Jeep 4.0L Oil Type And Capacity

If you’re looking for an SUV worth buying, Jeep is the car brand that will prove itself. Jeep vehicles have the best road advantage, from rugged terrains to smooth surfaces. Not only that, the driving experience that Jeep provides its users has always been commendable. 

Jeep 4.0L Oil Type And Capacity

Despite this, the Jeep’s oil efficiency has been debated in many instances. This is why you should know how you can find the oil capacity of a Jeep 4.0L engine.

With this knowledge, you will know how much oil the engine consumes and prevent you from overfilling, which will help protect the engine from getting damaged earlier. 

How to Find the Jeep 4.0L Oil Capacity

Most Jeep 4.0L SUVs you see use 6 quarts of oil for their engines. In the US, 6 quarts is 1.5 gallons of oil or 5.7 liters. 

Repairing manuals that come along with the Jeep advise users not to use more than 5 quarts of oil and specify the capacity at 5 quarts as well. 

When changing the oil filter and oil in your Jeep engine, remember to fill the oil up to the top level of the dipstick. This fills up the engine with about 5.5 quarts of oil. However, depending on the oil filter, this amount varies between 5.5 and 6 quarts. 

Also, remember that a dry engine, such as after a rebuild, usually comes with a fill level of 6 quarts. Some oils stay in the engine even when the oil is being changed.

If you are doing this maintenance on your own, don’t forget that you need to reset the oil service light of your Jeep. You can reset the light after an oil change. 

Reset any remaining lights after getting any servicing done in your Jeep. 

What Type of Oil Does a Jeep 4.0L Engine Require?

If you look after it properly, your Jeep vehicle can last a lifetime. Choosing the right motor oil for your Jeep is one crucial decision many people don’t think about. The right motor oil will keep your Jeep engine healthy. 

The Jeep 4.0L engine was introduced in 1986 and proved to be one of the best engines people could go off-roading with. This engine has been used in almost every Jeep model, including the Cherokee and Wrangler.

The six-cylinder engine can drive up to 200,000 miles without causing any major trouble or problem. While the market is full of motor oils that claim to be the best for the Jeep’s 4.0L engine, here is a list of a few that will keep your engine healthy:

  1. Castrol Edge Advanced Full Synthetic 
  2. Pennzoil Platinum Full Synthetic 
  3. Valvoline Full Synthetic Advanced
  4. Royal Purple High-Performance Synthetic 
  5. Mobil1 High Mileage Full Synthetic

These engine oils ensure that your engine runs smoothly without any significant problems. 

How Much Oil Does a Jeep 4.0L Engine take?

It takes about 6 quarts of oil to fill a 4.0L engine up. 5.5 quarts of oil will be enough for most Jeeps, depending on your oil filter. The engine can also fill up with 5 quarts. 

Six quarts of oil are used mostly for dry engines. The viscosity recommended for the motor oil is between 5W and 30W. 

The manual gearbox can contain 1.5 liters or 0.4 gallons. The volume of oil in an automatic gearbox is 3.8 liters or 1 US gallon (4.2 quarts). 

How Much is a Jeep 4.0L Oil Capacity? 

The oil capacity for a 4.0L engine is about 6 to 6.2 quarts

Here is a chart that explains oil capacity, viscosity, and torque depending on the models and years of different Jeeps. 

Model Year Oil Capacity Viscosity Torque 
Jeep Cherokee XJ 4.0L1987-19905.5 quarts (filter included)10W – 30, 10W – 40, 20W – 40, 20W to 5030 ft/lbs
Jeep Cherokee XJ 4.0L1991-19996 quarts (filter included)10W – 305W – 3030 ft/lbs
Jeep Cherokee XJ 4.0L2000-20016 quarts (filter included)10W – 305W – 3025 ft/lbs
Jeep Grand Cherokee ZJ 4.0L1993-986 quarts (filter included)10W – 305W – 3030 ft/lbs
Jeep Grand Cherokee WJ 4.0L1999-20046 quarts (filter included)10W – 305W – 3025 ft/lbs
Jeep Wrangler YJ1991-956 quarts (filter included)10W – 305W – 3030 ft/lbs
Jeep Wrangler TJ/LJ1997-996 quarts (filter included)10W – 305W – 3025 ft/lbs
Jeep Wrangler TJ/LJ2000-066 quarts (filter included)10W – 305W – 3025 ft/lbs

Why is Oil Maintenance Important for the Jeep 4.0L Engine?

Dirt and debris build up as you continue to use the engine. This dirt can easily be removed by changing the oil. Sludge can also build up in the vehicle engine. Oil changes improve engine performance and make it run efficiently. 

Oil changes also prevent the engine from overheating and keep it well-lubricated. Regular engine maintenance will prolong its life, ensuring it doesn’t trouble you. 

You can keep your Jeep 4.0L engine safe and healthy by making timely oil changes to prevent heavy wear and tear during long drives. 


Jeeps are considered highly reliable vehicles in the car industry and perfect for adventurous journeys on rough terrains. 

You don’t want to end up stranded just because you weren’t carrying enough oil. You can change the oil yourself if you have all the equipment; otherwise, head to the closest professional mechanic who will get the job done.

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How often do you change the oil in a Jeep 4.0L engine?

Typically, an oil change for a Jeep 4.0L engine should take place every 3000 to 5000 miles or after every 6 months. Sometimes, you may have to change the oil sooner than this. Keep checking oil levels each month.

How can I tell if it’s time for an oil change?

If you notice that the oil has changed from light brown to black, it’s time to change it. If the oil has a coarse texture or your engine is making weird sounds, it’s a signal that an oil change is required. If you can smell oil, smoke, or something burning while the engine is running, it’s also time for an oil change. 

Can I change the oil and oil filter at home?

Yes. You will need tools like a filter wrench, socket wrench, drain pan, a sealable container for old fluid, a fresh oil filter, and 6 quarts of the motor oil you use for your Jeep 4.0L engine. 

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