What size is the drain plug on a 2016 Subaru Forester?
The engine oil drain plug on a 2016 Subaru Forester uses M14x1.5 threads and a 14mm hex head, so you’ll need a 14mm socket to remove it.
The 2016 Forester, typically equipped with the 2.5-liter horizontally opposed engine in most markets, follows Subaru’s common specification for the engine oil drain plug. This article focuses on that oil pan drain plug; other drain plugs (such as those for the transmission or transfer case) can differ in size and should be checked in the service manual for your exact market and configuration.
Engine oil drain plug size
Before listing the measurements, note that this section covers the engine oil drain plug used on the 2016 Forester. While sizes can vary by market or trim, the following reflects the common configuration for the US-spec 2.5L model.
- Thread size: M14 x 1.5 (metric)
- Hex head drive: 14 mm
- Typical sealing washer: copper crush washer
In practice, a properly sized 14 mm socket will loosen and tighten the plug, and replacing the copper crush washer at every oil change helps ensure a proper seal.
Summary
For the 2016 Subaru Forester, the engine oil drain plug is typically M14 x 1.5 with a 14 mm hex head, using a copper crush washer. Always verify with your owner's manual or factory service manual for your exact market and engine variant to confirm the specification.
