How To Change Motor Oil In Nissan Altima?

By Nick Marchenko, PhD

Updated: September 24, 2023

Ensuring a regular oil change is pivotal for the optimal functioning of the Nissan Altima’s engine. The role of oil is multifaceted—it lubricates all motor elements, maintains cooling, and guarantees stable engine operation.

Absent oil, the engine would cease to operate beyond five minutes, leading to jamming and malfunctioning. Though oil is indispensable, its properties diminish over time, necessitating periodic replacement.

Fortunately, the process of changing oil is relatively straightforward and demands just a basic understanding of the Nissan Altima's structure. Most service stations can complete an oil change quicker than one can enjoy a cup of coffee.

For those keen on economising or enthusiasts eager to personally maintain their vehicle, continue reading to learn the intricacies of changing the motor oil in your Nissan Altima.

Key Takeaways:

• Regular oil changes are crucial for maintaining the Nissan Altima’s engine performance.
• The Nissan Altima’s recommended oil change interval ranges between 5,000 to 12,000 miles, contingent on the oil type.
• Utilising old engine oil for extended periods can introduce detrimental elements to the system, risking engine damage.
• Selection of appropriate oil, filter replacement, and proper disposal of used oil at designated centres are vital when performing an oil change.

How often should you change the oil in Nissan Altima?

For passenger cars like the Nissan Altima, manufacturers typically recommend changing the engine oil every 7,500 to 10,000 miles, or at least annually, irrespective of mileage.

The vehicle’s service manual provides specific guidelines on oil change frequency, which varies depending on the intensity of the Nissan Altima's usage by the driver.

The general timeframe for motor oil changes is as follows:

Average Nissan Altima oil replacement intervals:

• Conventional oil - change interval - 5-7 thousand miles, or annually, whichever is sooner;
• Synthetic lubricant - Depending on its composition, this lubricant can last longer. Semi-synthetics should be changed every 7,500 miles, and full synthetics every 10,000 miles. Nonetheless, monitor your engine’s performance and change the oil sooner if irregularities are detected;
• Concurrently with the lubricant, it is advised to replace all filters. Oil filter replacement should coincide with the oil change, while replacing air and fuel filters is discretionary (but recommended).

Why is it important to change the engine oil in Nissan Altima?

When the engine operates, the oil interacts with all its components, collecting impurities such as soot, metal shavings, and carbon deposits. Neglecting timely oil changes results in the continuous circulation of these contaminants, progressively damaging the engine.

Furthermore, continuous exposure to high temperatures can degrade low-quality lubricants, compromising their effectiveness and leaving the engine poorly lubricated, which can lead to potential engine problems.

How to choose the proper oil for Nissan Altima?

Selecting the right oil is crucial as it can significantly influence the engine’s performance. While all oils might seem identical, their characteristics can differ greatly, impacting the engine either positively or negatively.

When choosing oil for your Nissan Altima, consider the following parameters:

Price. Opt for oil that aligns with your budget, avoiding overly cheap options. Counterfeit products can be detrimental, and it is imperative to ensure that the oil is authentic. Investing in quality oil is more cost-effective in the long run;

Manufacturer. Renowned brands are less likely to be counterfeit. Ensure you purchase oil from certified sellers;

Viscosity. Viscosity, denoted by figures like 5W-30, 10W-40, is a measure of the oil's flow resistance, with the number preceding the "W" indicating viscosity at low temperatures (W represents Winter) and the succeeding number indicating viscosity at 100°C. It is paramount to select a viscosity that corresponds to the Nissan Altima’s specifications and the prevailing climate in your region.

API Classification. The American Petroleum Institute (API) delineates oils based on their performance characteristics and the type of engine they are designed for, whether it be for gasoline or diesel.

These classifications are commonly displayed on the oil can and are designated as "SN", "SM", and "SL" for petrol engines, or "CK-4", "CJ-4", and "CI-4" for diesel engines;

Additives. Motor oils may contain an array of additives that serve different functions, such as:

• Detergent additives: These keep the engine spotless;
• Dispersants: Help in preventing sludge formation;
• Antioxidants: These prevent oil oxidation;
• Anti-wear agents: Provide protection to engine parts;
• Corrosion inhibitors: These prevent corrosion;
• Friction modifiers: Contribute to improved fuel efficiency.

Type of oil: Oils can either be mineral, synthetic, or a blend of the two.

