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What size is a Subaru Forester oil drain plug?

The oil drain plug size for a Subaru Forester is typically 17mm. This is the standard size used for the oil drain plug on most Subaru Forester models, allowing for easy oil changes and maintenance.


Understanding the Oil Drain Plug Size


The oil drain plug is a crucial component in the oil change process for a Subaru Forester. It is responsible for allowing the old oil to drain from the engine, making way for fresh oil to be added. The size of the oil drain plug, measured in millimeters (mm), is an important factor to consider when performing an oil change or any other maintenance that requires accessing the oil pan.


Why the 17mm Size Matters



  • The 17mm size is the most common oil drain plug size used in Subaru Forester models, making it the standard size for this vehicle.

  • Using the correct 17mm size oil drain plug ensures a secure and leak-free connection, preventing oil from escaping the engine during an oil change.

  • Attempting to use the wrong size oil drain plug can lead to stripping the threads in the oil pan, causing costly repairs.

  • Knowing the 17mm oil drain plug size ahead of time allows you to have the right tools and replacement parts on hand before starting an oil change.


Properly maintaining your Subaru Forester's oil system is crucial for the long-term health and performance of the vehicle. Ensuring you have the correct 17mm oil drain plug size is an important step in this process.

What size is the drain plug on a Subaru Forester?


16X17
Plug 16X17 - 807016210 - Genuine Subaru Part.



What size is the oil drain plug on a 2019 Subaru?


Subaru drain plugs are either 17mm or 14mm. If you were able to change the oil in your 15, the 19 should be no issue/almost identical.



What size socket for Subaru oil change?


Make sure you get the the box wrench or socket - it's a 17 mm or 11/16" size.



What size socket is a Subaru?


To remove and install Subaru lug nuts, you'll need a 19mm socket. This fits the standard 12mm x 1.25 nuts. So the common socket sizes are: 12×1.25mm lug nuts: 19mm socket.



What size socket fits an oil drain plug?


3/8-inch
Place a 3/8-inch (0.9 centimeters) socket in the socket wrench, fit it over the drain plug's nut and turn it counterclockwise. The oil drain plug should open easily, draining the used oil from the engine. Make sure to place a bucket and some newspaper under the car's engine to catch all the draining oil.



How to find out oil drain plug size?


Measure Diameter
Measure the width of the plug at the widest part of the threads. If your plug measures 12mm you will need to start looking at plugs in the size range of “M12 x 1.25 to M12 x 1.75″. The “M12” refers to the diameter you measure from the widest part of the threads on your OEM sump plug.



Can I use 5w30 instead of 0w20 in Subaru Forester?


If you drive a Subaru Forester with a non-turbo engine, it requires 0W-20. If you drive a model with a turbo engine, you'll need 5W-30.



What socket do you need for oil change?


Ratchet and Socket Set
Get a set that includes some metric and SAE sizes, and if you're starting out, a 3/8” drive should do just fine. Ratchets and sockets also come in 1/4, 1/2″, 3/4″, and 1” drives.



Where is the drain plug on a Forester?


Oil change Subaru Forester 2009 - 2017 | Haynes Manuals

  1. The oil drain plug is located on the base of the engine. It is accessed underneath the car.
  2. Don't forget to place a suitably sized drain pan beneath.
  3. Using a wrench or socket, carefully remove the drain plug and fully drain the oil.



What size wrench for Subaru Forester oil plug?


Unscrew the oil drain plug with the 17mm wrench. This is located under the front of the car in the gap in the bottom panel.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.