The engine oil pan drain plug on a 2008 Acura TL uses a 14‑mm hex‑head plug.
For context, this article explains the plug size, how to identify it, and practical steps for performing an oil change, including notes on model variations and how to distinguish engine oil plugs from other drain plugs on the vehicle.
Engine oil drain plug: size and identification
On the 2008 TL, the oil drain plug located on the underside of the engine oil pan is a 14‑mm hex‑headed bolt. It typically requires a 14 mm socket (often a deep socket for clearance) to remove and reinstall. When replacing the plug, it’s standard to use a new washer seal to ensure a proper seal and prevent leaks.
How to change the engine oil drain plug safely
To perform an oil change, use the right tools and follow a careful sequence to minimize mess and ensure a proper seal.
- Warm up the engine slightly, then park on a level surface and engage the parking brake.
- Place a drain pan under the oil pan and loosen the drain plug with a 14 mm socket.
- Allow the old oil to drain completely, then remove the plug and old washer (if present) and inspect the threads for damage.
- Install the drain plug with a new washer, tightening to a snug, but not excessive, torque.
- Proceed with removing and replacing the oil filter, then refill with the manufacturer‑recommended oil grade and amount.
- Check for leaks around the drain plug after adding oil and run the engine briefly to circulate the new oil, then recheck levels and top off if needed.
After completing the oil drain plug work, confirm there are no leaks at the plug and ensure the oil level is correct. If you’re unsure about torque, refer to the owner’s manual or service guide for your specific VIN and model variant.
Other drains to keep straight
Be aware that the 2008 Acura TL has other drain plugs (for components like the transmission and differential) that use different sizes and tools. These are separate from the engine oil drain plug and should not be confused during maintenance. Always consult the service manual for the exact bolt sizes and torque specs for your vehicle’s exact configuration.
Summary
For a 2008 Acura TL, the engine oil pan drain plug is consistently a 14‑mm hex‑head bolt. Use a 14 mm socket, replace the washer, and follow standard oil‑change steps. When in doubt, consult the owner’s manual or service documentation specific to your VIN to verify any model‑year or variant differences.