8 Best Synthetic Oil for Ford 6.7 Diesel [Top Picks & Reviews]

The appropriate functionality of the vehicle engine is highly dependent on oil quality. In fact, a high-quality fluid has to run the system without any potential risk.

That’s where synthetic oil comes in the first place for 6.7 Powerstrokes. This particular oil type can withstand the engine’s immense pressure & heat rather easily.

But you know finding the best synthetic oil for Ford 6.7 Diesel isn’t easy as it may sound. You’ll have to spend hours finding the perfect match within a reasonable budget.

Skip all the hassles & your troublesome search right away. Want to know why?

Because we’ve brought the most preferable choices for synthetic oil that you can consider within budget.

Now, before going inside the detailed review, let’s have a look at the quick comparison.

Best Synthetic Oil for Ford 6.7 Diesel – Comparisons

Oil Name Viscosity Type Key Feature Price
Shell Rotella T6 Diesel Engine Oil 5W-40 Full Synthetic Shear Stability
Ford Fluid Super Duty Diesel Motor Oil 15W-40 Synthetic Blend Branded Formula
Schaeffer 0700CK4-006S Diesel Oil 15W-40 Semi-Synthetic Contamination Control
Ford Genuine Fluid Diesel Motor Oil 5W-40 Full Synthetic Wide Temperature Action
Lucas 10299-PK4 Truck Oil 15W-40 Full Synthetic Great Compatibility
Valvoline Premium Blue ES SAE Engine Oi 15W-40 Synthetic Blend DPT Technology
Shell Rotella T5 Diesel Engine Oil 15W-40 Synthetic Blend Extended Drain Interval
Delo 400 SDE SAE Motor Oil 15W-40 Full Synthetic Sulfur Diesel Fuel

Best Oil For 6.7 PowerStroke -Reviews

Following the comparison table, let’s take a look at the in-depth review of our top choices. We covered the essential facts which will surely help you to pick the ultimate one.

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

Shell Rotella T6 Full Synthetic Diesel Engine Oil

The specifically formulated generic oil ensures excellent engine protection & fuel economy.

Its Triple Protection Plus technology prevents deteriorating deposits, wear & oil breakdown. The oil consumption rate gets decreased & therefore; it saves fuel cost.

It’s our Highly Recommended Oil For 6.7 PowerStroke with shear stability to sustain interior oil pressure. In addition, the advanced formula helps to maintain vehicular emission compliance.

Features & Benefits

  • Improved Engine Functionality

Shell Rotella T’s most advanced formula combines multi-functional dispersant additives with its fully synthetic base oil. The combo initiates a further level of engine protection. Whether its soot, dirt or other contaminants, your engine retains full efficiency.

  • Reduction in Fuel Consumption

The T6 heavy-duty oil prevents oil breakdown inside the chamber to a great extent. It not only offers service interval protection but also cuts down the fuel cost. In fact, the 5W-40 oil can save 1.5% cost in comparison to 15W-40 oils.

  • Highly Stabilized Formulation

Its low-ash formulation lets you control poisoning/blocking of exhausting devices. While maintaining vehicular emission compliance, the fluid also encourages fuel efficiency. The shear stability resists viscosity loss to hold optimal oil pressure.


  • Enhanced engine action.
  • Improved fuel economy.
  • Superb heat resistance.
  • Quite advanced formula.


  • Slight leak may occur.

2. Ford Fluid 15W-40 SAE Super Duty Diesel Motor Oil

Ford Fluid 15W-40 SAE Super Duty Diesel Motor OilImpart a new functional life for the Powerstroke 6.7 diesel engines of Ford vehicles.

The high-quality Motorcraft oil is particularly formulated to use in Ford engines. The super duty formula even meets the API Service CJ-4 standard. This one is ford recommended oil for 6.7 powerstroke.

It features a protective combo of ultralow sulfur fuel with particulate filters.  Of course, you’ll receive continuous engine protection throughout the servicing intervals.

Features & Benefits

  • Unique Oil Formulation

The Ford Company itself combines diesel particulate filters with ultralow sulfur fuel. Its high-end output is specifically good for heavy-duty applications. Whether it’s a bus, truck, construction or even agriculture – the Ford fluid promises optimum efficiency.

