The 5 most common problems with Ford 6.7 PowerStroke diesel engines (2023)

Ford's 6.7 PowerStroke engine is the fourth generation of diesel engines powering Ford trucks. However, the 6.7-liter V8 is actually the first PowerStroke to be manufactured directly by Ford. Earlier engines were from Navistar International. Currently in its 3rd generation, the 6.7-litre diesel offers best-in-class power and torque. It is an excellent engine with 475 hp and 1050 torque. All engines are prone to problems, however, and the Ford 6.7 PowerStroke is no exception. In this article, we discuss some of the most common Ford 6.7 PowerStroke engine problems.

The 5 most common problems with Ford 6.7 PowerStroke diesel engines (1)


We will be writing a detailed post about the different 6.7 liter engines in the near future. However, it is an important topic that you should discuss briefly before delving into common issues. We will provide a brief breakdown of the 3 Gens below.

1. Generation Ford 6.7 Diesel V8

Years: 2011-2014

Again, this was Ford's first internal build of its PowerStroke line of engines. The 1st generation 6.7 liter PowerStroke is said to be the least reliable of the three. It makes sense as it was Ford's first variant of the PowerStroke engines. Almost every early model engine from every company has some early kinks to work out. That's not to say the 1st gen is a terrible engine. However, if you're concerned about reliability and it's within budget, you may want to consider the 2nd or 3rd generation options.

2. Generation 6.7 PowerStroke

Years: 2015-2019

Ford's 2nd generation 6.7 diesel has some notable improvements over the original engine. Some of the updates include:

  • IROX coating on the lower main bearing
  • Heavier crankshaft damper
  • Fan clutch update
  • Turbo updates to support additional power and torque
  • EGR cooler flow

This is not a complete list of updates for the 2nd generation engine. However, as you can see, there have been some major updates to the 6.7-liter PowerStroke. Some of them are said to improve reliability over the initial 6.7L. Some of the updates also focus on improving torque and power.

3rd generation power stroke 6.7

Years: 2020+

The PowerStroke 2020 update is another good one. From its launch, the engine offers best-in-class power and torque. However, the engine is still brand new, so it's hard to say how reliable the 3rd generation 6.7-litre PowerStroke will be in the long run. Nonetheless, we suspect it should be an improvement over the previous engines.

(Video) Ford's 6.7 PowerStroke | Reliability and Common Problems

We'll leave it at that for now as the engine is too new to tell. Again, we will go into more detail about the generations in another post and link to them here.

6.7 Common PowerStroke Issues

Some common errors with the 6.7 PowerStroke are:

  • EGT sensor failure
  • EGR cooler clogged
  • Injection pump failure
  • Radiator coolant leaks
  • turbocharger problems

This is not an exhaustive list of everything that can go wrong. It's also important to note - just because something is on this list doesn't mean every 6.7-litre PowerStroke will have these issues. Nonetheless, these are some common shortcomings of Ford's 6.7-liter diesel V8. We'll address each of these issues below, and recap the post with general thoughts on how reliable the 6.7-liter Power Stroke is.

1) 6.7 PowerStroke EGT-Sensorfehler

Exhaust gas temperature (EGT) sensor problems are among the most common problems with the 6.7 PowerStroke engines. The 6.7 liter V8 uses a total of 4 EGT sensors, so there are a few areas for potential error. Ford issued an extended warranty to cover the EGT in the event of a failure. Hopefully you have the extended warranty, otherwise you'll be paying out of pocket. Even after the first replacement, the 6.7-liter EGT sensors can fail again. EGT sensors 12 and 13 (the middle two) seem to be the most common faults.

Some also choose to clear the EGT sensors as they can be so troublesome. Before 2015, these issues could potentially leave you stuck. Fortunately, Ford issued a service bulletin in 2015 to update the PCM to reduce the possibility of being stranded with a simple EGT sensor failure. Even then, it can be a good idea to carry an extra sensor in the truck.

