The 7.3 Powerstroke is a high-quality engine that requires the best products to maintain its performance. However, many products may seem like the ideal product for your vehicle but can lead to poor performance. To save you from researching every suitable product on the market, I have prepared a comprehensive list along with the pros and cons of the recommended products, which will help you make an informed decision.  

10 Best Oil for 7.3 Powerstroke

Shell Rotella 15W-40 Diesel Engine Oil – T5 Synthetic Blend

Key Details:

  • Manufacturer: Rotella
  • Style: Synthetic Blend
  • Viscosity: 15W-40
  • Liquid Quantity: 128 Fluid Ounces

The Shell Rotella T5 Synthetic Blend motor oil is the first product on our list. It is one of the best products for the 7.3 Powerstroke engine and can help improve the performance of the vehicle and combat any pre-existing problems. This is a huge benefit. 

The product performs excellently in cold temperatures and helps in reducing friction damage. It helps in preventing damage to the critical engine parts by improving the overall strength of the vehicle. It also works exceptionally well under hot temperatures. The product helps in reducing the problem of LSPI.

The product has up to 37% better wear protection (as per the API CK-4 requirements.) It also has an advanced additive technology that aids in reducing the problem of oil breakdown and deposits in the engine. It also helps in reducing the overall oil consumption in the vehicle, which can save the owner a significant amount of money.

The only problem with the product is that it is a synthetic blend motor oil instead of full synthetic motor oil. This means the product has shorter drain intervals and requires more oil changes. It meets the API CK-4, CJ-4, CI-4, CI-4 PLUS, H-4 requirements are ideal for heavy-duty engines.


Pros
  • Good cold temperature performance
  • Improved engine cleanliness
  • Reduces fuel consumption
  • 37% better wear protection
Cons
  • Not full synthetic

FORD Motorcraft Super Duty 15W-40 Diesel Oil

Key Details:

  • Manufacturer: Ford
  • Style: Super Duty Diesel
  • Viscosity: 15W-40
  • Liquid Quantity: 160 Fluid Ounces

The Ford Super Duty Diesel is the next product on our list. It has been manufactured by Ford, especially for all vehicles by the same manufacturers. The product is one of the best options available in the market for the 7.3 Powerstroke engine and greatly improves the vehicle’s performance.

The product is ideal for older models and helps in reducing pre-existing problems. It helps in decreasing the overall engine noise and helps in achieving a smoother driving experience. It also has greater protection against the problem of wear in the engine by improving the overall engine cleanliness.

The product has been designed with premium hydro base oils which improve the overall performance. It helps in enhancing the overall fuel economy in Ford vehicles and helps the owner in reducing the overall expenses. It also has extended drain intervals and can cover longer distances before requiring oil changes. 

It meets the API Service CJ-4 requirements and is recommended by Ford for its usage in the Powerstroke engine.


Pros
  • Perfect for Ford vehicles
  • Excellent protection for older engines
  • Improves fuel economy
  • High quality wear protection
Cons
  • Not recommended for engines with catalysts

Shell Rotella 5W-40 – T6 Synthetic Blend Diesel Engine Oil

Key Details:

  • Manufacturer: Rotella
  • Style: Full Synthetic
  • Viscosity: 5W-40
  • Liquid Quantity: 128 Fluid Ounces

The Shell Rotella T6 Full Synthetic Motor oil is yet another product manufactured by Rotella on the list. This product shares a lot of similar characteristics with the previous product on the list, however, is an overall better product as it is a full synthetic motor oil. It Is perfect for the 7.3 Powerstroke engine.

The product improves the overall fuel economy of the vehicle by 1.5% (when compared to SAE 15W-40 motor oils.) It helps in enhancing the performance of the vehicle and can greatly reduce the problem of wear, which is extremely common in modern-day diesel engines.

The product works excellently under cold temperatures and reduces the problem of LSPI and poor start-ups. On the contrary, under high temperatures, the vehicle works exceedingly well and helps in reducing the damage which may be caused to the engine due to the excessive heat it undergoes.

The product is equipped with a special triple-protection plus formula that reduces the problems of wear, deposits, and oil breakdown under extreme conditions. A common problem associated with the product is that the container has been made out of poor-quality material which makes it prone to oil leaks.

It meets the API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4 requirements and is a great choice for heavy-duty engines like the 7.3 Powerstroke.


Pros
  • Improves fuel economy by 1.5%
  • Enhances engine performance
  • Prevents engine breakdown
  • Protects the engine in extreme temperatures
Cons
  • Leaky containers

Valvoline Premium Blue – SAE 15W-40 Diesel Oil

Key Details:

  • Manufacturer: Valvoline
  • Style: Premium Blue Heavy Duty
  • Viscosity: 15W-40
  • Liquid Quantity: 3 Gallons

The Valvoline Premium Blue Diesel engine oil is the next product on our list. It has been manufactured by Valvoline and helps in improving the performance of the vehicle. The product has been endorsed and is recommended by Cummins Inc.

The product can resist deposits and sludge which if accumulated at excessive levels can inflict serious damage to the engine and can cause serious complications in the overall performance. It also has an extremely affordable price and is a good alternative for customers who are looking for an economical option. 

