Best Oil for Jeep 4.0 Engine | Top Reviews and Buying Guide

Jeep 4.0 engine, not just for off-road driving or hunting, it’s an everyday vehicle that you can use in all different types of weather. So, you need to find the best oil for Jeep 4.0 engine.

The best oil for your jeep will depend on how much you drive, your climate, what type of driving conditions you encounter, etc. For example, we can tell you that if you are in an area where it snows or has wet weather often, then using synthetic oils could be good because they do not break down as quickly when exposed to these harsh conditions.

best oil for Jeep 4.0 engine

Best Oil for Jeep 4.0 Engine Reviews

Here we are going to review the 7 best oil for jeep 4.0 engine. I am sure you will be able to find one that is perfect for your vehicles.

1.  Castrol 03081 Edge 10W-30 Advanced Full Synthetic Motor Oil

Castrol 03081 10W-30 Advanced Full Synthetic Oil

Product review:

Castrol Edge 10W-30 Advanced Synthetic Motor Oil is the most advanced Jeep 4.0 engine oil that delivers exceptional performance and fuel economy. Castrol’s premium full synthetic engine oils have been engineered with fluid titanium technology to provide superior protection for many years against engine failure, reduce friction, and clean deposits for optimal performance. It is the ultimate choice for your vehicle, and it protects engines from start to finish.

Castrol’s exclusive oil helps to reduce friction inside your engine, which means better fuel economy and less wear on your engine parts. The result? You can go farther between fill-ups without sacrificing power or performance. Just remain alert, don’t spill oil on engine of your car.

Technical details:

Castrol oil with a 10W-30 viscosity is recommended for use in most cars. This liquid has 160 fluid ounces and comes in 9.38-pound bottles that measure 12.75 x 8 x 4.5 inches each when packed together into the box.


  • It provides superior engine protection, performance, and strength.
  • Help prevent deposits, wear, and oxidation; help increases horsepower and fuel economy.
  • The premium full synthetic oil offers the best performance against deposits.
  • Castrol Edge is a premium full synthetic oil that provides exceptional protection for your engine under all driving conditions. It’s the best performance motor oil you can buy.


  • Synthetic motor oil
  • Premium quality
  • High performance


  • Bit expensive

2.  Mobil 1 High Mileage 10W-30 Motor Oil

Mobil 1 10w30

Product review:

Mobil 1 High Mileage 10W-30 Motor Oil is a fully synthetic motor oil specially formulated to help extend the life of high mileage engines. It is the best 4.0 jeep oil. This motor oil features low viscosity and can be used for gasoline and diesel engines with little or no adjustment.

It also helps reduce friction, helping to prevent deposits and sludge buildup on engine parts. It reduces wear by protecting engine parts from corrosion, rusting, and pitting. And it helps protect against leaks in your vehicles. In addition, it provides superior protection at startup so your engine can run smoothly during those first few minutes of operation.

Technical details:

A motor oil brand made with 100% synthetic blends base oils and additives for using in cold weather. This 10W-30 viscosity lubricant comes in a large volume bottle. It weighs 9 pounds, and the dimensions are 4.4 x 8.1 x 12.6 inches long, wide, and high, respectively.


  • This oil provides the protection you need for up to 75,000 miles.
  • The formula also meets ILSAC GF-6 standards for low-speed pre-ignition and timing chain wear protection. So, you can rest assured that your vehicle is protected from harmful deposits and wear.
  • Provides outstanding protection against engine wear and deposits, reduces oil consumption, and helps extend engine life.
  • This high mileage recommended motor oil is designed to meet all the requirements of your vehicle’s engine.


  • High engine mileage.
  • Wear protection.
  • Reduce oil consumption.


  • No technical flaw in the product.

3.  Pennzoil Platinum Full Synthetic 10W-30 Motor Oil

Pennzoil Platinum Synthetic 5W-30 Engine Oil

Product review:

Pennzoil Platinum Full Synthetic Motor Oil is the world’s first full synthetic motor oil for jeep 4.0 to use Pure plus technology. It provides better engine protection than conventional and other synthetic oils, even at extreme temperatures. Experts recommend this best oil for the jeep 4.0 for the vehicles driven under severe conditions or infrequently.

It provides faster low-temperature oil flow, excellent engine cleanliness, and maximum engine safety. It offers unsurpassed levels of fuel economy, horsepower, and torque for today’s vehicles.

Technical details:

Pennzoil platinum motor oil is designed for your car. This product has a viscosity of 10w-30 and usable in any vehicle service type, including cars. The Pennzoil brand creates this liquid volume of 160 fluid ounces with an item weight of 9.43 pounds and package dimensions ‎11.6 x 7.8 x 4 inches.


