Which is better—the 6.7L Powerstroke, or the 6.6L Duramax?

I am finally ready to buy my first new work truck. Other people on my crew have major opinions about which engine is best for hauling (I own a construction company), but I want to make an informed choice, Which is better, the 6.7L Powerstroke, or the 6.6L Duramax engine?

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Answer provided by
Lynell Spencer
Answered on Apr 29, 2022
You are right! This can be a very loaded question. And, while there is more to think about than just the engine, it is one of the most important parts of picking a work vehicle.
**The 6.7L Powerstroke beats Duramax in towing capacity and reliability, while Duramax wins fuel economy and torque. **
The Powerstroke diesel engine powers Ford trucks, while Duramax runs GM vehicles, including GMC and Chevy. To decide which is right for you, here is an easy side-by-side comparison:
EngineTowing capacityBest fuel economyTorqueHorsepowerReliabilityPopularityWarranty
Powerstroke34,000 lbs maxF150 SuperCrew- 25 MPG highway650 lbs/foot maxup to 450Engine 500,000 mi- overall higher reliability ratings on avg.Ford has the most popular trucks in AmericaMedium duty trucks—250,000 miles, all others- 5 years or 100,000 miles
Duramax23,300 lbs maxSilverado- 33 MPG highway765 lbs/foot maxup to 445Engine 500,000 mi- lower reliability ratings in avg.GMC ranks behind Ford and Dodge5 years or 100,000 miles
In many ways, these engines are similar—so think about what you need most from your truck so you make the best choice for you.
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