The product also has an increased level of protection against the problem of wear and helps in achieving a smoother driving experience. The only problem associated with the product is that it has a poor packaging material and can result in expensive repairs in the engine.

It meets the API CK-4, CJ-4, CH-4, CI-4, CI-4 PLUS, SP, SN requirements and is a good product for the 7.3 Powerstroke engine. 


Pros
  • High quality wear protection
  • Prevents corrosion
  • Affordable price
  • Reduces sludge and deposits
Cons
  • Bad packing material

Schaeffer Manufacturing SynShield 15W-40 Diesel Engine Oil

Key Details:

  • Manufacturer: Schaeffer Manufacturing Co.
  • Style: SynSheild Durability Advantage Synthetic Plus 
  • Viscosity: 15W-40
  • Liquid Quantity: (1 Gallons) x6

The Schaeffer Manufacturing Co. Durability Advantage Synthetic motor oil is the next product on our list. The product provides an excellent level of protection to the engine from the problem of wear, especially under extreme conditions which is a massive benefit. 

Despite not being an extremely popular brand than some of the other products, this product is known for its ability to fight off the corrosive properties that can be found in modern-day engines. This can lead to permanent damage to the engine and even cause breakdowns.

The product provides great performance under high temperatures and can resist oil/viscosity breakdowns. The product also reduces the overall friction in the engine which can lead to a deterioration in the life of the engine. A problem associated with the engine is that it sometimes can lead to excessive engine noise. 

It meets the API CK-4 requirements and is provides satisfactory performance in the 7.3 Powerstroke engine.


Pros
  • Great performance under extreme conditions
  • Prevents oxidation
  • Increased wear protection
  • Reduces friction
Cons
  • May increase engine noise

Royal Purple 15W40 Duralec Super Synthetic Oil

Key Details:

  • Manufacturer: Royal Purple
  • Style: High-Performance Synthetic
  • Viscosity: 15W-40
  • Liquid Quantity: 128 Fluid Ounces

The Royal Purple High-Performance Synthetic motor oil is an excellent product manufactured by Royal Purple. It has been designed especially for the 7.3 Powerstroke and helps in not only improving the performance of the vehicle but also fights off the pre-existing problems.

The product has improved performance under high temperatures. It also helps in reducing the overall damage that can be caused to the engine by creating thicker lubrication around the necessary parts. It helps in improving the fuel efficiency of the vehicle.

The product is ideal for diesel engines. It helps in reducing sludge and deposits in the engine by improving the overall cleanliness. A drawback of the product is that it has an expensive price tag when compared to some of the other products mentioned on the list.  

It meets the API SN, ILSAC GF-5 requirements and is better compatible with fuels that contain ethanol.  


Pros
  • Greater wear protection
  • Reduces damage to catalytic emission system
  • Improves fuel efficiency
  • Perfect for diesel engines
Cons
  • Expensive product

Delo 15W40 Synthetic Blend Oil

Key Details:

  • Manufacturer: Chevron
  • Style: Synthetic Blend
  • Viscosity: 15W-40
  • Liquid Quantity: 1 Gallons

The Delo Synthetic Blend motor oil is the next product on our list. It has been designed by Chevron, especially for heavy-duty diesel engine oils. It is a good product for the 7.3 Powerstroke and improves the overall performance of the vehicle. Moreover, it also reduces the engine’s common problems.

The product has improved protection against the problem of wear. If the problem is left untreated for a long time, then it can cause some serious complications in the overall performance of the vehicle and even cause permanent damage. It helps in extending the life of the engine.

The product also helps in improving the cleanliness of the piston drastically and can help in achieving a smoother driving experience. It helps in fighting off the problem of corrosion which can result in inferior performance. The only common problem associated with the product is that it has a poor-quality container. 

It meets the API SN, CJ-4, CI-4 PLUS, CK-4 requirements and would be a good choice for the 7.3 Powerstroke.


Pros
  • Improved wear protection
  • Extends engine life
  • Reduces deposits in pistons
  • Better protection against corrosion
Cons
  • Poor quality container 

Mobil Super 15W40 Diesel Engine Oil

Key Details:

  • Manufacturer: Mobil 1
  • Style: Delvac 1300 Super Conventional
  • Viscosity: 15W-40
  • Liquid Quantity: 128 Fluid Ounces

The Mobil Super Delvac 1300 Motor oil is another good product. It has been manufactured by Mobil 1 who are well known for their high-quality products for all engines types. However, despite their reputation, this product would not be a good option for the 7.3 Powerstroke engine.

This is due to the fact that it is conventional motor oil and is easily outmatched by most of the products on this list which are either synthetic blend or fully synthetic oils. It lacks a vast variety of benefits the other products will provide you with, despite being extremely affordable.

The product has shorter drain intervals and requires frequent oil changes, around every 3,000 miles. On the contrary, the product cleans the engine well and can provide a decent level of stability to the engine. It also decreases wear in the engine. 

The product performs well under high temperatures. It exceeds the API CJ-4, CI-4 PLUS, CH-4 requirements and is decent for new engines.  


