7 Best Oil for 7.3 Powerstroke 2021 [Reviews & Buying Guide]

Engine functionality & performance highly depends on oil quality. And only the proper fluid can induce further efficiency without safety issues.

For any 7.3 Powerstroke, getting the right oil is a must to retain the system performance. You know there are lots of choices available, but synthetic oil fits most vehicular specs.

And of course, not all the formulations are equal. It raises the obvious question while buying – Which one should I get for my 7.3 engine?

No necessary to look any further when you are in our article. In fact, we’ve enlisted the best oil for 7.3 Powerstroke with necessary details right away.

Check out the quick comparison before jumping into the in-depth reviews.

Best Oil for 7.3 Powerstroke – Comparison Table

Oil NameTypeViscosityKey FeaturePrice
Shell Rotella T6 Diesel Engine OilFull Synthetic5W-40Shear Stability
Liqui Moly 2041 Premium Motor OilFull Synthetic5W-40Improved Mileage
Schaeffer Supreme Engine OilFull Synthetic5W-40Low Volatility
Valvoline Premium Blue Extreme Engine OilFull Synthetic5W-40Drain Extension
Shell Rotella T5 Diesel Engine OilSynthetic Blend15W-40Low-Ash Formula
Mobil 1 Turbo Diesel Truck Motor OilFull Synthetic5W-40Excellent Lubrication
Rotella T Triple Protection Motor OilSemi-Synthetic15W-40Multi-Component Chemistry

 7 Best Engine Oil for 7.3 Powerstroke Reviews

After going through the quick comparison, let’s explore the in-depth reviews. Every single oil ensures maximized serviceability all along. Covering all the essential points, you’ll receive optimum satisfaction on the road.

1. Shell Rotella T6 Diesel Engine Oil

Shell Rotella T6 Diesel Engine Oil

Superior formulation promises increased performance for any 7.3 Powerstroke engine and Its one of the best synthetic oil for 7.3 Powerstroke.

The fully synthetic motor oil by Shell Rotella comes with advanced additives. And it’s Triple Protection Plus technology ensures initiates maximum engine protection.

In addition, the T6 diesel oil curtails viscosity loss to impart a better fuel economy. Of course, the 5W-40 liquid is perfectly compatible with exhausting emission controls.

Features & Benefits

  • Functional Technology

Its outstanding technical formulation offers maximum protection against wear, deposits & breakdown. In fact, the oil features effective additives prevent engine contaminants like soot & dirt. Again, continuous engine protection prevails at a suitable service interval.

  • Incredible Shear Stability

Low loss of viscosity triggers excellent shear stability for the powerful liquid. It helps the engine interior to generate & maintain optimal pressure. Also, the low-ash formula imparts sufficient control over vehicular emission compliance.

  • Excellent Fuel Economy

The fully synthetic 5W-40 ensures superior durability for 7.3 diesel engines. An overall increase in fuel efficiency offers a low cost of fuel in the long run. As it happens, the best oil for high mileage 7.3 Powerstroke can save about 1.5% of your fuel cost.


  • Heavy-duty liquid formulation.
  • Protective, dispersant additives.
  • Optimum internal pressure.
  • Reasonable service intervals.


  • Oil may contain smaller debris.


2. Liqui Moly 2041 Premium Motor Oil

Liqui Moly 2041 Premium Motor Oil

The latest engine servicing concepts ensure perfect satisfaction even for the highest demand.

German Liqui Moly introduces an exclusive oil formula to serve your 7.3 engine. In fact, the premium motor oil is compatible with diesel & gasoline systems.

The 2041 liquid provides instant lubrication of inner parts following a cold start. The high-tech 5W-40 formula triggers a fuel-saving yet powerful engine action.

Features & Benefits

  • Highly Technical Formula

The high-end liquid includes fully synthetic based oil with powerful additives. With the latest engine concepts, the premium formula conserves the overall engine functionality. Its Synthoil blend ensures instantaneous lubrication of internal gears.

  • Maximum Engine Safety

It comes with a 5W-40 viscosity rating to withstand extreme weather conditions. Resisting wear & buildup, your engine experiences superior cleanliness. At lower temperatures, the liquid imparts fast, smooth & safe startup.

  • Outstanding Compatibility

The 5L jug ensures optimum serviceability on longer drives. For the best, it remains usable with any specified diesel & gasoline engine. High changing intervals will definitely save your time & fuel cost.


  • Premium quality formula.
  • Extended change intervals.
  • Highly protective actions.
  • Incredible engine usability.


  • Slight issues at low temp.


3. Schaeffer Manufacturing Supreme Engine Oil

Schaeffer Manufacturing Supreme Engine Oil

The high-quality engine formula excellent oil pumpability with superb cold cranking.

Schaeffer Manufacturing brings in one effective & functional blend of powerful additives. It encourages overall engine performance without affecting the fuel economy.

