What size is the oil drain plug on a 2008 Honda Odyssey?
The oil drain plug on a 2008 Honda Odyssey requires a 14 mm socket to loosen and tighten the drain bolt. This is the standard size for the oil pan drain plug on the 3.5-liter V6 used in that year.
Understanding the plug size helps ensure a smooth oil-change process. This article explains the correct size, where to locate the plug on the Odyssey, and practical steps for safely draining and replacing engine oil.
The 14 mm plug: what you need to know
The drain plug for the 2008 Odyssey is a standard hex-head bolt designed for a 14 mm socket. Using the correct socket helps prevent rounding the head and ensures a proper seal when reinstalling the plug. Many owners also replace the copper crush washer that sits with the drain plug to prevent leaks.
Where to locate it and what to expect
The oil drain plug sits on the bottom of the engine oil pan. Access it from underneath the vehicle with the car safely supported on ramps or jack stands. When performing an oil change, you’ll drain the old oil through this plug before refilling with fresh oil.
Tools and materials you'll need
Before you begin the oil change, assemble the tools and materials that make the process smoother and reduce the risk of damage:
- 14 mm socket or wrench
- Drain pan to collect used oil
- Rags or paper towels for cleanup
- New oil filter (if you're replacing it) and fresh engine oil
- Copper or aluminum crush washer for the drain plug (often recommended to replace)
- Car ramps or jack stands for safe under-vehicle access
With the right tools, you can proceed with a clean and safe oil change, ensuring the drain plug seals properly after drainage. For vehicle-specific torque details, consult the owner’s manual or service manual.
Step-by-step: how to change the oil and drain plug
Here is a concise, general sequence for an oil change on a 2008 Odyssey. If you have the official service manual, follow its torque and procedure exactly.
- Warm up the engine briefly to help the oil drain, then turn off the engine.
- Raise the vehicle securely and position it on ramps or jack stands.
- Place the drain pan beneath the oil pan drain plug.
- Using a 14 mm socket, loosen the drain plug and allow the old oil to drain completely.
- Remove the drain plug, wipe it clean, inspect the washer, and replace the copper washer if required.
- Reinstall the drain plug and snug it by hand first, then tighten with the 14 mm socket until it is snug with slight resistance. Do not overtighten.
- Lower the vehicle and proceed to replace the oil filter and add the proper amount and type of oil as per the owner's manual.
After you finish, dispose of the used oil and filter properly according to local guidelines. For precise torque specifications, refer to the service manual for the 2008 Odyssey.
Final considerations
In practice, a 14 mm socket is the standard tool for the oil drain plug on the 2008 Honda Odyssey. If you’re uncertain about torque or washer type, consult the owner’s manual or a repair guide for exact specifications applicable to your VIN and engine. Always ensure the vehicle is securely supported before working beneath it.
Summary
The oil drain plug on a 2008 Honda Odyssey is a 14 mm hex-head plug, requiring a 14 mm socket to loosen and tighten. Prepare the right tools, secure the vehicle, and replace the washer when reinstalling. For precise torque values and any year-specific variations, refer to the official Honda manual or a trusted repair guide.
