Is 6.4 Diesel A Good Engine?

One such engine is the 6.4L Power Stroke V-8 diesel, which was introduced for Super Duty trucks in 2008 as a replacement for the problem-prone 6.0L. Yes, it’s a better engine up front than its predecessor (and when modified properly, it can be a performance beast). However, it, like the 6.0L, has a number of well-known (at this point) flaws that are costly to fix.

Is the 6.4 Ford diesel any good?

The 6.4 Power Stroke engine was only used in Ford vehicles for a few years. It’s also the last Ford diesel from International, as the 6.7 Powerstroke was designed and built in-house by Ford. From the factory, Ford 6.4 diesel engines produce 350 horsepower and 650 torque. For the time period in which the 6.4 Powerstroke was released, they were respectable numbers. Some consider the 6.4L to be a more reliable engine than Ford’s previous 6.0 diesel engine. No engine, however, is perfect, and this is no exception. We’ll go through a few typical issues with the 6.4 Power Stroke as well as overall reliability in this article.

How many miles will a 6.4 Powerstroke last?

If you treat your truck well, you should be able to get over 200k miles out of it with proper maintenance and an acceptable right foot.

Is 6.4 or 6.7 engine better?

The comparison of the 6.4L Power Stroke and the 6.7L Power Stroke may be the best approach to demonstrate polar contrasts within the same engine family. The Navistar-built 6.4L was a great foundation for increasing horsepower because to its high-volume Siemens common-rail fuel system and factory-installed compound turbocharger arrangement, but it shared much of its architecture with the 6.0L that came before it. Ford’s 6.7L Power Stroke, on the other hand, was a ground-up project from FoMoCo that essentially reinvented the wheel in light-duty diesel enginery. The all-new V8 was the first in the truck market to have a compacted graphite iron crankcase, reverse-flow cylinder heads, and water-to-air intercooling, and it outperformed GM and Dodge in terms of horsepower and torque.

The 6.4L Power Stroke was Ford’s third and final turbo-diesel engine produced by Navistar. With a 3.87-in bore and 4.13-in stroke, the cast-iron block produced 350 horsepower and 650 pound-feet of torque when it left the factory. Ford took complete control of the 6.7L Power Stroke, designing it entirely in-house. They increased the power to 390 horsepower and 735 pound-feet of torque by using a deep-skirt, compacted graphite iron block with a displacement of 406 cubic inches.

Both power plants have been out long enough to draw a number of conclusions, with the 6.4L having almost 12 years of seat time and the 6.7L having around nine years since its introduction. The 6.4L’s emissions system, fuel system, and general engine longevity leave something to be desired, and maintenance can be exceedingly costly. The 6.4L, on the other hand, is difficult to beat in performance applications where large horsepower is the name of the game. We’ve seen 700 rwhp squeezed out of OEM turbochargers with factory connecting rods capable of 900 rwhp. Turbo failure was widespread on 6.7L engines from 2011 to 2014, connecting rods are a known weak point (with 650 to 700rwhp being the commonly accepted limit), and emissions system-related troubles come and go. On the other hand, hard-part failures are uncommon on the 6.7L Power Stroke, and the engine appears to age better than the 6.4L.

Continue reading for an apples-to-apples comparison of the two most powerful Power Strokes to ever grace a Ford Super Duty.

What is Ford’s best diesel engine?

“The critical factors for any diesel engine surviving forever are robust, iron parts, conservative power, and low engine speed—and if a 7.3L has been carefully maintained its whole life, 400,000 to 500,000 miles is nearly certain.”

What powerstroke to avoid?

The 6.0L Powerstroke is a well-known engine. Because of the engine’s poor performance, Ford and Powerstroke’s parent company, Navistar, were involved in a lengthy court dispute. Ford said Navistar produced a faulty engine. Ford has ignored unsatisfactory test results for the 6.0L Powerstroke, which could have prevented post-production issues, according to evidence.

As the Powerstroke suffered catastrophic failures, expensive engine replacement warranty claims flooded in. The cab of the vehicle had to be removed for the majority of these repairs. Because to this engine, many owners have lost faith in the brand. A series of recalls affecting this notoriously problematic truck are listed by Consumer Reports.

Is the 2008 6.4 Powerstroke a good engine?

One such engine is the 6.4L Power Stroke V-8 diesel, which was introduced for Super Duty trucks in 2008 as a replacement for the problem-prone 6.0L. Yes, it’s a better engine up front than its predecessor (and when modified properly, it can be a performance beast).

Which f250 engine is best?

The 6.2 & 7.3 gas vs. 6.7 Powerstroke contrast is about all there is to it. The 6.7 Powerstroke is the apparent choice if you require the best performance and towing. Those searching for something less powerful can go for the 6.2 Boss or 7.3 Godzilla V8 gas engines. Ford 7.3L engines cost a little more, but they’re still affordable.

Most people will be able to stop reading at this point. The remainder of this article may be repetitious. For those who are still undecided, we’ll delve deeper into the 6.2 vs 7.3 vs 6.7 debate.

Ford Gas vs Diesel Engines Reliability

We briefly discussed each engine’s dependability before. Diesel engines are known for having a longer lifespan than their gasoline counterparts. Modern emissions equipment, on the other hand, works against diesel engines. The renowned 7.3 Powerstroke and 5.9 Cummins engines are no longer available. Modern diesel engines, such as the 6.7 Powerstroke, frequently experience problems with emissions equipment. However, they are still dependable engines with a lengthy service life.

When comparing the Ford 6.2 gas engine to the Ford 6.7 Powerstroke, we believe the diesel engine will outlast the gas engine on average. The Ford 6.2 Boss, on the other hand, is still a solid, dependable engine. Although the 7.3 Godzilla is still too fresh to be certain, it appears to be following in the footsteps of the 6.2 V8.

If all engines are maintained the same, the 6.7 Powerstroke has the advantage in terms of reliability and longevity. The 6.2, 7.3, and 6.7 Powerstroke engines are all still reliable. Sometimes it’s just a matter of luck of the draw. The links below will take you to a few articles about the most typical difficulties with Ford engines.

Gas vs 7.3 Gas vs 6.7 Powerstroke Towing

Towing capacity of the Ford F-250 and F-350 is affected by a number of factors. As a result, the following figures represent a broad range for each engine:

What these figures don’t show is that the 6.7 Powerstroke has a significant advantage in terms of GCWR. This is going to be a recurring theme. However, the 6.7 Powerstroke’s towing capacity and CGWR indicate that it is the best engine for towing. Its big torque advantage will make hauling considerably easier as well.

That isn’t to say the 6.2 and 7.3 liter gas engines aren’t competitive. They are still capable of hauling more than most diesel trucks from ten years ago. If you’re not planning on towing 15,000+ lbs in extreme conditions on a regular basis, the 6.2 and 7.3 will suffice.

F-250 & F-350 Fuel Economy (MPG)

This relates to the towing topic from before. MPG will be determined by a variety of factors. The fuel economy of the Ford 6.2 gas, 7.3 gas, and 6.7 Powerstroke engines is very similar. However, the 6.7 diesel engine may provide superior fuel economy while pulling heavy loads.

The diesel engine’s enormous low-end torque allows you to start rolling without using a lot of RPMs and taxing the engine. As a result, individuals who demand the most are likely to choose the 6.7 Powerstroke. Aside from that, all of these Ford engines in the F-250 and F-350 get comparable MPG.