6 Best Oil For 7.3 Powerstroke – (For Boost Performance)

Are you looking for good engine oil? Do you want your engine to perform better? If your answer is “Yes” to these questions, then you have reached the right place for this. We have worked on a way that will help you find the best oil for 7.3 powerstroke.

In a rush! check out the hotlist below for the Top-Rated Motor Oils For 7.3 powerstroke:

  • Shell Rotella T – 15W-40 Diesel Motor Oil
  • Shell Rotella T4 15W-40 Diesel Engine Oil
  • Shell Rotella T5 Synthetic Blend 10W-30 Diesel Engine Oil
  • Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil
  • Ford Genuine XO-15W40-5QSD SAE 15W-40 Motor Oil
  • Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil

If this interests you, then we will request you to read through this post right away.

Best Oil For 7.3 Powerstroke

As promised we have laid down names of the top-notch oil for 7.3 powerstroke in here.

Shell Rotella T – 15W-40 Diesel Motor Oil

The Shell Rotella T5 Synthetic Blend comes with additives and base oils that provide the engine with excellent protection. Look we are talking about Shell, which means we don’t need to say much. It is a name brand that needs no introduction and the Rotella T5 Synthetic Blend is a product that does wonders to 7.3 Powerstroke engine.

Most importantly, it works very well at low temperatures because it comes with improved cold-flow features. There is more to this and we will discuss all that in a while. At this point, we will like to add that these attributes have made major engine manufacturers approve of this 15W-40 oil.

The Rotella T5 Synthetic Blend indeed is an unrivaled product by Shell. It works well with new as well as old cars. This is yet another surprising fact about this oil. It can run a 40-year old car as efficiently as you can imagine. We have actually tried and we were astonished too. The point is there is no limitation for this oil, as it is versatile and can make the worst look like the best.

If you want to know more about this oil, then feel free to read the next section of this write-up. We promise, you will not regret it, and here is why:

Why Should You Get It?

  • Protection: As mentioned, it is a heavy duty oil with a synthetic blend and it provides the protection, as an SAE 15W-40 should. This means, you get better lubrication, lesser friction, and consistence in the viscosity of the oil. All this helps to increase the longevity of your engine.
  • Low Emission: This is the biggest reason why leading engine manufacturing companies trust this oil. It slow-ash formula has proven it to be top-rated engine oil. For it does not block, choke, and contaminate the exhaust. This helps it maintain low emission compliance and it meets US emission standards, by all means, owing to this property. This in turn aids it to keep the engine in good condition and clean.
  • Buildup Control: This brings us to discuss the fact that it can control deposits by 55% better than its counterparts. Now, this further implies that it enhances the engine’s health and protects it from oxidation. If truth be told, then we have to tell you that it curbs down wearing by 37% in comparison to others in this category. Yes, it goes beyond the CK-4 wear limitations and this makes it the best choice for 7.3 Powerstroke engines.
  • Usability:  Due to its heavy duty performance, it is highly recommended for agriculture, construction, highway vehicles, and pick-up trucks to name a few. In fact, most power driven vehicles that undergo a lot of stress and produce heat are advised to make use of the Shell Rotella T5 Synthetic Blend.

Keep In Mind

  • Gets dirty on usage, but the question is, which engine oil doesn’t

Shell Rotella T4 15W-40 Diesel Engine Oil

Earlier this used to be known as Triple protection, when it comes to looking for 7.3 Powerstroke oil capacity then is what you should be looking at in the long run. This is an advanced formulation to have hit the market. 

This engine oil utilizes the latest technology that adds protection to diesel engines. This keeps the system for emission control working properly. This also helps eliminate viscosity loss.

After using this oil regularly your engine will show a drastic improvement in resisting any oil breakdown when the temperatures are high. The oil helps the engines to run efficiently, stay clean, and run longer.

You may think that we have a favorite in Shell, but if you have 7.3 engine, then you will know that this is one the best options. Right from being affordable, performance, to availability makes Shell one of the most popular names in this business. Here is more on why we favor it.

Why Should You Get It?

  • Advanced Protection: This oil adds strong protection from oil breakdown, deposits, and wear. In other words, this oil for diesel engines offers protection to heavy engines to extend their life. The oil also eliminates oil oxidation for the engine to function better.
  • Better Emission Control: The engine oil enhances the control system for emission and it also accelerates oil aeration.
  • Improved Viscosity: This facilitates better shear stability, which then gives way to improved viscosity control. It also helps to maintain optimal pressure for the engine oil.
  • Advanced Technology: The advanced formulation utilizes additive technology. That offers superior cleanliness during oil drain.
  • Easy Usage: This oil is very easy to use the manual has all the required instructions that you can follow.