PowerStroke 6.7 EGT Sensor Symptoms

Symptoms that may indicate an EGT sensor failure include:

  • Check the engine light
  • error codes
  • Failed emissions test

Once the PCM detects a problem with the EGT sensor, it will usually trigger the check engine light. You will also likely get a trouble code (DTC) that will point you in the direction of the sensor in question. P0544, P2031, P2032, P2033, P2084, P242A, P242D, P2471 and P246E are some of the most common trouble codes that the 6.7L Power Stroke can trigger. Prior to 2015, the EGT sensor 13 was the one typically causing the limp home mode and inability to drive the truck. Some have also encountered this problem after the PCM update.

6.7 Replacing the Power Stroke V8 EGT sensor

If any of these sensors are defective, check if you are covered under the extended warranty or the original factory warranty. However, some under warranty still choose to carry an extra sensor and do the job themselves. 6.7-liter Ford EGT sensors run along the exhaust and are fairly easy to access. Most can probably get the job done in 15 minutes, and the sensors are only $35-$50.

Make sure the exhaust isn't too hot to work on. Otherwise, it's as simple as a repair can be. For this reason, many choose to carry around an extra sensor or two. Going to the dealership for warranty work may be too much of a hassle for some.

(Video) Everything Wrong with the 6.7L Powerstroke

2) 6.7 EGR cooler clogged in power cycle

EGR cooler problems is also one of the most common Ford 6.7 Power Stroke problems. However, it is not as common as on the previous 6.0-liter and 6.4-liter engines. Ford actually changed the design of the EGR system on the 6.7 liter engine. The valve is now on the hot side. EGR flows from the exhaust to the valve and then into the EGR cooler when the valve is open.

However, the new design for the 6.7-liter Powerstroke brings its own problems. Carbon deposits can build up on the EGR cooler core and cause it to become completely clogged. The good news is - replacing the EGR cooler is much easier than on previous Power Stroke engines. As with the EGT sensors, some 6.7-liter owners choose to delete the EGR system.

EGR cooler clogging symptoms

Look out for the following symptoms of Ford 6.7L Power Stroke EGR cooler problems:

  • Error code P0401
  • Check the engine light
  • overheating

A check engine light and DTC code P0401 indicate a likely problem with the EGR cooler. You may also notice overheating as the exhaust gas recirculation system may not cool the gases effectively if it is clogged.

Replace 6.7L PowerStroke EGR cooler

Once a problem with the EGR system arises, some choose to simply wipe the entire system. EGR delete kits can be found for around $300-400. However, this can cause problems when later passing emission tests.

Otherwise, replacement is straightforward compared to previous Power Stroke engines. The EGR cooler kit for the 6.7L Powerstroke is around $200-$300. Advanced DIYers should have no problem turning off the EGR cooler replacement. However, it may take a few hours for the process to complete.

3) PowerStroke 6.7 injection pump failure

Okay, that's our last slightly longer topic. We'll speed things up on the next topics. Fuel Injection Pump (HPFP) failure can be a problem for many 6.7L Power Stroke owners. This issue may be an exaggeration, but it's something to be aware of. The HPFP is a Bosch CP4 and has been known to fail due to metal-to-metal contacts within the pump. What's worrying is this: Metal contamination in the fuel system can take many other components with it.

Some eventually had to replace much of the fuel system when the pumping problems emerged. Everything from the 6.7 Power Stroke injectors, regulators and fuel lines may need to be replaced. There have even been some class action lawsuits over these issues. Fortunately, Ford uses a new pump on the 3rd generation 6.7 PowerStroke.

