Parts for your 2020 Mitsubishi Outlander-Sump plug washers

Sump Plug Washers on the 2020 Mitsubishi Outlander: What You Need to Know

When it comes to maintaining a 2020 Mitsubishi Outlander, one little component that often flies under the radar but plays an important role is the sump plug washer. If you're wondering whether your Outlander uses sump plug washers and why they matter, you're in the right place. Here's a detailed look at what sump plug washers do, why they are fitted to the 2020 Mitsubishi Outlander, and why paying attention to them during servicing is a smart move.

The sump plug, also commonly called the drain plug, is the bolt that secures the oil pan or sump at the bottom of your vehicle's engine. It's where oil is drained out during an oil change. Now, the sump plug washer sits between the drain plug and the sump, acting as a gasket or seal to prevent oil leaks. On the 2020 Mitsubishi Outlander, sump plug washers are indeed used, typically made from copper or aluminium. These materials are chosen because they can deform slightly to create a tight seal when the sump plug is tightened down.

So why use a sump plug washer? Essentially, it stops oil from seeping out around the drain plug. Engines run hot and oil pressure and temperature fluctuations can cause tiny gaps or imperfections on the metal surfaces. The washer fills in these gaps, keeping oil contained and your engine lubricated properly. Without a washer, there is a risk of oil leakage which can lead to low oil levels, engine damage, or messy drips under your car.

There are a few reasons the sump plug washer is critical:

• Prevents oil leaks from around the drain plug
• Creates a tight, secure seal even under pressure and heat
• Protects the sump and plug threads from damage by reducing metal-on-metal contact

Over time, the washer can get crushed or damaged, losing its ability to properly seal. That's why many mechanics advise replacing the sump plug washer every time an oil change is done. It is a cost-effective way to maintain the health of the sump plug seal and reduce the risk of leaks.

In fact, Mitsubishi's own service recommendations for the 2020 Outlander include replacing the drain plug washer each time the engine oil is drained and refilled. Doing so helps keep the sump plug properly sealed, preventing any issues that might arise from leaks. Since sump plug washers are inexpensive and usually readily available, this is a small step that can save headaches down the line.

When replacing a sump plug washer on the Outlander, it is important to note a few handy tips:

1. Always use an OEM (original equipment manufacturer) washer or one that meets Mitsubishi's specifications. This ensures the material, size, and thickness are correct for your vehicle.
2. Make sure the sump plug threads and sealing surfaces are clean and free of debris before reinstalling the washer.
3. Tighten the sump plug to the torque specification provided in the service manual (usually measured in Newton-meters). Over-tightening can crush the washer excessively or damage the sump, while under-tightening risks leaks.
4. Do not reuse old washers as they can be deformed and won't seal properly.

Maintaining the sump plug washer is a simple but essential part of regular servicing on the 2020 Mitsubishi Outlander. It is one of those small parts that keeps your oil system running smoothly and quietly. Skipping this step or reusing old washers increases the chance of oil leaks, which can lead to more expensive repairs and inconvenience later on.

If a driver has a habit of doing DIY oil changes, keeping a few sump plug washers on hand is a good idea. They are inexpensive to buy and easy to fit. For those who have their 2020 Outlander serviced by professionals, it's worthwhile to confirm that the mechanic replaces the sump plug washer as part of the oil change service. Most reputable workshops are aware of this practice, but it's always good to double-check.

In summary, the sump plug washer on the 2020 Mitsubishi Outlander is a small but vital component that seals the sump drain plug and prevents oil leaks. Using a proper washer and replacing it regularly during servicing keeps the engine oil contained and the Outlander running smoothly for many kilometres on the road.