Keep In Mind

  • After using this for a while it tends to give out a strange odor like when oil gets burnt

Shell Rotella T5 Synthetic Blend 10W-30 Diesel Engine Oil

What is so good about this oil? Well, for starters it is a blend of advanced additives and synthetic oils that help to enhance the performance. The cold-flow technology makes sure that your engine can pack in a powerful performance even at the lowest temperatures. 

The oil is made using the latest technology that prevents oil breakdown, deposits, and engine wear-outs. The T5 incorporates a synthetic version as its base oil, this helps to enhance cold starting and cut down on the consumption of fuel.

Why Should You Get It?

  • Cost Saver: You can save at least 1.6% on fuel, which is a lot more than the standard 15W-40. This will help you hit a better bottom line.
  • Improved Wear Protection: With this oil, you can expect the wear protection to improve well beyond an interval crossing 50,000. The T5 offers the exact protection like any heavy viscosity oil. This oil also showcases better drain capabilities.
  • Advanced Formulation: The new formulation offers superior protection and eliminates any piston deposits, making sure of component and engine reliability during intervals of oil drain. The engine oil has is a low ash formulation that eliminates poisoning or blocking of the exhaust. 
  • Easy To Use: Using this will not be a problem as the manual has very clear instructions. Follow them and you will be able to get the best out of your engine.

Keep In Mind

  • Though the performance is not bad, but it is not exceptional either. Use it, but do not expect too much

Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil

If you are looking for a ford approved oil for 6.7 Powerstroke, then this is just right for you. What is so great about this engine oil? This is perfect for those vehicles that are powered by diesel engines that are compatible with SAE 5W-40. This oil is specifically created to combat viscosity loss and help maintain the right oil pressure.

The oil is made using additive technology, which adds extra protection from contaminants, dirt, and soot. The engine life is extended thanks to the synthetic oil blended in with the formulation. This certainly brings out the best from your engine.

Why Should You Get It?

  • Cost Saver: You can experience fuel economy by 1.5% in comparison to the conventional SAE 15W-40 oils.
  • Easy To Use: This is perfect for clutches with a wet plate. The other good thing is that it is readily available in all places. 
  • Good Performance: Even if the engine is cold this oil helps to start it without a glitch. Many motorcycle owners can vouch for this. You can experience smoother motorcycle transmission with this.
  • Fully Synthetic: Since the formulation is completely synthetic you will no longer have to depend on mineral oils, which can be expensive. 
  • Cost: You can buy a carton containing 3 gallons for a reasonable price.

Keep In Mind

  • This oil is perfect for ordinary riders; but is unsuitable for racers
  • You will experience fast engine  wrap up, but not as smooth as some expensive oils
  • The performance is just right for the money, but do not expect anything exceptional

Ford Genuine XO-15W40-5QSD SAE 15W-40 Motor Oil

This engine oil is very high-quality and it is perfect for heavy and light diesel engines. The oil is approved by Ford Company. This is highly compatible with Ford vehicles that are equipped with powerful engines. This oil fits in with the API category.

If you want to get the best performance out of your engines then this is what you should be looking at. This motor oil has already received tons of positive reviews from users all over the world.

The good thing about this is that it is perfect for trucks that travel more than 200,000 miles. The oil clears any deposits and sludges and keeps the engine in perfect working condition. This will never disappoint you in any way.

Why Should You Get It?

  • Performance: This keeps the engine squeaky clean at all times and enhances the performance.
  • Engine Life: The oil is specially created to make sure that the engine does not wear out very quickly.
  • Good value: The oil does not undergo a breakdown and it last for the exact period claimed by the manufacturer.

Keep In Mind

  • This oil is most suited for places with warm temperatures, other than that it has good performance

Valvoline Premium Blue SAE 15W-40 Diesel Engine Oil

There is no doubt that this oil will meet the requirements of your diesel engine. This oil is perfect for tucks that travel many miles together. This brand is has a reputation for its strong performance.

This is standard oil that works with both gasoline and diesel engines alike. If you like using conventional oil then you should settle for this without a doubt.

This oil offers resistance to any oxidation and makes sure that the engine runs smoothly. This oil has received positive reviews from customers so there is a high chance it might be the right product for you. So, do not hold back when it comes to this product.

Why Should You Get It?

  • Reliability: This oil is quite good and you can always rely on it to keep your engine in prime working condition. This is 100%manufactured in America.
  • Quality: In terms of quality this oil is quite conventional, but it is not a let-down at all.
  • Compatibility:  This is one aspect that you will never have to worry about with this oil.

Keep In Mind

  • Though the oil is very good, the company needs to include effective seals with the caps to prevent leakage of any kind

What Kind Of Oil Does A 7.3 Powerstroke Take?