Power Stroke HPFP Error Symptoms

Some symptoms of a 6.7 liter Power Stroke injection pump failure are:

(Video) Ford 6.7L Powerstroke Engine: Preventing Catastrophic Engine Failure

  • stall
  • Long crank or no start
  • Rough idle/stuttering
  • Severe power loss

Once the pump fails, there is no fuel flow, which can cause the engine to stall. After stopping the engine, starting problems may occur and it may not start at all. Inadequate fuel flow can also cause rough idling, stuttering and a severe loss of power. This is all assuming that the 6.7 liter pump is still flowing just enough fuel to keep the engine running.

Ford 6.7L hp injection pump replacement

Some 6.7 Powerstroke owners report spending over $10,000 to fix the HPFP issues. This is due to the metal shavings from the pump ruining many other fuel system components. Ultimately, in this scenario, almost the entire fuel system has to be replaced.

If you're lucky, you can quickly identify the problem and prevent further damage. The pump can also fail in other ways that are not caused by metal-to-metal contact. In this case, the pump itself is still quite expensive. Still, consider yourself lucky because it's better to replace the entire 6.7L Powerstroke fuel system.

4) Ford 6.7 Diesel V8 Radiator coolant leaks

We promised we would speed things up a bit and this is a pretty fundamental issue to discuss on the 6.7 Power Stroke. There are a few other coolant leaks that can show up, but the radiator is among the most common. We should note that the 6.7 liter engine actually uses two radiators. The primary cooler is the more common problem.

We'll skip a symptoms section because it's easy. Look for potential coolant leaks at the front of the radiator. You may notice low coolant or overheating if the leak is bad enough or left alone for too long.

Ford PowerStroke 6.7 radiator replacement

An upgrade can't hurt if the OEM cooler on the 6.7 PowerStroke gives up the ghost. There are some great options, but depending on the brand, they can cost twice as much as the OEM option. Ford's 6.7 engine uses an OEM CSF cooler and they are usually available for under $400.

The replacement is not too difficult, but slightly more complicated due to the use of two radiators. It takes some time and patience, but DIYers should have no problem turning off the primary cooler on the 6.7-litre diesel.

5) Ford PowerStroke 6.7L turbocharger issues

Turbo issues mainly affect the earlier 1st generation 6.7 power stroke diesel engines. The turbo bearing occasionally fails. Many suspect the failures are due to Ford going with a turbo that is undersized for the boost and torque required. Therefore, for those planning to modify their 6.7-liter Power Strokes for more power, failure can happen much sooner.

The 2nd generation gets an updated larger turbo to help with the extra power and torque. Turbo failures seem to be less common on these later 6.7 models. However, a turbo will be abused a lot in its lifetime. This is especially true for turbo diesel engines like the 6.7 liter PowerStroke as they often have such a long lifespan. Modern turbos can usually outlast an engine's life, but that's not always the case with diesel engines, which can run well in excess of 200,000 miles.

(Video) 6.7 Powerstroke Best Year

It's not really fair to call it a common problem in those cases where the turbo is reaching the end of its natural lifespan. Nevertheless, the point remains. Turbos are wearing parts and can fail with every Power Stroke of the 6.7 generation. Turbo life can also decrease significantly on modified 6.7 liter engines.

Symptoms of a 6.7 liter turbo failure

Watch out for the following symptoms that may indicate the 6.7L PowerStroke Turbo is having trouble:

  • Excessive smoke
  • Loss of oil / oil in the exhaust
  • Turbo does not reach target thrust
  • Howling turbo noise
  • power loss

When a turbo fails suddenly, quite a lot of oil is often pumped into the exhaust, resulting in oil loss and excessive smoke. We had a sudden turbo failure on one of our petrol cars and it was quite dramatic. Also look out for howling or unusual turbo noise. Boost below target and loss of power can also indicate that the turbo is tired and is on its way out.

6.7 Replacing the Power Stroke Turbo

The exact replacement depends on the generation of the 6.7 liter Powerstroke engine. However, turbo replacements often cost upwards of $2,000. Some opt for an upgraded turbo if or when the OEM turbo fails. Even if you're not looking for extra power, a bigger turbo will take less abuse and should last better in the long run. The trade-off, of course, is a slower turbo spool if you're going with a turbo that's too big.

