Parts for your 2013 Mitsubishi Lancer-Sump plug washers

Sump Plug Washers and Their Role on a 2013 Mitsubishi Lancer

When it comes to a 2013 Mitsubishi Lancer and its maintenance, one component that often gets overlooked is the sump plug washer. This small but essential part plays a key role in keeping your engine oil where it belongs, and understanding its function can help make servicing your Lancer a smoother experience.

The sump plug, sometimes called the oil drain plug, is the bolt that seals the oil pan at the bottom of the engine. When you get an oil change, this plug is removed to allow old oil to drain out before adding fresh oil. The sump plug washer is a tiny ring, usually made from a soft metal like copper, aluminium, or sometimes a composite material. It sits between the sump plug and the oil pan flange to create a tight, leak-proof seal.

The reason this washer is so important is that without it, even a tight sump plug bolt can allow tiny gaps where oil can start to leak. Oil leaks are no good for your car. They can cause a messy garage floor, and more importantly, lead to low oil levels, which can damage your engine over time. The washer compresses slightly as you tighten the plug, filling in any minor imperfections between the plug and oil pan surface to ensure that no oil can escape.

For the 2013 Mitsubishi Lancer, sump plug washers are definitely part of the setup. Technical sources and Mitsubishi parts catalogues confirm that a crush washer or sealing washer is fitted each time the sump plug is installed. Many mechanics and service centres will replace the sump plug washer each time the oil is changed, which is best practice. It's a small and inexpensive replacement, but it means peace of mind that your drain plug will seal properly and help prevent any leaks.

Here are some key points about sump plug washers for the 2013 Mitsubishi Lancer:

• The washer provides a tight seal between the drain plug and sump to stop oil leaks
• It is typically made of a soft metal like aluminium or copper so it deforms slightly to seal around the plug
• The washer is a consumable part, meaning it compresses and should be replaced whenever the sump plug is removed
• Reusing an old washer can result in oil leaks or a loose seal, so it is not recommended

When servicing the oil on a 2013 Mitsubishi Lancer, the sump plug washer replacement is a quick and easy job that can save headaches later. After draining the oil and removing the sump plug, the old washer should be discarded. The new washer is fitted onto the sump plug before screwing it back into the oil pan. It's important to tighten the sump plug to the correct torque specification supplied by Mitsubishi to avoid over-tightening or under-tightening.

Over-tightening can crush the washer too much or strip the threads on the sump, which can be costly to repair. Under-tightening might not compress the washer enough, and oil could leak from the drain area. Using a torque wrench and a new washer guarantees a proper seal and safer engine operation.

While it might be tempting to reuse the old washer or skip replacing it, this is not a good idea. Aluminium and copper washers deform as they seal, and once crushed, they do not spring back to their original shape. Reusing an old washer compromises the seal, increasing the risk of slow leaks that might only become obvious after some time.

For owners of the 2013 Mitsubishi Lancer, regularly changing the sump plug washer is a simple step to keep your engine oil system in top shape. Since oil changes are typically done every 10,000 to 15,000 kilometres depending on your driving conditions and oil type, that's how often the washer should be swapped out too. It's a small cost that prevents oil leaks and avoids the hassle of topping up oil frequently between services.

In the end, the sump plug washer is one of those little parts that quietly does a big job. Keeping your oil sealed inside the engine means your Lancer runs smoothly and stays reliable on the road for years to come. Whether you're a hands-on DIYer or you take it to a mechanic, make sure you or your workshop never skip replacing the sump plug washer during oil changes. The right washer, fitted properly, will keep the oil where it should be and give you one less thing to worry about.