  • Pennzoil Platinum Full Synthetic 10W-30 Motor Oil is made from natural gas.
  • It can provide exceptional performance in all weather conditions.
  • It’s formulated for use in both gasoline and diesel engines, providing maximum protection against viscosity breakdown for extended drain intervals.


  • Made from natural gas.
  • High performance in all weather conditions.
  • Better wear protection.


  • Poor packaging

4.  Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil

Valvoline Advanced SAE 5W-30 Motor Oil

Product review:

Valvoline Advanced Full Synthetic SAE 5W-30 Motor Oil protects your car’s engine against heat, deposits, and wear by combating the three primary causes of engine stress. It’s a full synthetic formulated jeep 4.0 oil type. It comes with more durable anti-wear additives that provide long-lasting performance.

Valvoline Advanced Full Synthetic Motor Oil is designed to help keep engines running cool, clean, and strong for up to 10,000 miles. It is fully synthetic formulated with more durable anti-wear additives for maximum protection you can count on. Valvoline’s advanced formula provides better fuel economy, too.

Technical details:

Valvoline Motor Oil is a 5w-30 motor oil that comes in an orange bottle. It has 9 pounds of product and 8.22 x 4.6 x 12.66 inches as dimensions. It makes it easy to store on your shelf at home or in the garage!


  • The Advanced full synthetic 5w 30 oil is a high viscosity index for excellent thermal stability. It helps to keep your engine running at its optimum temperature under all conditions.
  • Valvoline’s detergent additives clean away dirt and grime from vital engine parts, preventing sludges.
  • Valvoline’s exclusive additive technology provides superior engine protection to help extend the life of your vehicle.
  • It is full synthetic engine oil that meets or exceeds the requirements of all car manufacturers for use in their vehicles.
  • You can use it in gasoline and diesel engines, including turbochargers, superchargers, or variable valve timing systems but do not use in transmission.


  • Synthetic engine oil.
  • High viscosity index.
  • Prevent sludge and dirt.


  • Some say its smell is burning

5.  Pennzoil 550045205 5 quart 10W-30 High Mileage Motor Oil

Pennzoil High Mileage 10W-30 Oil

Product review:

Pennzoil 550045205 High Mileage Motor Oil is formulated with a proprietary additive package. It is the best oil brand to provide superior protection for engines that have accumulated more than 75,000 miles. In addition, the oil offers extra lubrication and helps prevent leaks that may develop and cause higher oil consumption.

This Pennzoil motor oil is recommended for use in high-mileage vehicles and light trucks. It meets or exceeds the requirements of all domestic and imported passenger cars and light trucks using conventional, synthetic-blend, or synthetic oils.

Technical details:

Pennzoil motor oil is packaged in a jug or bottle, with a viscosity of 10w-30. You can use it for cars and trucks. It has 160 fluid ounces that weigh 9.23 pounds. Its dimensions are 12 7 8 4 inches long on each side of the packaging/jug/bottle it comes in.


  • Pennzoil High Mileage Motor Oil with Pure plus technology provides the ultimate protection for your engine.
  • It helps to prevent oil leaks and burn off, which can occur when you have many miles on your vehicle.
  • It helps protect against viscosity and oxidation loss, so your engine stays cleaner longer.
  • With Pennzoil High Mileage Motor Oil, you get the best protection for your engine while saving money at the pump!


  • High mileage motor.
  • Natural ingredients.
  • Ergonomic bottle design.


  • Some complaints about the packaging.

6.  Royal Purple 51530 High-Performance Motor Oil

Royal Purple 51530 High Performance engine Oil

Product review:

Royal Purple 51530 High-Performance Motor Oil is a synthetic motor oil for jeep 4.0. It provides increased engine care. The proprietary formula of this Royal Purple engine oil contains additives with advanced chemistry that reduce friction and wear while also increasing horsepower and fuel economy.

This high-performance car engine oils can increase the life of your vehicle’s engine by preventing harmful deposits from forming on critical internal engine components. It can be used in gasoline and diesel engines and includes a built-in detergent to help remove contaminants from the engine.

Technical details:

The Royal Purple 51530 High-Performance Motor Oil is a dense and full-flavored oil with 160 fluid ounces. This product weighs 8 pounds and measures 8.25 x 5 x 8.5 inches, making it an active replacement for your current motor oil.


  • Royal Purple 51530 High-Performance Motor Oil is a premium synthetic blend oil designed to provide better wear protection.
  • The chemical composition increases fuel efficiency and superior corrosion protection.
  • The best oil for jeep is a high-quality synthetic blend motor oil that provides exceptional engine safety for gasoline engines.
  • This high-performance motor oil delivers excellent wear protection, increases fuel economy.
  • It protects against harmful sludge buildup in modern engines with lower energy requirements.