In fact, the specialized lubricant reduces engine wear to offer excellent cleanliness. Meanwhile, thermal stability & high shear protection easily withstand harsh weather conditions.

Features & Benefits

  • Superb Engine Cleanliness

It’s indeed the best winter oil for 7.3 Powerstroke with a higher viscosity index. It features encouraging detergency with excellent dispercency. Rapid circulation inside triggers sufficient pumpability,m resisting quick aging of the formula.

  • Great Protective Measures

Supreme 9000 liquid comes with a reasonable 5W-40 viscosity to prevent thickening & wear buildup. Flowing easily all along, the formula imparts outstanding startup protection. In fact, a lower friction coefficient prevents soot overloading.

  • Low Volatile Characteristics

The reduction of oil consumption prevails, thanks to lower volition. It lets the engine function perfectly without costing much. Again, high shear stability with thermal protection keeps the formula usable on extreme conditions.


  • Powerful, lubricating formula.
  • Exceptional thermal stability.
  • High viscosity but low friction.
  • Outstanding inner cleanliness.


  • Issues with the delivered package.


4. Valvoline Premium Blue Extreme SAE Engine Oil

Valvoline Premium Blue Extreme SAE Engine Oil

The exclusive endorsement of premium engine oil delivers performance with protection.

Valvoline’s SAE formula promises exceptional quality over extended serviceability. Its high-end technology satisfies the stringent requirements of modern diesel systems.

The synthetic liquid ensures improved control over fuel consumption. And its standard 5W-40 rating encourages safe & quick engine startup during cold weather.

Features & Benefits

  • Premium Lubricating Oil

Its exclusive formulation imparts quick lubricating capability for engines. The synthetic-based oil is suitable for on & off-highway uses. The featured Dispersive Polymer Technology (DPT) enables Diesel Particulate Filters (DPF) & Exhaust Gas Recirculation (EGR).

  • Highly Protective Action

The liquid contains powerful oxidation, corrosion & foam inhibiting additives. Also, the built-in valve train protection curtails soot, wear & carbon buildup. Thanks to its TBN retention, you’ll receive an all-weather functionality.

  • Enhanced Fuel Efficiency

With 5W-40 viscosity, the oil gives a 10000-mile drain extension. And the average fuel efficiency reaches 6.5 MPG or even higher. It means you’ll have better mileage over low fuel consumption.


  • Superb thermal stability.
  • Powerful additive action.
  • Improved fuel economy.
  • Great deposit protection.


  • Poor sealing of the container.


5. Shell Rotella T5 Diesel Engine Oil

Shell Rotella T5 Diesel Engine Oil

Everything you’d expect from a high-quality engine oil meets the satisfaction right here.

In fact, Shell Rotella brings in advanced additives for synthetic oil. Its superior protection ensures increased serviceability, long-lasting life & greater cleanliness.

The T5 offers excellent usability over the recommended oil changing interval. Sustained emission control results in filter durability with effortless after-treatment action.

Features & Benefits

  • TPP Functionality

Like other Shell Rotella oils, the formula contains a high-performing Triple Protection Plus technique. It triggers optimum resistance against deposits, wear & accidental breakdown. In the meantime, emission control encourages superior durability for the inner system.

  • Excellent Protection

Not to mention, the fluid comes in a reasonable SAE 15W-40 rating. The synthetic blend ensures low-temperature flow, maintaining viscosity under high heat. Quick lubrication & less friction delivers enhanced longevity for engine parts.

  • Superb Usability

Going beyond CK-4 specifications, you’ll definitely enjoy its unrivaled usability on vehicles. Of course, the best diesel oil for 7.3 Powerstroke is easily compatible with several popular models.


  • Premium synthetic blend.
  • Consistent viscosity control.
  • Encouraged engine action.
  • Satisfactory drain intervals.


  • Oil gets somewhat dirty.


6. Mobil 1 Turbo Diesel Truck Motor Oil

Mobil 1 Turbo Diesel Truck Motor Oil

Practically engineered formula to reserve the performance & efficiency of diesel engines.

The purely synthetic oil by Mobil 1 is the best winter oil for 7.3 Powerstroke and ensures increased functionality for hard-working diesel systems. Meeting CJ-4 standards, it remains suitable for both light & heavy-duty equipment.

Additional Supersyn initiates consistent viscosity for shear stability & film strength. Its SAE 5W-40 rating reduces the chance of bore polishing & engine scuffing.

Features & Benefits

  • Powerful Formulation

The motor oil comes with high-end composition to serve diesel engines. Its fully synthetic formula imparts excellent wear resistance to improve overall durability. Also, you’ll get control over oil consumption, preserving efficiency.

  • Functional Supersyn

The patented fluid contains Supersyn to prevent unwanted buildup inside. In fact, the additive triggers excellent temperature stability for safe, quick startup. Even for turbo-charged engines, sufficient film strength prevents high-temp deposit & low-temp sludge.

