Oil leaks can be a real hassle. There are several reasons why an oil filter might start leaking, but in this post, we’ll focus on the two most common causes that you should be aware of.
**1. Faulty Seal on the Oil Filter**
A damaged or faulty seal is one of the top reasons for oil leaks. The seal is designed to keep oil contained within the filter and prevent it from escaping. Over time, seals can degrade due to age, exposure to heat, or poor manufacturing quality. Here are some common causes:
- **Age:** Oil filters aren’t meant to last forever. If the seal becomes brittle or cracked, it’s time for a replacement.
- **Low-quality materials:** Aftermarket oil filters may use cheaper materials that don’t hold up as well over time.
- **Incorrect size:** Using the wrong size filter can lead to improper sealing and eventual leaks.
- **Manufacturing defects:** In rare cases, a defective seal can cause problems right out of the box.
**2. Incorrect Installation**
Even the best oil filter won’t work properly if it’s not installed correctly. Many oil changes are done by less experienced technicians, which can lead to mistakes like over-tightening, cross-threading, or damaging the seal during installation. Common issues include:
- Cracked or worn housing
- Damaged threads
- A compromised seal
These errors can all lead to oil leakage, which not only creates a mess but can also damage your engine over time.
**The Best Way to Prevent Oil Leaks: Use OEM Oil Filters**
While there are some high-quality aftermarket options available, OEM (Original Equipment Manufacturer) oil filters are generally more reliable. They’re built to meet the exact specifications of your vehicle and undergo strict quality checks before being sold. Here's why they're the safer choice:
- OEM filters are made with high-quality materials.
- They are tested to ensure proper fit and function.
- They are designed specifically for your make and model.
Although some aftermarket brands offer comparable performance, using OEM oil filters gives you peace of mind and reduces the risk of leaks. For the best results and long-term reliability, always go with OEM when replacing your oil filter.
Remember, a small investment in a quality oil filter can save you from costly repairs down the road.



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