🔧 Outback - Engine Oil & Oil Filter Change

This repair replaces the old engine oil and oil filter in your Outback’s 2.5L flat-4 engine. Fresh oil protects the engine from wear, helps cooling, and keeps the timing and valve components properly lubricated.

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

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⚠️ Safety & Precautions

• ⚠️ Work on a level surface so the oil drains correctly and the vehicle stays stable.
• ⚠️ Let the engine cool until warm, not hot. Hot oil can burn skin.
• ⚠️ Always support the Outback with jack stands if lifting it. Never rely on a jack alone.
• ⚠️ Wear safety glasses and nitrile gloves to protect your eyes and skin from used oil.
• ⚠️ Used engine oil is toxic. Keep it off your skin and recycle it properly.
• ⚠️ Battery disconnect is not required for this oil change.

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🔧 Required Tools

You'll need the following tools for this repair:

• 17mm socket
• 3/8-inch drive ratchet
• 3/8-inch drive torque wrench
• 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 0W-20 full synthetic - Qty: 4.8 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 to stop the vehicle from rolling.
• Run the engine for 2-3 minutes, then shut it off. Warm oil drains faster.
• If lifting the front, use a floor jack and support the vehicle with jack stands at the proper front support points.
• A crush washer is a soft sealing washer that compresses once to prevent leaks. Replace it every oil change.
• A torque wrench tightens bolts to a measured amount so they are not too loose or too tight.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Hood and Remove the Oil Fill Cap

• Use your hand to open the hood and secure it with the hood prop.
• Use your hand to remove the engine oil fill cap on top of the engine.
• Pull the dipstick up slightly by hand. This helps air enter so the oil drains smoothly.
• Tip: Set the cap where you cannot forget it.

Step 2: Raise and Support the Front of the Vehicle

• Use wheel chocks behind the rear wheels.
• Use the floor jack rated 2-ton minimum to raise the front of the Outback high enough to access the oil drain plug.
• Use jack stands rated 2-ton minimum to support both sides securely.
• Gently shake the vehicle by hand before going underneath. It should not move.

Step 3: Position the Drain Pan

• Put on nitrile gloves and safety glasses.
• Use the drain pan 8-quart minimum and place it under the engine oil drain plug.
• The drain plug is on the bottom of the engine oil pan.
• Move the pan slightly toward the rear because oil may shoot outward at first.

Step 4: Remove the Oil Drain Plug

• Use a 17mm socket and 3/8-inch drive ratchet to loosen the oil drain plug counterclockwise.
• Finish removing the plug by hand while pushing inward slightly. This helps avoid dropping it into the drain pan.
• Let the old oil drain until it slows to an occasional drip.
• Use shop towels to wipe oil from the drain plug area.

Step 5: Replace the Crush Washer and Reinstall the Drain Plug

• Use your hand to remove the old crush washer from the drain plug.
• Install the new oil drain plug crush washer by hand.
• Thread the drain plug into the oil pan by hand first. This prevents cross-threading, which means damaging the threads by starting the plug crooked.
• Use the 17mm socket and 3/8-inch drive torque wrench to tighten the drain plug to Torque to 44 Nm (32.5 ft-lbs).
• Tip: Start all threads by hand.

Step 6: Remove the Old Oil Filter

• Move the drain pan under the oil filter area.
• Use the 65mm 14-flute oil filter wrench and 3/8-inch drive ratchet to loosen the oil filter counterclockwise.
• Once loose, use your hand to spin the oil filter off slowly.
• Keep the open end upward as you remove it to reduce spills.
• Use shop towels to wipe the filter mounting surface clean.
• Make sure the old rubber gasket came off with the old filter. A gasket is the rubber sealing ring on the filter.

Step 7: Install the New Oil Filter

• Use your gloved finger to apply a thin film of fresh 0W-20 oil to the new oil filter gasket.
• Use your hand to thread the new oil filter onto the engine until the gasket first touches the mounting surface.
• Use your hand to tighten the filter about 3/4 turn more after gasket contact.
• If using the torque wrench with the 65mm 14-flute oil filter wrench, tighten to Torque to 14 Nm (10 ft-lbs).
• Tip: Do not overtighten the filter.

Step 8: Lower the Vehicle

• Use the floor jack rated 2-ton minimum to raise the front slightly off the jack stands.
• Remove the jack stands by hand.
• Use the floor jack to lower the Outback slowly onto level ground.

Step 9: Add New Engine Oil

• Use a funnel in the oil fill opening.
• Pour in about 4.5 quarts of 0W-20 full synthetic engine oil first.
• Use shop towels to wipe spills right away.
• Reinstall the oil fill cap by hand.

Step 10: Start the Engine and Check for Leaks

• Start the engine and let it idle for 30-60 seconds.
• Use a flashlight if needed and look under the engine for leaks at the drain plug and oil filter.
• Shut the engine off and wait 5 minutes so oil drains back into the pan.

Step 11: Check and Set the Final Oil Level

• Use your hand to pull the dipstick out.
• Use shop towels to wipe the dipstick clean.
• Reinsert the dipstick fully, then pull it out again to read the oil level.
• Add small amounts of 0W-20 oil through the funnel until the level is near the full mark.
• Total refill is typically about 4.8 quarts with filter, but always use the dipstick as the final check.

Step 12: Reset the Maintenance Reminder

• Use the steering wheel controls to access the center display settings if your Outback has the maintenance reminder enabled.
• Select Maintenance > Engine Oil > Reset if that menu is present.
• If your display does not show this menu, record the mileage manually and place a reminder sticker in the windshield area.

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✅ After Repair

• ✅ Recheck the oil level after the first short drive and top off only if needed.
• ✅ Look under the vehicle again for any fresh oil drips.
• ✅ Recycle the used oil and oil filter at an approved recycling center or auto parts store.
• ✅ For normal service, repeat oil changes at the Subaru-recommended interval for your driving conditions.
• ✅ If the oil pressure warning light stays on after startup, shut the engine off immediately and recheck the oil level and filter installation.

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💰 DIY vs Shop Cost

Shop Cost: $90-$150 (parts + labor)

DIY Cost: $40-$75 (parts only)

You Save: $50-$75 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.4-0.7 hours.

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