  • High Protective Measure

The 15W-40 oil has sufficient viscosity to support the engine at mediocre temperatures. In fact, it remains functional without freezing inside the engine over 20°F or -7°C. The fluid also develops an excellent resistance to internal heat.

  • Good Engine Suitability

Its ergonomic blend simply enhances the overall performance of modern engines. Meanwhile, the additives are ready to power up & support older engines. Using the brand-specified liquid will retain the functional efficiency for suitable engines.


  • Excellent engine lubrication.
  • Almost no wear/corrosion.
  • Brand-specified formulation.
  • Premium, unique oil blend.


  • Somewhat expensive pack.


3. Schaeffer 0700CK4 SynShield Durability Advantage 15W-40 Diesel Oil

Schaeffer SynShield Durability Advantage Diesel OilOvercome all the harshest & extreme engine conditions with higher output.

The CK-4 by Schaeffer’s SynShield lets you handle all dirt, mud, temperature & corrosion issues. Soot-busting & deposit-dispersing reaches its peak through the integrated, powerful additives.

The best diesel oil for 6.7 Powerstroke here promises to reduce oil consumption. Its effective low-ash formulation triggers better control over engine contamination.

Features & Benefits

  • Quite Powerful Formula

Its patented SynShield technology includes a modified formula for lowering internal friction. In fact, the inclusion of Micron Moly & Penetro helps to maintain consistent lubrication. Less friction & therefore, fewer heat results in low consumption of diesel oil.

  • Superb Oil Performance

The high-quality, blended synthetic initiates superior durability for the engine. The synthetic plus formula by Durability Advantage gives strong oxidation & moderate viscosity. High resistance to breaking down allows the system to retain maximum efficiency.

  • Good Engine Protection

Additional detergency additives trigger a faster soot-busting, deposit-dispersing action. It develops protection against foaming, aeration & abrasive wear. Your Ford 6.7 engine gets maximized oil support throughout withstanding severe weather conditions.


  • Superb weather protection.
  • High contamination control.
  • Enhanced wear resistance.
  • Prolonged oil serviceability.


  • Limited engine compatibility.


4. Ford Genuine Fluid 5W-40 SAE Diesel Motor Oil

Ford Genuine Fluid SAE Diesel Motor OilThe viscous & thick synthetic oil promises to reduce deteriorating engine friction.

A 5W-40 rating keeps the fluid functional in a wide range of working temperatures. Although it’s suitable for newer engines only, it gives superb efficiency.

Unlike the previous Ford oil, it meets all the requirements for Ford Diesel engines. The oil lets you tackle any unexpected issue with Powerstroke engines.

Features & Benefits

  • Reasonable Compatibility

The fully synthetic formulation triggers improved efficiency for newer engines. Not to mention, its Motorcraft action meets the low, reduced emission specs. Thanks to the brand-specified liquid, your diesel engine will retain the overall functional efficiency.

  • Enduring Serviceability

It promises to meet strict requirements of 6.7 Powerstroke without any compromise. The effective oil is indeed a durable replacement of your Ford diesel engine fuel. It helps to maintain original performance on the road since the very beginning.

  • Quite Functional Viscosity

It comes with a rather unique 5W-40 rating regarding the viscosity. Therefore, the thick fluid has sufficient viscosity to resist heat & weather actions inside. Of course, it remains functional without freezing from -20°F to 100+°F temperature.


  • Specified for brand vehicles.
  • Excellent viscosity of base oil.
  • Durable support for engine.
  • Incredible cleaning efficiency.


  • Unsuitable for older engines.


5. Lucas 10299-PK4 Synthetic Truck Oil

Lucas Synthetic Truck OilWhether it’s older engine or new – enjoy increased mileage meeting the specs.

The 10299-PK4 CJ-4 by Lucas Oil offers almost doubled durability than other 15W-40 oils. A functional package of extra additives makes a difference in terms of action.

Its unrivaled cleanliness serves both newer 2007 engines while treating the old ones. Not to mention, the fully-synthetic fluid remains great for diesel & gas pickups.

Features & Benefits

  • Enhanced Performance

It comes with a standard 15W-40 rating to handle severe weather & heat conditions. The fully synthetic oil base initiates further longevity than common 15W-40 motor oils. Running up to 30000 miles without distortion, the liquid still meets all specifications.