Is the 6.7 Power Stroke reliable?

Yes and no. The Ford 6.7 liter engine certainly has some issues, particularly the 1st generation example. 2nd generation 6.7 engines are an improvement but still have some issues. We suspect the same case for the 3rd gen, but it's too new an engine to say positively. That's not to say the 6.7-litre Power Stroke engine is a terrible and unreliable engine, however.

Many of the problems stem from emissions-related components, which some remove once problems arise. There are a few things we didn't mention like SCR and DEF. Of course, the legal aspects must also be taken into account when deleting OEM exhaust systems. Nonetheless, with the omission of some of these emissions systems, these 6.7-litre engines certainly run better and more reliably.

The 6.7-liter Power Stroke has a few other unrelated issues. The HPFP issues in particular can be worrying due to the extensive damage that might occur. Primary coolers are known to leak as they age and turbos can be problematic on the early 6.7 liter engines.

6.7 Summary of Common PowerStroke Issues

Ford's 6.7-litre Power Stroke might not be the most reliable of diesels, especially when compared to some older diesels. Part of this lies in the nature of modern factory exhaust systems. Ford isn't the only one having trouble with some of this newer, complex emissions stuff. EGT sensor and EGR cooler clogging is among the most common problems with the 6.7 PowerStroke.

These systems (along with some other emission systems) can be deleted, and the 6.7-liter engine will become much more reliable. In addition to deleting these systems, however, there are legal and emissions concerns. Otherwise, be on the lookout for potential fuel injection pump problems as failure can quickly become catastrophic. Radiators are another common problem, and early models of 6.7-liter Power Strokes occasionally experience turbo issues.

(Video) Ford 6.7L Powerstroke Fuel System Failure | Everything You Need To Know

Take out the emission systems and the 6.7 Powerstroke is a very reliable engine. Even with the few usual issues, the 6.7-liter Power Stroke should be good for 250,000+ miles. Maintain your Ford 6.7 liter engine well and chances are it will reward you with a great overall experience.

What is your experience with the Ford 6.7L PowerStroke? Are you considering buying one?
Leave a comment and let us know!


Are there any problems with the 6.7 Powerstroke? ›

Gen 2 6.7 Powerstroke Problems

By 2015, Ford Motor Company had corrected many of the earlier problems and upgraded the engine in significant ways. If there are problems with 6.7 Powerstroke parts in 2015-2019 models, they tend to be with the EGR cooler flow, the fan clutch, and the crankshaft damper.

What is the life expectancy of a 6.7 Powerstroke? ›

After years of production, the 6.7L Power Stroke has proven it can storm past the 200,000-mile mark with few repairs. Provided you adhere to Ford's recommended service intervals, there is no reason this engine won't see 300,000 or even 400,000 miles.

What's the best year 6.7 Powerstroke? ›

You should only buy the 6.7 from 2015 onward. The problems discussed below plagued the first generation of 6.7 Powerstroke engines from 2011 to 2014. What is this? In 2015 Ford redesigned everything that was causing problems, and the 6.7 is now a reliable engine many people love and rely on for daily work.

Is the Ford 6.7 diesel engine any good? ›

The 6.7-liter PowerStroke turbodiesel V8 came to life in 2011. It has a reputation of being the least reliable of the three generations of engines. If your pocketbook will allow, you should consider one of the newer generations, though we'll get into problems with those, too.

What is the highest mileage 6.7 Powerstroke? ›

The owner of this Ford Super Duty has racked up an incredible 1.3 million miles on it in a rather short period of time, in fact. When he first acquired the 2013 Ford F-350, it already had 98k on the odometer but has since stopped at 999,999.