  • High-quality synthetic oil.
  • Excellent wear protection.
  • Prevent sludge buildup.


  • No technical flaw in the product.

7.  Valvoline High Mileage Synthetic Oil

Valvoline High Mileage SAE 10W-30 Synthetic Blend Oil

Product review:

High Mileage with MaxLife Technology SAE 10W-30 Synthetic Blend Motor Oil 5 QT is a premium motor oil for jeep 4.0. It is designed to keep your engine running longer. In addition, it has a blend of premium seal conditioners.

It helps to reduce engine wear and tear while adding extra detergents for better cleaning performance. This synthetic blend motor oil also contains a thick & durable layer of anti-wear film that will help protect your engine from premature wear and tear caused by friction between moving parts.

Technical details:

This item weighs 9.11 pounds, is 8.22 inches long, 4.6 inches wide, and is 12.66 high in the package. It comes in a bottle with 5 quarts of Valvoline motor oil inside of it that has a viscosity of 10W-30 for cars as vehicle service type and brand name being “Valvoline.”


  • It is a synthetic blend motor oil that provides the ultimate engine protection against wear, deposits, sludge, and leaks.
  • Valvoline High Mileage with Max Life Technology is engineered to deliver outstanding performance in high mileage engines with more than 75,000 miles.
  • It can fight against engine wear by providing exceptional fuel economy and maximum protection for your vehicle.
  • It keeps engines running like new longer while providing better gas mileage and peak engine performance.
  • It’s also compatible with all vehicles, including cars, trucks, SUVs, and vans.


  • Peak engine performance.
  • For all types of vehicles.
  • Ultimate protection.


  • No technical flaw in the product.

Buyer guide of the best oil for Jeep 4.0 engine

What is the best oil for a jeep 4.0 engine? Is it 5w-30 or 10w-30? What about synthetic oils? Should I use that? These are all questions that people ask themselves when looking to buy motor oil for their car. In this buying guide section, we will discuss which types of oils are best and why. We’ll also provide a buyer’s guide so you can find the right type of oil jeep wrangler at the right price!

Type of oil:

The first factor you need to consider before purchase is what type of oil you should buy. In general, there are three types of motor oils: petroleum-based oils, mineral-based oils, and synthetic oils.

Petroleum-based oil:

Petroleum is a mixture from the ground that contains many different chemicals, including benzene, toluene, and xylene, which can cause cancer in high concentrations.

Mineral-based oil:

Mineral-based oil is considered much less harmful than its petroleum counterpart because it’s only composed of natural minerals such as sulfur or clay mixed with paraffin waxes. However, even though they’re safer for humans, this type has higher chances to clog up your engine due to small particles present in the mix called “ash.” If ash deposits accumulate inside your engine’s channels, then you’ll need paint thinner or diesel fuel.

Synthetic oil:

Synthetic oil is the most expensive of the three, but it’s also the best option because it has no ash and is very resistant to heat due to synthetic components.

Type of engine:

The next factor you need to consider is your engine. Some engines are designed to run on synthetic oil, but if you’re not sure, I suggest you stick with conventional or semi-synthetic since they’re the most compatible ones.

Driving condition:

The other factor you need to consider is your driving conditions. If you’re not a frequent driver, then your best choice is conventional oil. If it’s the other way around, then semi-synthetic or full synthetic are better options for you since they can withstand higher temperatures and increase engine life span.


The last factor to consider when buying motor oil for a jeep engine is price range. Conventional oils come at lower prices than both synthetic and semi-synthetic. That makes them very attractive, especially considering that we all have budgets we need to follow and car repairs bills piling up over time.

How to Change an Oil Jeep Wrangler

If you have a personal Jeep Wrangler, you need to change your engine oil regularly. By following the below steps, you can do oil change easily.

Items required:

  1. Engine Oil
  2. Hand Gloves
  3. Flathead screwdriver
  4. Motor Oil drain container
  5. Funnel
  6. 13mm & 24 mm socket and ratchet
  7. Oil filter
  8. Clean Cloth or Towel


Step 1: Engine Cap Removing

First of all, you need to remove the plastic engine cap. It is easy to remove as it is not bolted with the engine. Just grab it and pull up. Then, you will find an oil filter cap and engine oil filter, that needs access to change the oil.

Step 2: Drain the previous oil

Place the oil drain pan under your Jeep wrangler. Using a 13 mm ratchet, loose the drain plug and keep the oil drain container near the drain bolt to avoid splashing oil. Take some time to do the process of completely draining out the engine oil.

