Reset the Oil Change Indicator

• Turn the ignition to ON/RUN without starting the engine.
• Fully press and release the accelerator pedal slowly 3 times within 10 seconds.
• Turn the ignition to OFF.
• Start the engine and confirm the oil change message is cleared.

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✅ After Repair

• ✅ Let the engine idle for 1-2 minutes and inspect for leaks at the drain plug and oil filter housing.
• ✅ Shut the engine off, wait 5 minutes, and recheck the dipstick level.
• ✅ Verify the oil fill cap and dipstick are fully seated.
• ✅ Pour used oil into a sealed container and recycle it properly.
• ✅ Recheck for drips after your first short drive.

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💰 DIY vs Shop Cost

Shop Cost: $85-$140 (parts + labor)

DIY Cost: $45-$75 (parts only)

You Save: $40-$65 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.6 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.