How often should you change oil in 6.7 Powerstroke? ›

6.7L Diesel Suggested Maintenance. Oil and Filter - Oil change service intervals should be completed as indicated by the instrument cluster message center or every 7,500 miles. Fuel Filter Change - Change every 3rd oil change or every 15000 miles(24,140 km) or as indicated by the message center which ever comes first.

What are the most common problems with the 6.7 Powerstroke? ›

  • What is the 6.7 PowerStroke Diesel Engine?
  • Ford's PowerStroke Engine has a Long History of Issues.
  • Exhaust Gas Temperature (EGT) Sensor Failure.
  • 6.7 Diesel EGR Cooler Clogging Issues.
  • Ford Diesel Engine Radiator Coolant Leaks.
  • Injection Pump Failure Leads to Numerous Potential Problems.
Jun 28, 2022

Is 6.7 Cummins better than 6.7 Powerstroke? ›

Both trucks share similar truck numbers but differ in output, with the Powerstroke coming on top. The Cummins also uses the single sequential turbocharger, but it is different from that of the Powerstroke engine. In terms of performance, the 6.7 Powerstroke engine offers the best.

Is 200000 miles alot for a 6.7 Powerstroke? ›

The Powerstroke engine is found in Ford trucks and, like the Duramax and Cummins engines, can often last up to 500,000 miles. However, as with the Duramax and Cummins engines, between 350,000 and 500,000 miles is usually considered high mileage for a Powerstroke engine.

What is the best powerstroke engine? ›

We'll cut to the chase and tell you that the 6.7L Turbo-Diesel Power Stroke engine, released in 2019, is the latest and greatest Ford Diesel engine ever made. We'll go over all the different models of the Power Stroke and see precisely why the 6.7L Turbo was such a great leap forward compared to its predecessors.

What is the most reliable diesel truck on the market? ›

Most Reliable Diesel Pickups of All Time
FordF-250/F-3507.3-Liter Power Stroke V-8
Chevy/GMCSilverado/Sierra6.6-Liter Duramax LB7 V-8
Chevy/GMCSilverado/Sierra6.6-Liter Duramax LBZ V-8
Dodge Ram2500/35005.9-Liter, 12-Valve Cummins I-6
1 more row
Jul 16, 2022

What is the most reliable diesel ever? ›

The first choice for the most reliable diesel pickup trucks of all time is the 1999-2003 Ford F-250/F-350 Super Duty with the 7.3-Power Stroke plant. The Power Stroke engine is a simple, low-maintenance powerplant that, depending on the year, makes anywhere between 235 and 275 horsepower and 500-525 lb-ft of torque.

Which is better Duramax or Powerstroke? ›

Both the Ram's Cummins (seen above) and Ford's Power Stroke can pull over that amount, but the Duramax lags with a total towing capacity of 23,300. The Power Stroke wins here again with a total towing amount of 34,000 pounds versus Ram's 31,210 pounds.

What year did they stop making the 6.7 Powerstroke? ›

Since the 2011 introduction of the 6.7 L Power Stroke V8, Ford has designed and produced its own diesel engines.
Ford Power Stroke engine.
Power Stroke engine
ManufacturerNavistar International (1994–2010) Ford Motor Company (2011–present)
Also calledFord Powerstroke
25 more rows

What kind of oil does a 6.7 Powerstroke take? ›

We recommend Motorcraft motor oil for your vehicle. If Motorcraft motor oil is not available, use motor oil of the recommended viscosity grade that meets our specification WSS-M2C171-F1.

How can I get better gas mileage in my 6.7 diesel? ›

You want to keep your RPM gauge out of the red zone, which indicates that you're revving too hard. Keeping the needle lower on the gauge will translate into better fuel economy. If you need to speed up when you're driving, do it gradually. By pressing on the pedal slower, you can keep your RPM down.

How long does a 6.7 Powerstroke need to warm up? ›

I let mine warm up for 10 minutes, and go easy on her until full operating temp.