• Mineral oils: These are derived directly from crude oil through refining processes;
• Synthetic oils: These are concocted using chemical processes that offer better performance, especially at extreme temperatures.

If you’re a bit perplexed about which oil is suitable for your Nissan Altima, fret not; we’ve done the legwork and compiled a list of recommendations suitable for your vehicle.

You can peruse this list here.

If you fancy choosing oil for your Altima’s engine yourself, we advise you to peruse our more detailed guide on how to choose the right oil. Here is the link.

How to change the oil in Nissan Altima?

Changing the motor oil is relatively straightforward, but there are several key considerations to ensure a smooth operation and to avoid any potential mishaps.

Time required: 30 minutes

Level of difficulty: 2/5

People needed: 1-2

Necessary equipment: 

• A set of wrenches or sockets;
• Rag(s);
• A key for unscrewing the filter or a belt;
• A container for draining used oil;
• A new oil;
• A new oil filter

Preparation Setup

Apparel - it’s the first thing to mull over before commencing any work. Opt for something you won’t mind parting with post-endeavour due to filthiness.

In the throes of the task, you might find yourself adorned in oil. This substance is quite tenacious, so opt for attire you won’t rue ruining.

Ponder upon the location where you’ll be conducting the oil change. You’ll need access to the undercarriage of the Altima, ensuring sufficient room for manoeuvre.

Here are several alternatives for your consideration:

• Manoeuvre the Nissan Altima onto a ramp or into a pit;
• Elevate the vehicle using a lift, jack it up securely;
• Ascertain that the Altima is stationed firmly. Safety is paramount!;
• Refrain from changing the oil immediately post an extensive journey. Let the Altima cool down for at least 10–15 minutes if the engine is warmed up to operating temperature.

Locate and unscrew the oil cap on the engine

Unscrew the oil filler cap, typically identifiable by an oil can icon or simply the word “oil” inscribed on its surface. Place the oil cap on a clean cloth, and wipe it clean of oil and debris if necessary.

Find the oil drain plug

Position yourself beneath the Nissan Altima in a manner convenient for you. Locate the plug on the engine; it’s fashioned as a nut and situated on the engine tray.

Now, position a container beneath this plug – one that’s adequately capacious to contain all the waste liquid. A container that’s too diminutive or a bottle with a narrow neck won’t do.

Ensure that all the oil is collected within, preventing any spills, for you will need to dispose of it subsequently. A deep basin or bucket would be optimal.

Unscrewing the Oil Plug

Firstly, procure the correct key that will acquaint perfectly with the plug. Gently turn the key to avoid compromising the thread or head, which would indeed result in a myriad of future complications. If the plug plays hard to get, an impact wrench can be your saviour, should one be at your disposal.

Do approach with caution, as post-unscrewing, the oil will commence its descent. Anticipate this, position the container strategically, and endeavour not to attire yourself in oil.

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Patience: Let the Oil Drain

Exhibit patience whilst the oil makes its exit. Since the oil filler cap has been previously unscrewed, this interval should be rather fleeting. Analyse the drained oil; any signs of shavings, debris, or the miniscule could point to potential engine predicaments, prompting a rendezvous with a mechanic.

Reattaching the Oil Plug

Prior to reattachment, a clean rag to wipe both the plug and its seat is advised, using either a degreaser or WD-40. This simple yet crucial step can spare future grievances. An overzealous tightening can lead to a myriad of problems, therefore, consulting the vehicle’s owner’s manual for the correct tightening torque is sage advice.

Oil Filter: The Unscrewing Saga

Positioned on the side of the engine block, the oil filter requires a counterclockwise motion for removal. If stubbornness prevails, a leather belt or a specialised tool can prove handy. Do bear in mind, the filter houses residual oil, necessitating a clean rag for any immediate spillages.

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Introducing the New Oil Filter

A dab of engine oil around the filter’s seal facilitates future replacements. The choice to pre-fill the filter with oil remains at your discretion. Securely screw in the filter to avoid any undesirable oil leakage.

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Refilling with the Elixir: New Motor Oil

With everything securely in place, it’s time to introduce the new oil. Consult this source for the precise quantity, avoiding overfilling which could be detrimental to the engine. Regular checks with a dipstick will ensure optimal levels before resealing with the oil filler cap.

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Responsible Disposal of Used Motor Oil

The completion of your oil change heralds the necessity for responsible disposal. Specialized centers ensure eco-friendly disposal, allowing you to contribute to environmental conservation.