Pros
  • Higher heat protection
  • Reduces wear
  • Cleaner engines
  • Good for cold temperatures
Cons
  • Not full synthetic

AmazonBasics Synthetic 5W40 Diesel Oil

Key Details:

  • Manufacturer: Amazon Basics
  • Style: Full Synthetic
  • Viscosity: 5W-40
  • Liquid Quantity: 32 Fluid Ounces

The AmazonBasics Full Synthetic Motor oil is an excellent product designed by Amazon, especially for European-based vehicles. This product is well suited for the 7.3 Powerstroke engine and enhances the performance of the vehicle. It has extended drain intervals that help cover larger distances in comparison to some other products.

The product fights off the problem of wear extremely well and helps in reducing the overall damage it can cause. It has an increased protection against the problem of corrosion. This can be lethal for the engine and can make the critical engine parts deteriorate in quality.

The product has an increased resistance against the problem of oil/viscosity breakdown. This is achieved by the increased strength it provides to the engine. The only problem consumers have reported is that the container has been made out of an inferior material which makes it prone to leaks.

It meets the API SN, SL requirements and is ideal for turbocharged vehicles.


Pros
  • Decreases wear
  • Greater resistance to breakdown
  • Improved protection against corrosion
  • Extended drain intervals
Cons
  • Inferior container quality

LUCAS CJ-4 Synthetic SAE – 15W40 Engine Oil

Key Details:

  • Manufacturer: Lucas Oil
  • Style: Synthetic 
  • Viscosity: 15W-40
  • Liquid Quantity: 1 Gallon

The Lucas oil Synthetic motor oil is the last product on our list. It has been designed at Lucas oil and provides greater lubrication to the sensitive engine parts and protects them from heat damage. It is a good product for the 7.3 Powerstroke engine and helps in improving performance.

The product has higher protection against the problem of wear which is extremely common in modern-day engines. This problem if left untreated can deteriorate the overall quality of the engine, and in some cases can also leave permanent damage. It has an affordable price tag.

The product works very well in both gasoline as well as diesel-based engines. The product also helps in reducing the oil consumption in the vehicle which saves the owner a significant amount of money. A common problem associated with the product is that it can be easily outperformed by a lot of the full synthetic motor oils mentioned on this list.

It meets the API CJ-4 requirements and has been designed in the United States of America.


Pros
  • Reduces oil consumption
  • Fights off wear
  • Works in diesel and gasoline engines
  • High lubrication to prevent damage
Cons
  • Outperformed by other competitors

Oil Buying Guide for 7.3 Powerstroke

The Viscosity

This is perhaps the most important detail you have to understand before purchasing any oil. Thinner oil types are more suitable for colder conditions which can help in improving performance by reducing the problem of poor start-ups. On the other hand, thicker motor oils are better for hotter conditions as they protect the engine from excessive damage and breakdowns. 

The 7.3 Powerstroke recommends using a 15W-40 viscosity for temperatures above 10 degrees Fahrenheit and temperatures below 30 degrees Fahrenheit, it is recommended to use 5W-30 motor oil.

The Oil Type

The next important detail is the oil type. There are 3 major types of motor oils available on the market – conventional, synthetic blend, and full synthetic oils. Conventional motor oil provides a standard performance to your vehicle and has an extremely affordable price tag.

The synthetic blend motor oils provide your vehicle with a slightly improved performance and have a few additional benefits and due to the same reason, it is more expensive than conventional motor oil. Lastly, fully synthetic motor oil is the best out of the three. It provides your vehicle with a great performance and has a vast variety of benefits to your vehicle.

The full synthetic motor oil is the costliest product out of the three. The 7.3 Powerstroke recommends using either a full synthetic or synthetic motor oil.

Additional Features

If all of the above-mentioned details could not help you in making a decision, then perhaps paying close attention to their extra benefits might help. For instance, if your vehicle has developed a problem of excessive engine noise, then using a product that reduces that problem is the best option.

Frequently Asked Questions

The 7.3 Powerstroke has a viscosity of 15W-40 for temperatures above 10 degrees Fahrenheit and 5W-40 is recommended for temperatures below 30 degrees Fahrenheit.

The 7.3 Powerstroke recommends using a full synthetic or synthetic blend motor oil.

The 7.3 Powerstroke recommends using either genuine Ford or Shell Rotella products.

The 7.3 Powerstroke engine has an oil capacity of 15 Quarts.

It is recommended to change oils every 7,500 – 10,000 miles for the full synthetic oils. On the other hand, while using a synthetic blend motor oil, oil should be changed every 5,000 miles.

The Verdict

The 7.3 Powerstroke engine is a heavy-duty engine and recommends using a full synthetic motor oil with a viscosity of 5W-40 or 15W-40. The Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil and the Shell Rotella T – 550045348 5 Synthetic Blend 15W-40 Diesel Motor Oil are good options available in the market for this vehicle. On the other hand, if you are looking for a product by the manufacturers of the vehicle, then the 1. Ford Genuine XO-15W40-5QSD SAE 15W-40 Super Duty Diesel Motor Oil would be a fine choice.

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