Is 6.7 Powerstroke better than 6.4 Powerstroke? ›

Cast from compacted graphite iron by Tupy, the 6.7L Power Stroke's deep-skirt block reduces both weight and NVH over the 6.4L's cast-iron crankcase yet is considerably stronger.

How many gallons of oil does a 6.7 Powerstroke take? ›

Use motor oil meeting Ford Specification WSS-M2C171-F1. The manufacturer recommends 10W-30 for normal usage and 5W-40 for severe operations. If biodiesel fuel blends (B20 max) are used the use of 5W-40 or 15W-40 oil is recommended. 29.00 GALS.

How many gallons does a 6.7 Powerstroke take? ›

Capacities and Specifications - 6.7L Diesel
Fuel tank (Large)61 gal (230.9 L) (Usable capacity)3
65 gal (246 L) (Liquid capacity)
Brake FluidBetween MIN and MAX on brake fluid reservoir
Automatic Transmission Fluid16.3 qt (15.4 L)4
26 more rows

How often should you drain fuel water separator 6.7 Powerstroke? ›

You should drain water from the module assembly whenever the warning light illuminates or a message appears in the information display advising you to drain the water separator. This occurs when approximately 6.76 fl oz (200 ml) of water accumulates in the module.

How do I know if my 6.7 Powerstroke has a blown head gasket? ›

Here are four signs that your head gasket is blown or has suffered damage so you can get it repaired right away.
  1. Blue Exhaust smoke & White Material in Your Oil. ...
  2. White Exhaust Smoke. ...
  3. Overheating Engine. ...
  4. Poor Performance.
Aug 26, 2015

What makes the 6.7 Powerstroke so good? ›

Big low-rpm torque, insurance to facilitate future increases in cylinder pressure (i.e. torque), substantial weight reduction and improved noise, vibration, and harshness (NVH) all pointed Ford in the direction of using compacted graphite iron (CGI) for the 6.7L's block rather than conventional gray iron.

What is Ford's most reliable diesel engine? ›

And one diesel powerplant from Ford is seen by many to be one of the best, the 7.3-liter Power Stroke. This engine generates up to 275 horsepower and up to 525 pound-foot of torque. It also has a reputation for being nearly bulletproof. This is why Ford Super Duty trucks with the 7.3 are so sought-after.

Which lasts longer Cummins or Power Stroke? ›

Most diesel enthusiasts seem to agree that the Cummins Turbo Diesel is the better engine in terms of reliability, but the Ford pickups tend to last longer and be more reliable than the Ram pickups.

What diesel truck has the best engine? ›

So, what is the best diesel engine in a pickup truck? The best diesel truck motors are Cummins, Duramax, and Power Stroke, such as the ones below: Chrysler 3.0L EcoDiesel: Generating up to 240 hp and 420 lb-ft of torque, the powerful EcoDiesel has been an option in vehicles such as the Jeep Grand Cherokee and RAM 1500.

What is the best heavy duty diesel engine? ›

High Output 6.7L Cummins® V8

The 6.7L Cummins diesel engine is unquestionably one of the best diesel truck engines around. It's available on the heavy-duty RAM 2500 and the heavy-duty RAM 3500, where it produces the following output: Power — 400 horsepower. Torque — 1000 lb-ft of torque.

Does 2022 6.7 Powerstroke have high idle? ›

2022 F-350 6.7 high idle and automatic engine brake.

What is Ford's strongest engine? ›

The Ford Motor Company has built nearly every kind of V8 engine we can imagine over the past century, but the biggest was the 1100 CID GAA tank engine of World War II.

What are the top 5 diesel engines? ›

Ranking The 10 Best Diesel Engines Ever
  • 8/10 Cummins 6.7.
  • 7/10 Toyota Diesel Straight-Six.
  • 6/10 Trident Iceni 6.6 V8.
  • 5/10 Alfa Romeo 2.4 JTDm.
  • 4/10 VAG 1.9 8v TDI PD.
  • 3/10 Audi Q7 V12 Diesel.
  • 2/10 Mercedes OM617.
  • 1/10 Peugeot 908.
Sep 19, 2021

What makes a Power Stroke BulletProof? ›

The fine folks at BulletProof Diesel define 6.0L Power Stroke as being "bulletproofed" when it has at least four of the five main problem areas addressed. These five areas are: Oil cooler, EGR cooler, head studs, fuel injection control module (FICM), and water pump.