  • Superb Applicability

The liquid passes all the industry standards including CJ-4, CI-4 & CH-4. In fact, its latest lubricating functionality easily suits global specifications. Therefore, the oil is highly recommended for Ford, Dodge, GMC, General Motors.


  • Increased engine durability.
  • Powerful, functional additive.
  • Good engine compatibility.
  • Excellent interior cleanliness.


  • Poor design of the container.


7. Rotella T Triple Protection Motor Oil

Rotella T Triple Protection Motor Oil

Unrivaled protection prevails for both engine parts & its overall on-road performance.

From Shell Rotella, it’s indeed one ergonomic choice to ensure increased performance. Likewise, it offers optimal protection against minimal deteriorating issues.

Its powerful chemistry imparts excellent serviceability along with the Triple Protection technique. The CJ-4 standardized formula delivers equal efficiency over on & off applications.

Features & Benefits

  • Triple Protection Fluid

Just like its other oils, the 550019913 formula features active triple protection technology. The fluid particularly focuses on 3 critical engine facts. You can control the acid corrosion, temperature deposit & metal wear.

  • Effective Formulation

Thanks to the energized composition, you can use the oil for both off & on-highway vehicles. In fact, the chemistry comes with a 30% increase in functionality. It results in up to 38% reduction in wear over 40 million miles of the drive.

  • Increased Performance

The best engine oil for 7.3 Powerstroke here simply meets or even exceeds API CJ-4 standards to ensure further performance. Through a powerful & convenient emission system, it fits modern & old systems.


  • Superb control over the engine.
  • All-around protection formula.
  • Simple lubrication of parts.
  • Excellent usability on roads.


  • Leakages on the container.


How to Choose Right Oil for 7.3 Powerstroke?

All the available oils aren’t equal in terms of functionality & efficiency. Taking your vehicular engine into account, you’ll have to feed the righteous formula.

But making the choice is never easy with lots of variations. For getting the best oil for 7.3 diesel, you’ll have to focus on the following facts.


The most important consideration lies with engine specs. Unless the oil is suitable for your engine, it’s of no use. Instead, it may cause severe issues with the overall functionality. In fact, there are several types of engines, even for 7.3 systems.

You’ll have to go through the car manual to understand if the intended oil is suitable or not. Obviously, the chosen formula has to come with producer recommendations. Sometimes, the manual lacks the information & that’s where you need to contact the manufacturer.


Coming to the oil itself, there are significant differences between the formulation. Though all the best diesel oil for 7.3 Powerstroke includes synthetic composition, there are variations. There are 3 particular types you can get – fully synthetic, semi-synthetic & synthetic blend.

Full synthetic features base oil with additives, no additional oil mixes. But semi-synthetic & synthetic blend comes with a mixture of different oils. Unlike the pure one, the latter two contain impurities.


It’s indeed the ultimate parameter to understand the oil thickness. The overall thickness changes in accordance with the working temperature. And therefore, it directly affects engine performance in adverse or extreme weather conditions.

For 7.3 Powerstroke oil viscosity, it’s better to use 5W-40 fluids than anything else. Aside from extended operating temperature, it helps to save the fuel economy.


The oil can barely prevent unwanted buildup inside the engine parts. However, most of the premium oils include several additives to induce detergency characteristics.

Of course, not all the additives are helpful in equal extent. The best oil additive for 7.3 Powerstroke includes corrosion inhibitors, anti-wearing agents, powerful dispersants, effective antioxidants, etc.

Frequently Asked Questions

Q: How to get better fuel mileage in a 7.3 Powerstroke?

Answer: Actually, there are several means to improve fuel mileage. But the process is not very easy. For getting better mileage from any 7.3 Powerstroke synthetic oil, you better follow the steps –

  • Lowering the wind resistance on the drive.
  • Replacing & cleaning the existing air filter.
  • Maintaining the service system frequently.
  • Establishing proper, consistent tire inflation.
  • Keeping the vehicle light unless necessary.

Q: What’s 7.3 Powerstroke oil capacity?

Answer: The fluid capacity basically depends on car specifications. In fact, different 7.3 Powerstroke models call for different oil capacities. But considering the standard, the capacity measures 15 quarts along with filter changes.

Q: How often should you change oil in a 7.3 Powerstroke?

Answer: The changing oil interval comes with no strict regulation. It’s quite dependable on the vehicle type as well. Even expert & manufacturer recommendation varies to a noticeable extent. But the basic interval lies within every 3000 – 7000 miles. Regarding 7.3 oil change, you can consider replacement on every 5000 miles run.

Final Words

Unlike any other, synthetic oils have become a widely accepted standard for modern hard-working engines. And of course, you’ll get an increase in performance when you have the best oil for 7.3 Powerstroke.

Among the aforementioned ones, Shell Rotella T6 Diesel Engine Oil seems the best synthetic oil for 7.3 Powerstroke. The fluid is ready to prove its worth through an unparalleled functionality with minimal issues. It offers improved engine efficiency, cutting down your fuel economy.

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