Locating the oil filter on a 2015 Nissan Altima is a fundamental task for any owner performing routine maintenance. This specific model year positions the filter in a way that requires access from beneath the vehicle, making a proper lift or ramps essential for safety. Understanding the exact location helps streamline the process, saving time and preventing unnecessary frustration during an oil change.
Underhood Component Location
Before diving under the car, it is helpful to open the hood and identify related components. The 2015 Altima’s engine layout means the oil filter is not near the top of the engine block. Instead, it is situated low on the passenger side, adjacent to the oil pan. Looking from the front of the engine, you will find the filter housing sitting vertically behind the alternator.
Accessing the Filter from Below
To actually reach the filter, you must get underneath the vehicle. Ensure the car is securely lifted using a jack and supported by jack stands, or drive onto sturdy ramps. Once under the car, locate the oil pan, which is the large, shallow metal container at the bottom of the engine. The oil filter is positioned directly above the oil pan, mounted vertically to the engine block.
Physical Description and Identification
The filter itself is a cylindrical metal canister, roughly the size of a large soda can. It is attached to the engine block with a rubber gasket and a single locking strap. The strap is usually secured with a bolt that requires a specific socket size, typically around 15mm, to loosen. The exterior of the filter often has ridges for grip and may be labeled with text indicating its purpose.
The Role of the Filter in Engine Health
The oil filter is a critical component that ensures the longevity of the engine. As the oil pump circulates lubricant through the engine, it picks up metal shavings, dirt, and debris. The filter traps these contaminants, preventing them from grinding against precision-moving parts. On the 2015 Altima, maintaining this component is vital for achieving the best fuel economy and performance.
Replacement Procedure Tips
When changing the oil, the filter must be replaced or thoroughly cleaned. Before removing the old filter, apply a small amount of fresh oil to the new gasket on the replacement filter. This ensures a proper seal and prevents dry starts, which can cause leaks. Tighten the new filter by hand until it is snug, but avoid overtightening, as the rubber gasket can tear and cause significant oil loss.
Safety and Maintenance Reminders
Always ensure the engine is cool before attempting to service the oil filter. The oil and metal components can retain significant heat long after the engine is turned off. Dispose of the old filter and used oil responsibly, as they are hazardous to the environment. Many auto parts stores accept used oil and filters for recycling at no cost.