How often do you need to change a diesel fuel filter? ›

Diesel fuel is by nature, quite dirty, so it makes sense that the fuel filter is one of the most important filters on any diesel application. They usually require a change every 10,000 to 15,000 miles whereas a modern gasoline fuel filter could go 100K+ miles before a change is needed – if at all.

Which diesel truck lasts the longest? ›

Longest Lasting Diesel Engines
  • Cummins B-Series. Cummins has been producing diesel engines for many years, and the B-series is probably the best engine that Cummins serves up. ...
  • Caterpillar C-12. ...
  • International Power Stroke. ...
  • Dodge Ram HD. ...
  • Dodge W250. ...
  • 1999 Ford Super Duty. ...
  • 2008 Ford F-250.

What is the number 1 most reliable truck? ›

Based on reliability, the best truck to buy in 2022 is the Toyota Tacoma, which comes in with a Consumer Reports score of 74. This truck is followed closely by the Ford Lightning, which received a 73.

Is 20 year old diesel fuel still good? ›

Diesel fuel can only be stored from 6 to 12 months on average — sometimes longer under the best conditions. Generally, to prolong the life of the quality of stored diesel fuel, it should be: Kept cool at around 70 degrees Fahrenheit; Treated with biocides and stabilizers.

What diesel engine has the least problems? ›

The 7.3L Powerstroke is still considered one of the most reliable diesel engines ever made. It also has plenty of power for most applications, with 500 pound-feet of torque and 235 horsepower. It was built for the long haul, too with an air-to-air intercooler, oil-based fueling, and durable internal hard parts.

Is #1 or #2 diesel better? ›

Diesel #1 is also known as winter diesel because it performs better than Diesel #2 in cold temperatures. It has a lower viscosity and is not prone to gel in freezing temperatures. Most stations offer a premium Diesel mix that is blended for local weather conditions. Diesel #2 costs less at the pump.

Which manufacturer makes the best diesel engines? ›

What Are the 5 Best Diesel Truck Engines?
  1. Chrysler 3.0L EcoDiesel I-6. Diesel goes light-duty, but this small-but-mighty EcoDiesel is the industry's lone light-duty diesel engine: ...
  2. High Output 6.7L Cummins V8. ...
  3. Duramax 6.6L LBZ V8. ...
  4. Navistar/Ford 7.3L Power Stroke. ...
  5. Ford 6.7L Power Stroke V8.

Which diesel truck gets the best mpg? ›

2023 Chevrolet Silverado Diesel | 26 MPG

The most fuel-efficient new fullsize pickup trucks you can buy are the diesel-powered 2023 Chevy Silverado and GMC Sierra. These light-duty trucks both use the same 3.0-liter turbodiesel inline-six. Both trucks throw down a solid 33 mpg on the highway and 23 mpg in the city.

Is diesel better than V8? ›

3.0L Duramax Diesel vs.

While the 3.0L Duramax diesel comes out on top in terms of efficiency and torque output, the 5.3L V8 shines when it comes to towing heavy, bulky items with ease. The 5.3L V8 is capable of towing up to 11,500 pounds, while the diesel option maxes out at 9,500 pounds.

What is the life expectancy of a 6.7 PowerStroke? ›

After years of production, the 6.7L Power Stroke has proven it can storm past the 200,000-mile mark with few repairs. Provided you adhere to Ford's recommended service intervals, there is no reason this engine won't see 300,000 or even 400,000 miles.

