How to Change Honda Accord Manual Transmission Fluid 9th Gen
If you drive a manual‑transmission Honda Accord—especially the 9th generation (2013)—changing the transmission fluid is one of the most important maintenance tasks you can do to keep the gearbox shifting smoothly. Honda recommends doing this roughly every 30,000 miles. I neglected that for some time but now I notice smoother changes whenever I do this now.
This guide walks you through the full process I used on my own 2013 Accord. The same principles apply to other generations as well although check with your owner’s manual for the exact amount of fluid to use. As always, this is simply my experience—follow at your own risk and use proper safety precautions.
Before You Begin: The Most Important Rule
Always make sure you can loosen the fill plug before you drain the transmission.
If you drain the fluid and then discover the fill plug is seized, you’re stuck with an empty transmission and no way to refill it. That’s a bad day.
So the very first step is confirming that the fill plug will come off
Tools You’ll Need
- A short 3/8″ extension for high torque
- Breaker bar (½” drive with adapter to 3/8″)
- Long‑neck transmission funnel
- Drain pan
- Honda Genuine Manual Transmission Fluid (2 quarts unless yours requires more)
- Rags or shop towels
Step 1: Locate and Loosen the Fill Plug
On the 2013 Accord, the fill plug is tucked between the battery and the air filter box. You’ll see a square‑drive plug that accepts a 3/8″ extension directly.
Some people remove the battery for easier access, but I found it unnecessary. Just be careful not to touch the battery terminals with your tools!
Use your extensions and breaker bar to gently work the plug loose. Sometimes tightening slightly before loosening helps break it free. Take your time—these plugs can be tight, and you don’t want to snap an extension.
Once you confirm it will come off, leave it in place for now.
Step 2: Locate the Drain Plug Under the Car
Jack up the car safely and use secure jack stands on solid ground. Look underneath from the left side of the car by the front wheel. The drain plug is easy to spot once you know where to look.
Use the same 3/8″ drive setup to loosen it. In my case, it came off easily because I had done this before, but expect it to be tight if it’s your first time.
Place your drain pan underneath and remove the plug fully to let the fluid drain.
Step 3: Inspect the Drain Plug
The plug uses a flat washer—not a crush washer—so as long as it’s in good condition, you can reuse it. Clean the plug and reinstall it once the fluid has fully drained. Tighten it firmly, but don’t overdo it.
Step 4: Add New Transmission Fluid
Insert your long‑neck transmission funnel into the fill hole. This type of funnel is designed to seat securely so you can pour without fighting gravity.
Add two quarts of Honda Genuine Manual Transmission Fluid. This is one job where I don’t recommend experimenting with other brands—Honda’s fluid is formulated specifically for their manual gearboxes.
Step 5: Reinstall the Fill Plug
Thread the plug in by hand first to avoid cross‑threading. Then tighten it securely with your ratchet. Again, no need to go crazy—remember, you’ll be doing this again in about 30,000 miles.
Final Thoughts
Changing the manual transmission fluid on a 9th‑gen Honda Accord is no harder than doing an engine oil change. The biggest challenge is accessing the fill plug and breaking it loose safely. Once that’s done, the rest is straightforward.
Regular fluid changes help:
- Improve shift quality
- Extend transmission life
- Prevent premature wear
- Keep your Accord feeling like new
If you found this guide helpful, be sure to check out my other car‑related DIY videos, including headlight restoration, blower motor repair, manual transmission service, and more.