Sometimes the simplest parts make the biggest difference. This Subaru OEM oil drain plug crush gasket fit perfectly and sealed exactly as it should. No guessing on thickness, no weird fitment issues — just torque it to spec and you’re done.
I always prefer OEM for sealing components, and this is a great example why. After the oil change, not a single drip or seep. It’s inexpensive insurance for avoiding leaks and protecting your engine.
If you’re already under the car doing an oil change, there’s no reason not to replace the crush washer with the proper OEM part. Highly recommend.