How many miles can you get out of a 6.7 PowerStroke? ›

For example, a well-maintained 6.0L or 6.7L engine can last up to 400,000 miles! If you want to know how to get the most out of your engine, we'll give you some pointers.

Who makes the new 6.7 PowerStroke? ›

The 6.7-liter Power Stroke V-8 is Ford's first diesel motor for its F-Series pickups to be developed entirely in-house after three decades partnering with the contract engine manufacturer. It will be built at Ford's plant in Mexico.

Is rotella T6 approved by ford? ›

The approved oils – Shell ROTELLA T4 15W-40 Triple Protection, Shell ROTELLA T5 10W-30 Synthetic Blend and Shell ROTELLA T6 5W-40 Full Synthetic – meet Ford Material Engineering Specification WSS-M2C171-F1.

Does Ford recommend synthetic oil? ›

Every Ford model has the required oil specification listed in the owner's manual. High performance cars like the Mustang as well as turbocharged engines across the Ford lineup typically require synthetic engine oil. If your car doesn't require synthetic oil, the choice is yours to make.

Can you use synthetic oil in a Ford 6.7 diesel? ›

For a 6.7 powerstroke engine, AMSOIL recommends Signature Series Max-Duty Synthetic Diesel Oil 10W-30 for normal usage (above -18 degrees F) and 5W-40 for severe operating conditions. If biodiesel fuel blends are used, the use of 15W-40 (above -7 degrees F) or 5W-40 (above -29 degrees F) oil is recommended.

Is 6.7 Cummins better than 6.7 PowerStroke? ›

Both trucks share similar truck numbers but differ in output, with the Powerstroke coming on top. The Cummins also uses the single sequential turbocharger, but it is different from that of the Powerstroke engine. In terms of performance, the 6.7 Powerstroke engine offers the best.

Is a Duramax better than a PowerStroke? ›

Both the Ram's Cummins (seen above) and Ford's Power Stroke can pull over that amount, but the Duramax lags with a total towing capacity of 23,300. The Power Stroke wins here again with a total towing amount of 34,000 pounds versus Ram's 31,210 pounds.

What is the most reliable PowerStroke engine? ›

The 7.3L Powerstroke is still considered one of the most reliable diesel engines ever made. It also has plenty of power for most applications, with 500 pound-feet of torque and 235 horsepower. It was built for the long haul, too with an air-to-air intercooler, oil-based fueling, and durable internal hard parts.

What PowerStroke engines to avoid? ›

The 2003-2007 Ford Super Duty 6.0L may be the worst diesel truck of all time. The 6.0L Powerstroke is infamous. The engine is so bad that Ford and Powerstroke parent company Navistar were engaged in a serious legal battle.

What is the most reliable diesel truck engine? ›

So, what is the best diesel engine in a pickup truck? The best diesel truck motors are Cummins, Duramax, and Power Stroke, such as the ones below: Chrysler 3.0L EcoDiesel: Generating up to 240 hp and 420 lb-ft of torque, the powerful EcoDiesel has been an option in vehicles such as the Jeep Grand Cherokee and RAM 1500.

What is the best diesel engine Ford ever made? ›

The first such engine to hit the market was the 7.3L. It is known to this day as one of the sturdiest and most reliable diesel engines ever produced. What is this? The 7.3L Power Stroke.

Why is Cummins better than Power Stroke and Duramax? ›

Both the 6.6L Duramax and 6.7L Power Stroke are V8 engines, with the 6.7L Cummins being an inline six-cylinder diesel engine. Horsepower and torque numbers are similar between the three diesel engines, but the Cummins engine leads the pack with its torque rating breaching the four-figure threshold.

What is the strongest diesel engine? ›

This jaw-dropper is the Wärtsilä RT-flex96C, the world's largest and most powerful diesel engine. Built in Finland, the RT-flex96C's fourteen cylinders can generate 107,389HP with more than 7,000,000Nm of torque — that's enough to power an entire suburban town.


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