Step 3: Change Oil Filter

Allow to drain out the used oil entirely. By this time, start to change the oil filter. Use a 24 mm socket ratchet to loosen the old oil filter and remove it using your hand. Use the fresh cloth to clean oil from the oil cap and gently pull the cap to remove the filter.

Open O’ring at the top of the oil cap using the flat head screwdriver and replace it with the new ring. Dip a clean cloth or finger into the good engine oil and rub it on the replacement ring and plastic threads on the oil cap. After that, push gently the oil filter into the oil cap until set it accurately. Finally, tighten the oil cap, including filter into its location.

Step 4: Tighten Jeep’s Drain Plug

Physically go under the jeep and roll fingers to set the oil drain plug into position. Check the Owner’s manual to know the torque tightening measurement of the plug. Use the towel to wipe the surface of the oil pan to avoid dust and dirt formation.

Step 5: Add Good Brand Oil

Use the recommended motor oil after checking the user manual. Unscrew the oil filter cap and remove it. After that, start adding oil into the engine using the funnel. If the engine needs 6 quarts of oil, initially add 5 quarts and then, start the engine to circulate through all engine parts. After that, stop the engine and add the remaining one-quarter of oil.

Step 6: Final Touch

After finishing of adding oil, check oil leaks, nut bolt loose or other problems. Clean all the parts and used tools. Record the running mileage for keeping a record for the following oil change. Go for a safe drive.


1. Does Jeep recommend synthetic oil?

Jeep recommends using synthetic oil for vehicles with V6 and V8 engines. It’s a great way to save money over the long term because you’ll need to change it less often. It can cost more than non-synthetic oil, but it lasts longer, which means you’ll spend less in the long run.

2. How long do 4.0 Jeep engines last?

A 4.0 Jeep engine can last for a while, but it depends on how well you maintain it and any issues with the car. If your transmission breaks down, for example, this could damage your engine as well. However, a 4.0 Jeep engine can last anywhere from 200,000 to 300,000 miles if well maintained and taken care of properly.

3. How much oil do I put in my 4.0 L Jeep?

Well, it depends on the miles per gallon. However, if yours gets 5 mpg, then I would say that you need to fill it with 8 quarts of oil. So for most situations, you should fill your engine to the maximum mark. Sometimes though, you’ll need more or less oil depending on the temperature of the air and water around it.

4. What brand of oil does Jeep recommend?

Jeep recommends a brand called Castrol. It’s been one of the leading manufacturers for almost 100 years, and it has a full line of products to prevent engine damage from overheating. Jeep recommends using oil that is made of synthetic material. It lasts longer and helps you get the most out of your Jeep engine for years to come.

5. What kind of oil does a 2000 Jeep Cherokee take?

I would use 5W-30 or 10W-30 oil, depending on where you live. If it’s colder, go with the thicker oil to prevent cold engine startups problems. Most people use 5w30 oil in their jeep grand Cherokee. It’s a great weight for all-season driving and is also an approved grade for many cars in the Jeep line, so it’s easy to find.

6. How often do jeeps need oil changes?

You should change your jeep oil every six months, so check the owner’s manual for more information. If you own a Jeep, then I assume that you want to take care of it. You don’t have to worry about the oil because, in most cases, it doesn’t need changing at all! But if you observe oil pressure drop wile driving, check your engine oil level and condition. If the quality of crude oil is not up to mark or oil leaks from the car engine, then do the oil change after draining the old oil through drain plug or engine repair as required.

7. Why is Jeep Wrangler Leaking Oil?

The jeep wrangler is leaking oil due to the following reasons.

  1. Damaged Oil filter: Engine oils can leak due to faulty oil filter or improper fitting during oil change.
  2. Drain Plug: Oil will leak higher if the oil drain plug is damaged or kept loosen.
  3. Valve gasket: The maximum oil leaks occur from the jeep Cherokee through the valve cover gasket. If the oil leaks through the valve gasket, and oil on spark plug occurs, create an ignition problem.
  4. Oil Pan: Oil pan leaking is common for engine oil leaks. To repair the oil pan leaking is costly and time-consuming.


So, which is the best oil for Jeep 4.0 engine? Well, it depends on what you need! We hope this article has helped to highlight some of the most important features and benefits that come with each type of oil so you can make a more informed decision about which one will work best for your needs. If all these options seem overwhelming and you want someone else to do it for you, we have 7 recommendations from our list above that should be perfect.


Mr. Rubel is an Engine Mechanic. He has more than 15 years’ experience on repair and maintenance of different kinds of vehicles. He is also providing training to mechanics and works as a Senior Mechanic of a well-known organization. He is sharing his knowledge to support the car lovers to solve the vehicle issues.

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