  • Improvised Efficiency

The effective fuel ensures optimum cleanliness for all interior engine parts. It retains the available efficiency of engine parts which triggers greater engine safety. Maximum cleanliness prevails through smooth functionality, thanks to faster lubrication.

  • Excellent Compatibility

In fact, high-quality oil is quite suitable for larger diesel engines. You’ll receive excellent engine support with diesel & gas pickups, SUV & lawn equipment. It simply meets/exceeds Mack, Caterpillar, Cummins, Volvo, DDC, Navistar & Jaso specs.


  • Powerful, effective oil base.
  • Superior engine cleanliness.
  • Heat & weather resistance.
  • Increased vehicular mileage.


  • Questionable packaging.


6. Valvoline Premium Blue 8600 ES SAE Engine Oil

Valvoline Premium Blue ES SAE Engine OilAnother brand-specified formula makes the list to induce maximum performance.

Though the oil is designed for Cummins, it’s also the recommended oil for 6.7 Powerstroke by Ford. The oil features patented DPT functionality for optimum engine protection.

Its unique TBN rating triggers quite long & reliable support for the vehicle. In fact, Valvoline’s Premium Blue initiates advanced action to provide greater efficiency.

Features & Benefits

  • Advanced Protection

The formula includes unique, effective Dispersive Polymer Technology (DPT). It ensures improved soot control while preventing a cold startup of engines. Not to mention, the reduction of oil filter prevails inside to handle higher soot levels.

  • Long-Life Functionality

The featured TBN (Total Base Number) of the oil is rather high in this case. Therefore, the fluid initiates incredibly sufficient TBN retention for greater efficiency. Excellent emission treatment & superior lubricating action delivers a durable performance.

  • Good Wear Resistance

Inside the engine, it triggers a valve train system for further wear protection. In addition, ring/linear protection resists unwanted buildup inside the chamber. Preventing high-temperature deposits, the liquid even clears the single & two-piece pistons.


  • Advanced lubricant action.
  • Effective wear protection.
  • Good engine compatibility.
  • Enduring oil performance.


  • Poor packaging quality.

7. Shell Rotella T5 Synthetic Diesel Engine Oil

Shell Rotella T5 Synthetic Diesel Engine OilAdditional additives for the fully synthetic oil initiates improved engine functionality.

Just like the first option in the list, it includes Triple Protection Plus technology. You will receive a reliable stay-in-grade performance throughout its serviceable life.

You can control engine deposit & wear far better than standard requirements. Apart from enhanced engine functionality, the fluid gives no compromise with durability.

Features & Benefits

  • Incredibly Stable Composition

Shell Rotella T’s low-ash formula allows you to control blocks in exhausting parts. The composition reduces the intervals between 6.7 Powerstroke oil changes. Thanks to its outstanding emission compliance, it simply enhances the overall fuel efficiency.

  • Quite Low Fuel Economy

The heavy-duty fluid resists unnecessary oil breakdown inside the engine. In addition, the 15W-40 oil also delivers improved oxidation for preventing breakdown. Its service interval protection ensures a considerable reduction in fuel economy.

  • Greater Engine Functionality

It’s one of the most advanced formulas you can afford in the market. The blend features multi-functional dispersant additives with fully synthetic base oil. Additionally, the engine wear exceeds 37% than the requirements set by API CK-4.


  • Extended oil draining intervals.
  • High resistance to breakdown.
  • Incredibly low wear & deposit.
  • Good emission control system.


  • Weak sealing of container.


8. Delo 400 SDE SAE 15W-40 Motor Oil

Delo Motor OilSimply enjoy the ride while the brand-specified oil supports your valuable Ford.

The premium motor oil will keep your engine in excellent condition. Whether it’s medium, low/ultra-low sulfur, the best diesel oil for Powerstroke promises satisfactory output.

Advanced wear-resisting action keeps the interior clean for somewhat improved mileage. Its effective functionality is suitable for conventional, old gasoline & diesel engines.

Features & Benefits

  • Maximized Protection

Delo’s SAE oil formulation features an advanced & more effective ISOSYN Technology. It encourages the dispersion of soot while preventing buildups. In fact, a reduced pile of deposit cuts down your fuel cost to a noticeable extent.

