Parts for your 2016 Subaru Impreza-Sump plug washers

Sump Plug Washers for the 2016 Subaru Impreza: What You Need to Know

When it comes to the 2016 Subaru Impreza, one common question that pops up is whether sump plug washers are even used, and if so, what their purpose is. After checking through various technical sources and manufacturer specifications, it turns out that the 2016 Subaru Impreza does indeed use sump plug washers. These small but important components play a vital role in maintaining your engine's health and preventing leaks.

Sump plug washers are typically small rings made from materials like copper, aluminium, or sometimes a crushable composite. Their main function is to ensure a tight seal between the sump plug and the oil pan. The oil sump plug, also known as the drain plug, is what you remove to drain the engine oil during servicing. Without a proper seal, oil can leak out causing loss of lubrication, potential engine damage, and a messy driveway.

For the 2016 Subaru Impreza, the manufacturer recommends using a crush washer made usually of aluminium or copper. This washer sits between the sump plug's threaded head and the sump itself, providing a crucial barrier against oil leaks. When tightened properly, the washer crushes just enough to fill any gaps or imperfections on the metal surfaces, creating a seal that keeps the oil safely inside.

It might seem like a small thing but replacing your sump plug washer every time you change the oil is a sound practice. Over time, these washers deform and lose their ability to seal properly. Re-using an old washer can result in leaks and could even lead to the sump plug loosening. While you might get away with using the same washer once or twice, the best move is to swap it out regularly to ensure a fresh, reliable seal.

When servicing the 2016 Subaru Impreza, here are a few points to keep in mind about sump plug washers:

• Always inspect the washer when removing the sump plug. If it looks crushed, flattened, or shows signs of damage, it's time for a new one.
• Use the correct washer size and type specified by Subaru. This ensures it fits perfectly and functions as intended.
• Hand-tighten the sump plug first, then use a torque wrench to tighten it to the manufacturer's recommended torque setting. Over-tightening can distort the washer or damage the sump threads.
• Do not reuse old washers indefinitely. Despite their small size, they play a big role maintaining an oil-tight seal.

Replacing the sump plug washer during every oil change keeps everything running smoothly. Plus, it takes very little extra effort or cost during servicing. Ignoring it might save a minute or two now but can lead to annoying oil leaks later that are messy and potentially costly to fix.

In case you're planning to do your own servicing on a 2016 Subaru Impreza, make sure you have the correct sump plug washer on hand. Subaru dealerships and many auto parts stores stock the right washers designed for this model. It's always best to go with genuine or high-quality parts to avoid any fitment issues or premature leaks. Avoid generic washers that might be too thick, thin or made from inferior materials, as these could cause sealing problems.

The bottom line is that sump plug washers are a small, inexpensive part but a crucial one when maintaining the Impreza's engine. During an oil change, swapping the washer out is a smart, preventative step to keep the oil system in top shape. Maintaining a good seal prevents oil leaks, saves you from messy clean-ups and costly oil top-ups, and ultimately protects your engine's longevity.

So next time the 2016 Subaru Impreza is up for an oil service, don't overlook those tiny sump plug washers. They're working hard behind the scenes to keep everything sealed up tight and your engine running smooth. Taking a moment to replace the washer keeps your vehicle in excellent shape without much hassle at all.