If you want proper lubrication, maintenance, fuel efficiency, and heat protection, then you must go for the 5W-40 or 15W-40 oil. Yes, it must be quality oil and you must ensure that you know everything about it in advance.

How Often Should You Change Oil In A 7.3 Powerstroke?

This is something that you will have to find eventually on your own. The kind of vehicle you have will also determine the exactitude of this query. However, we can give you a cue for this and you can start with it.

Some 7.3 powerstroke synthetic oilmanufacturers will ask you to change it after 6,000 miles, but we say do it after 3,000 miles. Most will ask you to change it between 3,000 to 4,000 miles. So, 3,000 miles is our median and we stick to it.

4 Things To Consider When Buying the Best Oil For 7.3 Powerstroke

There is no denying the fact that your engine will work faster, smoother, and more efficiently with proper engine oil. So, finding the best oil for high mileage 7.3 powerstroke is no joke. You may find it overwhelming if you are doing it for the first time.

 Buying chart for 7.3 Powestroke oil

No worries, as we have got you covered for that too. Here are a few pointers that you may take into consideration while choosing a 7.3 Powerstroke oil.

1. Viscosity Levels

Viscosity is the thickness of the oil that helps the engine to perform efficiently.It also affects the functioning of the engines with changing weather conditions. With that said, we must agree that 5W-40is the most suited combination for 7.3 Powerstroke engines. It is moreresourceful and can also save fuel at the same time.

2. Follow The Manual

If you really want to understand the needs of your vehicle, then you must read the manufacturer’s manual. This will help you comprehend the requirements better and you will procure the right kind of fluid for your engine.

3. Blend

The composition is an integral part of engine oils and one must pay attention to it. You will come across three types of blends for this and they are – synthetic blend, semi-synthetic, and fully synthetic.

Both synthetic and semi-synthetic blends need to be mixed with other oils. Hence, they contain impurities, and the fully synthetic composition comes with additives but needs no mixing.

4. Additives

All premium quality oils contain additives and there are no doubts about it. This is done to maintain the liquid form and also reduce buildup in the oil. The best synthetic oil for 7.3 powerstroke will have additives that have anti-wearing properties, are corrosion-resistant, and high-quality dispersants.

Is 5w40 Better Than 15w40?

It is difficult to say which one is better as the two have different properties. The 5W-40has low viscosity and the 15W-40 is thicker. This means 5W-40 can start the engine faster and can lubricate it during the cold weather.

What Problems Does The 7.3 Powerstroke Have?

If you start counting problems of the 7.3 Powerstroke, then you may think otherwise. Things like overheating, frayed wires, failure of sensors, and regular getting stuck are a few of the many problems. Nevertheless, these engines are simple and the fixes for such engines are not that expensive.

What Happens If I Use 15w40 Instead Of 5w30?

If you tend to use 15W-40 over 5W-40, then you must be ready for more fuel consumption, as the oil flow getsagitated.In addition, expect more load on the crank of your engine. Don’t worry as it may not blow off your engine, but it will wear down the engine faster.

What Oil Is Recommended For Powerstroke Engines?

All the names that we have listed are the best oil for 7.3 powerstroke. Out of which theShell Rotella T5 Synthetic Blend 10W-30 Diesel Engine Oil seems to have more popularity. You are free to make your choice amidst all these names.

Can I Use Rotella T6 In My 6.7 Powerstroke?

Since, the Powerstroke engines belong to the Ford family, we have to say that the company very much approves the use of Shell Rorella for their engines. In fact, it is best suited for 6.7 Powerstroke engines.

What Oil Is Thicker 5w40 Or15W40?

Hands down, 15W-40 is thicker than the 5W-40. This is why 5W-40with low viscosity is considered to perform better than the 15W-40, especially at lower temperatures.

Is 5w40 Thicker Than 10W40?

To be precise, 5W-40 is thinner than the 10W-40 at low temperatures. Moreover, you can use the 5W-40 in place of a 10W-40 any time!

How Many Gallons Does A 7.3 Hold?

Depending on the truck’s wheelbase, a 7.3can hold 34 gallons or 48 gallons of fuel. Of course, 48 gallons can be found in heavy duty trucks only.

Relevant posts:

Final Words

We have provided you with a few names that are literally the best in this category. Nonetheless, we have a favorite and that would be the Shell Rotella T – 550045348 5 Synthetic Blend 15W-40 Diesel Motor Oil. It works fine with our vehicle and that is why we call the chosen one.

Let us know about your favorite through the comments section.

Who Worked on This?



I'm the guy responsible for ensuring that every blog post we publish is helpful for our reader.

Mahir Ahmed


I'm the guy responsible for ensuring honest, informative, accurate and helpful guide to the reader.

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