  • Superb Oil Workability

The integrated particulate filters can easily handle sulfur diesel fuel. Its incredible usability holds great even for heavy-duty Powerstroke engines. The fully synthetic fluid can work with low, medium & even ultra-low sulfur contents.

  • Low-Emission Action

While offering superior durability, the oil meets low-emission engine requirements. Therefore, it’s quite suitable for post-2007 models. Meanwhile, the effective liquid can serve old & conventional gasoline engines just fine.


  • Premium quality, efficient formula.
  • Meets low-emission engine system.
  • Excellent output with sulfur fuels.
  • Considerably cost-effective action.


  • Slight breaking down of oil.


How to Choose Right Synthetic Oil for Ford 6.7 Diesel

It’s essential to feed the engine with high-quality oil, regardless of your vehicle’s type. Even the Ford 6.7 Powerstroke requires suitable fluid for proper engine function.

That’s where you need to pay attention while buying the best oil for 6.7 Powerstroke. The following factors should help you to make a successful purchase.

Oil Composition

Although we’re talking about synthetic, there are variations available regarding 6.7 Powerstroke oil type. A full synthetic oil features base oil with additives only.

But semi-synthetic & synthetic blend contains a mix of different oils. The combo contains impurities which may result in black, dirty oil for a change.

Viscosity Rating

It’s the measurement of fluid’s thickness which resists the oil’s flow. In fact, the operational temperature has a direct influence on viscosity.

For heavy 6.7 Powerstroke engines, 15W-40 is the most preferable standard. But the 5W-40 rating gives the most extended range of operating temperature for the oil.

Internal Protection

One essential role of engine oil is to reduce metal-to-metal contact or internal friction. Sufficient lubrication of moving parts can even cut short fuel consumption.

This fact largely depends on the ability of contamination control as well. You need to focus on its ability to meet/exceed certain standards for Ford 6.7 engines.

Additive Package

Diesel & gasoline engines have specified interior structure. And to prevent any unwanted blocking element, you should get fluid with powerful additives.

Stronger additive package is one major characteristic of good-quality oils. The effective formula resists & even disperses sludge/soot & deposit inside the fuel chamber.

Emission Control

Modern systems feature an upgraded emission facility that lacks in older engines. If your Ford 6.7 diesel is somewhat old, you have to check its compatibility.

Not to mention, the choice has to remain fully usable with your vehicle. Go through the manufacturer’s recommendation/specification to ensure the oil’s suitability.

Frequently Asked Questions

Q: What brand of oil does Ford recommend?

Answer: For the best performance from Ford 6.7 diesel, Ford Motor Company recommends its brand-specified Ford Fluid Super Duty Diesel Motor Oil.

Q: What’s the capacity of 6.7 Powerstroke oil change?

Answer: Considering Ford 6.7 Powerstroke diesel, the oil capacity measures 13-Quart/3.25-Gal with filter.

Q: What’s the cost for 6.7 Powerstroke oil change?

Answer: A single oil container itself is likely to cost $18 – $25. But the charge for oil change differs depending on the extent of the job. Including tax, it can take up to $100.

Q: How often should I change the oil in 6.7 Powerstroke?

Answer: There isn’t exactly any common rule for an oil change. It basically depends on the manufacturer’s recommendation. However, you can change oil every 7500 miles for 6.7 Powerstroke.

Q: Who manufactures Motorcraft 15W-40 diesel oil?

Answer: There are several brands to produce Motorcraft 15W-40 oil for diesel engines. Ford Motor itself manufactures the oil to meet the strict vehicle requirements.

Final Verdict

Synthetic oil has become the worldwide standard for effective, reliable engine performance. And Ford 6.7 gets an extra boost on the road with a high-quality synthetic fluid. Of course, each of our best engine oil for 6.7 powerstroke promises maximized functionality.

And going through the options, we strongly recommend that Shell Rotella T6 is indeed the best synthetic oil for Ford 6.7 diesel.

From light to heavy diesel & gasoline engines, the fluid proved its worth. Its stable, protective & powerful composition will definitely induce new life for the engine.

Happy Driving.

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