Best Oil for Jeep 4.0 Engine – Top Reviewed Jeep Oil of 2020

Engine oil is like food for your engine. So you need to feed your engine with the best quality food (oil). There are different types of oils available in the market based on different needs. For example, engine oils based upon the warm and cold temperatures. The reason why in the earlier times people used to change oils and their types depending upon the weather was due to single-viscosity or thickness of the oils. 

So, one needed a different oil for winter and a different oil for summer. The lower the W number on oil, the better it functions in cold temperatures, and the higher the W number, the better it performs in the hot temperatures. However, now multi-viscosity oils are available, which contain special additives that help the oil thicken in a hot climate and thin up in cold climates. 

Best Oil for Jeep 4.0 Engine

Wondering which type of oil is the best for your Jeep 4.0 engine? Mentioned below are the listed 5 of the best oils for Jeep 4.0 engines along with their alternatives for summers and winters so that you can choose for yourself accordingly. 

  • Pennzoil 

Pennzoil is an American oil company that provides its customers with both full synthetic motor oils as well as conventional oils. It is the first company to produce motor oils from natural gas instead of crude oil. Given below are two of its products, one for hot temperatures and another for cold, respectively. 

1. Pennzoil Platinum 10W-30 

Pennzoil Platinum

Rating: 4.7/5 stars

  • It is the only synthetic oil which provides the engine with better wear protection from friction.
  • It is also formulated to provide faster low-temperature oil flow and protection in extreme heat. 
  • This product also helps the engine from loss of power by protecting your engine against wear and deposit formation.


2. Pennzoil Ultra Platinum 5W-30


Rating: 4.9/5 stars

  • It delivers unmatched sludge protection for helping to keep high performance.
  • It tends to keep the pistons substantially cleaner.
  • The product also provides the engine average, an extra 550 miles per year, i.e., provides a better fuel economy. 


  • Valvoline

Valvoline has always been at the forefront of innovation for providing its customers with a good quality engine oil for a smooth run. It is a leading supplier of premium DIY motor oils for over 150 years. Given below are two of its engine oils along with their features for hot and cold temperatures, respectively. 

3. Valvoline Advanced Synthetic 10W-30 


Rating: 4.8/5 stars

  • The product provides superb engine cleanliness with its varnish protection and superior sludge.
  • It also helps maintain fuel efficiency. 
  • It provides superior engine protection by fighting 3 significant causes of engine stress, which are heat, deposits, and wear. 


4. Valvoline 5W-30

Valvoline Advanced

Rating: 4.8/5 stars

  • It provides outstanding high-temperature protection under severely cold temperatures through its faster oil flow at start-up. 
  • It is formulated with more durative anti-wear additives that stay in the oil for a longer time. 


  • Castrol

Castrol offers a wide range of oils, greases, and other products for lubrication and serves every driver, motorcyclist, and industries with their products. Listed below are two of its products and features based upon the hot and warm temperatures. 

5. Castrol 10W-30


Rating: 4.8/5 stars

  • It is engineered with fluid titanium technology that physically changes the way that oil behaves under pressure.
  • The Castrol EDGE provides friction-reducing, anti-wear, and deposit control protection performance. 
  • It has a 42% better rating on fighting power-robbing deposits and also prevents oxidation. 


6. Castrol 5W-30

Castrol 03084

Rating: 4.8/5 stars

  • It provides maximum engine performance. 
  • It also reduces metal-to-metal contact across a range of different driving speeds. 
  • It protects the engine for the entire drain interval even under severe pressure. 


  • Royal Purple

Royal Purple is a lubricant manufacturer which is originally known for its range of synthetic motor oils products used in gasoline and diesel engines. It’s specially formulated oil maximizes performance and meets the high demands of modified engines. Given below are two of its products based upon warm and cold temperatures. 

7. Royal Purple 10W-30

Royal Purple

Rating: 4.8/5 stars

  • It gives better wear protection and increased fuel efficiency. 
  • It also provides better safety of the expensive catalytic emission system
  • This product also has improved compatibility with fuels containing ethanol. 
  • It also has superior corrosion protection. 


8. Royal Purple 5W-30

Royal Purple 51530

Rating: 4.8/5 stars

  • It delivers superior protection and performance in gasoline and diesel engines.
  • It’s API-licensed SN motor oil meets ILSAC GF-5 and Dexos-1 performance requirements. 
  • Royal Purple lubricants are fully compatible with mineral or synthetic oils.


  • Mobil 1 

Mobil 1 products are engineered to deliver performance and protection for engines and peace of mind for their customers. Their high-quality lubricants help to get the most out of vehicles. Given below are two of its products and their features based upon their use for hot and cold temperatures, respectively. 

9. Mobil 1 10W-30

Mobil 1

Rating: 4.8/5 stars

  • It has a stainless steel lock shutter to keep out dirt and moisture from the engines.
  • It maintains protection even when the oil level is over a quart below full and suggests no oil breakdown. 
  • It also has a 2-inch chrome-plated 5/16 inch diameter hardened steel shackle. 
  • It provides great lubrication. 


10. Mobil 1 5W-30

Mobil 1 120764

Rating: 4.7/5 stars

  • Its advanced full synthetic formula helps in preventing deposits and has a sludge build-up, which enables long engine life.
  • It has enhanced frictional properties.
  • This product aids fuel economy and has excellent low-temperature capabilities.
  • It also has quick cold-weather starting for ultra-fast protection and helps extend engine life. 
  • It provides outstanding thermal and oxidation stability. 
  • It has superb thickness control as well. 


So these were the top-rated recommendations for best quality motor oil for your Jeep 4.0 engine. The list is carefully made along with the best features of each product and their ratings as well. 

Which one is the best of all?

For us, Pennzoil full synthetic motor oil (10W-30 and 5W-30) is the best one. It is the only motor oil that is made from natural gas instead of crude oil. Their high-quality oil contains fewer impurities than other conventional oils and is suitable under all types of driving conditions.

Pennzoil is one of the most trusted brands, and their products maintain genuinity and provide high-speed performance to your engines. This oil gives you unbeatable engine protection and volatility control. It is ideal for stop-and-go driving, short trips, heavy loading, unpaved roads, and for dusty conditions as well. Pennzoil motor oil totally aces our list of top products!

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