The oil drain plug most commonly uses a 14 mm hex socket, with threads typically M14 x 1.5, and a drain torque around 22–25 ft-lbs (30–34 Nm). Always confirm with the owner’s manual or the plug on your specific engine variant.
Overview of plug size across the 2018 Accord range
The 2018 Honda Accord offered two turbocharged engines (1.5L and 2.0L). In both cases, the drain plug head is typically 14 mm, and the thread is generally M14 x 1.5. Exact torque can vary slightly by engine design and sump configuration, so checking the service manual or inspecting the plug itself is the safest approach.
Engine variants and compatibility
In practice, most 2018 Accord models share the same 14 mm drain plug head. Some variants or production runs may specify a slightly different torque or require a different washer, so verify the specification for your VIN in Honda’s service information if you’re unsure.
Before you start the oil-change process, gather the right tools and know what you’re checking for—this helps prevent leaks and cross-threading.
Before you start, here is a quick checklist of tools and parts you’ll typically need when removing and reinstalling the oil drain plug.
- 14 mm socket or wrench for the drain plug
- Ratchet and, if needed, an extension bar
- Torque wrench to reach the recommended specification
- New washer or gasket if your plug requires one
- Oil drain pan to catch old oil
Having the right tools and confirming the exact plug size and torque helps ensure a clean drain and a proper seal when you finish the oil change.
Summary
For most 2018 Honda Accord models, the oil drain plug is a 14 mm hex head with M14 x 1.5 threads, tightened to about 30 Nm (22 ft-lbs). Always verify the exact specification in your owner's manual or service data for your engine variant to account for any differences.