How To Change Motor Oil In Toyota 4Runner?

By Nick Marchenko, PhD

Updated: September 23, 2023

Regular change of the motor oil is essential for the proper operation of the Toyota 4Runner’s engine. Oil is responsible for the lubrication of all motor elements, along with cooling and providing stable work for the engine.

Without the oil, the engine will run no longer than five minutes. Then it`ll be jammed and out of order. Motor oil performs an important function, but unfortunately, after a while, it loses its properties.

To prevent oil from harming the engine, one has to replace it from time to time.

Luckily, the oil change procedure is quite straightforward and requires only a general understanding of the Toyota 4Runner`s structure. At any service station, your engine oil will be changed faster than you can drink a cup of coffee.

However, if you want to save money or you`re an enthusiast who likes to get hands-on with your vehicle, keep reading this article till the end to know how to change the motor oil in your Toyota 4Runner.

Key Takeaways:

• Regular motor oil changes are vital for the proper operation of the Toyota 4Runner’s engine.
• The recommended oil change interval for the Toyota 4Runner ranges between 5,000 to 12,000 miles, depending on the type of oil.
• Prolonged usage of old engine oil can circulate harmful elements in the system, leading to engine damage.
• When changing the oil, it's essential to select the proper oil, replace filters, and properly dispose of used motor oil at specialized centers.

How often should you change the oil in Toyota 4Runner?

In passenger cars like the 4Runner, manufacturers advise changing the engine oil every 10-15 thousand kilometers (6200 - 9300 miles, respectively).

At the same time, regardless of the distance traveled by the SUV, the oil must be changed at least once a year, even if the Toyota 4Runner has not been used at all.

Also, the answer to the question of how often you need to change the oil in the Toyota 4Runner is mentioned in the service manuals for each car. The frequency of changing the oil in the engine directly depends on the intensity of use of the Toyota 4Runner by the driver.

We provide you with the general duration of the motor oil change.

Average Toyota 4Runner oil replacement intervals:

• Conventional oil - change interval - 5-7 thousand miles, or once a year, whichever happens more often;
• Synthetic lubricant - Depending on its structure, this lubricant can last longer. Semi-synthetics can be changed once every 8-9 thousand miles, and full synthetics can be changed once every 12 thousand miles. However, keep an eye on the operation of your engine - if you notice any changes or it starts to run unevenly - it may be time to change the oil;
• Together with the lubricant, we recommend replacing all filters. The replacement of the oil filter must be carried out together with the replacement of the lubricant, while the air and fuel filters are optional (however, we advise you to change them anyway).

Why is it important to change the engine oil in Toyota 4Runner?

When the engine is running, the oil is in contact with all its elements: it lubricates them, and, accordingly, collects everything that may be there. For example, soot, metal shavings, and carbon deposits - everything you have on the pistons - will also be in the oil.

If you ignore the oil change for a long time, then all these elements will continue to "circulate" through the system, destroying the engine from the inside.

In addition, at constantly high temperatures, low-quality lubricant can lose its properties and no longer perform its work properly.

As a result, the oil will be closer to water in consistency, and your engine will be poorly lubricated, which can lead to burrs, overheating, and wedging.

How to choose the proper oil for Toyota 4Runner?

Choosing the right oil is critical for the performance and longevity of your 4Runner. It might seem like there’s little difference between various lubricants, but this isn’t the case. The oil varies in its specifications and can significantly affect the operation of the engine.

Here are the main parameters that you should pay attention to when choosing oil for your Toyota model:

The price. Find an oil that fits your budget, but avoid going too cheap. Counterfeits are a risk, and the last thing you want is an unknown substance circulating in your engine. Remember, buying cheap can be costly in the long run;

Manufacturer. Opt for a reputable manufacturer to minimize the risk of buying a counterfeit. Purchase oil only from certified sellers;

Viscosity. This is a crucial factor. Viscosity measures the oil's resistance to flow and is represented by values such as 5W-30, 10W-40, etc.

The number before the "W" represents the oil's viscosity at low temperatures (W stands for Winter), while the number after the hyphen indicates the viscosity at 100°C. It’s imperative to select an oil with a viscosity that matches the technical specifications of your Toyota 4Runner and the climate in your region.

API Classification. The American Petroleum Institute (API) categorizes oils by their performance characteristics and the engines they are intended for, such as gasoline or diesel.

