🔧 Civic - Manual Transmission Fluid Change

Changing your Civic’s manual transmission fluid helps protect the gears and bearings and keeps shifting smooth. This job is mostly drain-and-fill, but the key is opening the fill plug first so you don’t get stuck with an empty transmission you can’t refill.

Difficulty Level: Beginner | Estimated Time: 0.8-1.5 hours

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⚠️ Safety & Precautions

• 🧯 Work on level ground and support the car with jack stands (never the jack alone).
• 🔥 Transmission fluid can be hot—let the car cool 20-30 minutes if you just drove it.
• 🧤 Wear gloves and safety glasses; fluid can irritate skin and eyes.
• 🔩 Always remove the fill plug before draining (prevents being unable to refill).

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 2-ton minimum)
• Jack stands (pair, rated 2-ton minimum)
• Wheel chocks (pair)
• 3/8" drive ratchet
• 3/8" drive extension (6")
• Torque wrench (10-80 ft-lbs range)
• Drain pan (at least 6-quart)
• Fluid transfer pump (hand pump) (specialty)
• Shop rags
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Manual transmission fluid (Honda MTF) - Qty: 2 quarts
• Transmission drain plug crush washer - Qty: 1
• Transmission fill plug crush washer - Qty: 1

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📋 Before You Begin

• Park on a level surface, put the shifter in Neutral, set the parking brake, and place wheel chocks behind the rear wheels.
• Gather your fluid transfer pump (this is a small hand pump that pushes fluid from the bottle into the transmission).
• Lightly warm the drivetrain with a 5-10 minute drive for better draining, then shut the engine off.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise and secure the front of the car

• Use a floor jack to lift the front at the proper jacking point.
• Set the car down onto jack stands and confirm it’s stable before you get underneath.

Step 2: Locate the fill plug and drain plug

• Slide your drain pan under the transmission.
• The plugs use a 3/8" square drive—your 3/8" drive ratchet fits directly into the plug (no socket needed).
• Fill plug first—always.

Step 3: Remove the fill plug (first)

• Use a 3/8" drive ratchet (and 3/8" extension (6") if needed) to loosen and remove the fill plug.
• Wipe the area with shop rags so dirt can’t fall into the transmission.

Step 4: Drain the old transmission fluid

• Use a 3/8" drive ratchet to loosen and remove the drain plug.
• Let it drain until it slows to an occasional drip (usually 5-10 minutes).

Step 5: Reinstall the drain plug with a new crush washer

• Install a new drain plug crush washer on the drain plug.
• Thread the drain plug in by hand first to avoid cross-threading.
• Use a torque wrench to tighten the drain plug: Torque to 39 Nm (29 ft-lbs).

Step 6: Fill with new manual transmission fluid

• Insert the hose from the fluid transfer pump (hand pump) (specialty) into the fill hole.
• Pump in Honda MTF until fluid starts to dribble out of the fill opening (that means it’s at the correct level on a level car).
• Typical amount is about 1.9 US quarts (about 1.8 L), but always use the “dribble out” level method as the final check.

Step 7: Reinstall the fill plug with a new crush washer

• Install a new fill plug crush washer on the fill plug.
• Thread the fill plug in by hand first.
• Use a torque wrench to tighten the fill plug: Torque to 39 Nm (29 ft-lbs).
• Wipe any spilled fluid using shop rags.

Step 8: Lower the car

• Use the floor jack to lift slightly, remove the jack stands, then lower the car to the ground.
• Remove the wheel chocks.

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✅ After Repair

• Start the engine and, with the clutch pressed, gently shift through all gears with the car parked.
• Take a short 5-10 minute test drive and confirm shifting feels normal (no grinding or new noises).
• Park and look underneath for any seepage at the drain and fill plugs.
• Dispose of old fluid responsibly at an oil/fluid recycling location.

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💰 DIY vs Shop Cost

Shop Cost: $150-$300 (parts + labor)

DIY Cost: $25-$60 (parts only)

You Save: $125-$240 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.8-1.2 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.