🔧 Outback - Engine Oil & Oil Filter Replacement

This service drains the old engine oil, replaces the oil filter, and refills your Outback with fresh oil. Regular oil changes protect the 3.6L flat-six engine from wear, sludge, and timing-chain-related oil contamination.

Difficulty Level: Beginner | Estimated Time: 45-75 minutes

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⚠️ Safety & Precautions

• ⚠️ Work on a cool-to-warm engine, not a hot one. Hot oil can burn skin.
• ⚠️ Park on level ground so the oil drains correctly and the final oil level reads accurately.
• ⚠️ Always support the vehicle with jack stands if you raise it. Never rely on a floor jack alone.
• ⚠️ Wear safety glasses and nitrile gloves to protect your eyes and skin from used oil.
• ⚠️ Do not over-tighten the drain plug or oil filter. The oil pan threads can be damaged.
• ⚠️ Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• 17mm socket
• 3/8-inch ratchet
• Torque wrench rated 10-80 ft-lbs
• Oil filter wrench 65mm 14-flute
• Drain pan 8-quart minimum
• Funnel
• Floor jack rated 2-ton minimum
• Jack stands rated 2-ton minimum
• Wheel chocks
• Nitrile gloves
• Safety glasses
• Shop towels

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine oil 5W-30 synthetic - Qty: 6.9 quarts
• Engine oil filter - Qty: 1
• Oil drain plug crush washer - Qty: 1

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📋 Before You Begin

• 🚗 Park your Outback on level ground and set the parking brake.
• 🧱 Place wheel chocks behind the rear wheels before lifting the front.
• 🌡️ Let the engine run for 2-3 minutes, then shut it off. Warm oil drains faster, but should not be burning hot.
• 🔧 If you raise the front of the vehicle, use a floor jack and support it with jack stands at the front side support points.
• ♻️ Have a sealed container ready for used oil. Used oil must be recycled properly.
• 📘 The 3.6L flat-six engine uses a spin-on oil filter. A spin-on filter is the metal can-style filter that screws onto the engine.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise and Secure the Front

• Use the floor jack rated 2-ton minimum to lift the front of your Outback only high enough to access the oil drain plug and oil filter.
• Place jack stands rated 2-ton minimum under the front support points.
• Gently lower the vehicle onto the jack stands and lightly shake the vehicle to confirm it is stable.
• Never work under only a jack.

Step 2: Open the Oil Fill Cap

• Open the hood.
• Use your hand to remove the engine oil fill cap on top of the engine.
• Pull the dipstick up slightly. The dipstick is the small handle used to check engine oil level.
• This helps air enter the engine so the old oil drains more smoothly.

Step 3: Position the Drain Pan

• Put on safety glasses and nitrile gloves.
• Slide the drain pan 8-quart minimum under the engine oil drain plug.
• The drain plug is on the bottom of the engine oil pan.
• Keep the pan slightly behind the plug because oil may shoot outward at first.

Step 4: Remove the Oil Drain Plug

• Use a 17mm socket and 3/8-inch ratchet to loosen the oil drain plug counterclockwise.
• Finish removing the plug carefully by hand while pressing inward slightly, then pull it away quickly.
• Let the oil drain until it slows to an occasional drip.
• Use shop towels to clean oil from around the drain hole.
• Keep fingers clear of hot oil.

Step 5: Replace the Crush Washer

• Remove the old crush washer from the drain plug by hand.
• A crush washer is a soft sealing washer that compresses once to stop leaks.
• Install the new oil drain plug crush washer onto the drain plug.
• Wipe the drain plug clean with shop towels.

Step 6: Reinstall the Oil Drain Plug

• Thread the drain plug into the oil pan by hand first. This prevents cross-threading, which means damaging the threads by starting the bolt crooked.
• Use the 17mm socket and torque wrench rated 10-80 ft-lbs to tighten the drain plug.
• Torque to 45 Nm (33 ft-lbs).
• Wipe the area clean with shop towels so leaks are easier to spot later.

Step 7: Remove the Old Oil Filter

• Move the drain pan 8-quart minimum under the oil filter area.
• Use the oil filter wrench 65mm 14-flute and 3/8-inch ratchet to loosen the oil filter counterclockwise.
• Once loose, spin the filter off by hand.
• Keep the open end of the filter facing upward as you remove it to reduce spills.
• Check that the old rubber gasket came off with the filter. The gasket is the rubber sealing ring on the filter.
• Never double-gasket an oil filter.

Step 8: Install the New Oil Filter

• Dip a gloved finger into fresh engine oil 5W-30 synthetic.
• Lightly coat the rubber gasket on the new engine oil filter.
• Thread the new oil filter onto the engine by hand until the gasket touches the mounting surface.
• Tighten the oil filter by hand an additional 3/4 turn after gasket contact.
• If using the oil filter wrench 65mm 14-flute and torque wrench rated 10-80 ft-lbs, tighten carefully to Torque to 14 Nm (10 ft-lbs).
• Hand-tight is usually enough.

Step 9: Add Fresh Engine Oil

• Place the funnel into the engine oil fill opening.
• Pour in about 6.3 quarts of engine oil 5W-30 synthetic first.
• Reinstall the oil fill cap by hand.
• Push the dipstick fully back into place.
• The full oil capacity with filter is approximately 6.9 quarts, but adding slightly less first prevents overfilling.

Step 10: Start and Check for Leaks

• Make sure no tools are under the vehicle.
• Start the engine and let it idle for 30-60 seconds.
• Use safety glasses and look under the vehicle for leaks at the drain plug and oil filter.
• Shut the engine off immediately if you see a steady drip or spray.
• Use shop towels to wipe and recheck if needed.

Step 11: Lower the Vehicle

• Use the floor jack rated 2-ton minimum to lift the front slightly off the jack stands.
• Remove the jack stands rated 2-ton minimum.
• Lower the vehicle slowly onto level ground.
• Remove the wheel chocks after the vehicle is fully on the ground.

Step 12: Set Final Oil Level

• Wait 5 minutes so oil can drain back into the oil pan.
• Pull the dipstick out and wipe it clean with shop towels.
• Reinsert the dipstick fully, then pull it out again to read the level.
• Add engine oil 5W-30 synthetic through the funnel in small amounts until the oil level reaches the full mark.
• Do not fill above the full mark.
• Reinstall the oil fill cap and dipstick securely by hand.

Step 13: Reset the Maintenance Reminder

• Turn the ignition to ON without starting the engine.
• Use the steering wheel information controls to access the vehicle settings display.
• Select Maintenance, then choose Engine Oil or Oil Filter if shown.
• Reset the interval after the oil change is complete.
• If your display does not show a reset option, record the mileage and use the trip meter or service sticker method.

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✅ After Repair

• ✅ Drive your Outback for 5-10 minutes, then park on level ground and recheck the oil level after 5 minutes.
• ✅ Inspect the drain plug and oil filter again for leaks.
• ✅ Recheck the oil level the next morning before starting the engine.
• ♻️ Pour used oil into a sealed container and recycle it with the old filter at a proper oil recycling location.
• 📝 Record the mileage and date of the oil change.

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💰 DIY vs Shop Cost

Shop Cost: $90-$160 (parts + labor)

DIY Cost: $45-$85 (parts only)

You Save: $45-$75 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-0.8 hours.

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🎯 Ready to get started?

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