These classifications are often visible on the oil can and are labeled as "SN", "SM", and "SL" for gasoline engines or "CK-4", "CJ-4", and "CI-4" for diesel engines;

Additives. Engine oils might include additives serving various roles, for instance:

• Detergent additives: Maintain engine cleanliness;
• Dispersants: Hinder sludge buildup;
• Antioxidants: Avoid oil oxidation;
• Anti-wear agents: Shield engine components;
• Corrosion inhibitors: Block corrosion;
• Friction modifiers: Enhance fuel economy.

Type of oil: Oils may be mineral, synthetic, or a blend of both.

• Mineral oils: derived directly from crude oil through refining methods;
• Synthetic oils: are crafted using chemical methods that offer superior performance, especially at extreme temperatures.

If you're uncertain about the appropriate oil for your Toyota 4Runner, fret not; we've tested the suitable oil for your vehicle.

Check out the list of recommendations here.

If you wish to select oil for your Toyota 4Runner's engine on your own, we suggest consulting our comprehensive guide on picking the right oil. Here is the link.

How to change the oil in Toyota 4Runner?

Changing the engine oil is relatively straightforward, but there are several considerations to ensure smooth operation and prevent any damage to the vehicle or oneself.

Time required: 30 minutes

Level of difficulty: 2/5

People needed: 1-2

Necessary equipment: 

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

Preparation Setup

Attire is the first thing to consider before beginning any work. Wear something old or something you won't mind getting dirty.

During the procedure, you might get stained with oil. This stain is pretty stubborn, so it's advisable to wear clothes you can discard afterward.

Consider the location for changing the oil. You need access to the underside of the car and sufficient space to work comfortably.

Here are several alternatives to consider:

• Drive the Toyota 4Runner onto a ramp or into a pit in the garage;
• Elevate your vehicle on a lift, jack it up, and secure it;
• Ensure the Toyota 4Runner is stable and won’t fall. Safety first!;
• Don’t change the oil right after a long drive. If the engine is heated, the oil will be extremely hot. Let the Toyota 4Runner cool down for at least 10–15 minutes to avoid injuries.

Locate and unscrew the oil cap on the engine

Unscrew the oil filler cap. Typically, it’s marked with an oil can symbol and the word “oil”. Place the oil cap on a clean cloth and wipe it clean if necessary.

Find the oil drain plug

Slide under the Toyota 4Runner in a convenient manner. Locate the plug on the engine; it's shaped like a nut and situated on the engine tray.

Now, position the container beneath this plug. Ensure the container is large enough to collect all the waste oil. Avoid using a small container or a bottle with a narrow neck.

Keep in mind, you need all the oil to be collected without spillage, and you should be able to dispose of it later. A deep basin or bucket is the most suitable option.

Loosening that Oil Plug, 4Runner Style!

Firstly, mate, select the correct key that fits the plug on your Toyota 4Runner. Give it a twist, but be careful! We don’t want any stripped threads or broken heads, it’ll only cause a load of trouble. If it’s playing hard to get, an impact wrench could be your best pal here!

And watch out! Once you unscrew it, the oil’s gonna come rushing out like a waterfall! Have your container ready and try not to make a mess, eh?

Shop From Amazon

Time for a Drain!

Now, have a cuppa while you wait for that oil to drain. Got the oil filler cap off? Good! Shouldn’t be long now. Inspect the oil, any shavings or debris could be a sign your 4Runner is trying to tell you something. Might be worth a trip to the mechanic!

Screw it Back, Nice and Easy!

Before screwing in the plug, give it a good wipe. A bit of degreaser or WD-40 won’t hurt. Trust me, a bit of effort now saves a lot later! Make sure it’s tight but not too tight, and check the 4Runner’s owner’s manual for the correct torque.

Filter Out the Old!

On to the oil filter! Located on the side, give it a counterclockwise twist. A bit stubborn, is it? A leather belt or a special tool might do the trick! And remember, it’s got a bit of oil in it, so have that rag ready!

Shop From Amazon

Bring in the New Filter!

Lube up the seal with some oil, and screw in the new filter. Easy does it, make sure it’s snug and secure!

Shop From Amazon

Time to Fill ‘Er Up!

With the plug and filter in place, pour in the new oil. Check here for the correct amount for your 4Runner. Keep an eye on the level, and you’re golden!

Shop From Amazon

Dispose of the Old Oil Responsibly!

Done with the oil change? Brilliant! Now, dispose of the used oil responsibly. Taking it to a recycling center is the way to go! Do your bit for the environment, it’s a win-win!