Are 6.7 Cummins reliable?

That said, the 6.7 Cummins is a fairly reliable engine overall. This is especially true if you opt to delete some of the emissions equipment like the DPF and EGR systems. Beware of potential emissions or legal implications, though.
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Is the Ram Cummins diesel reliable?

The Ram 2500 received an average 2.5 out of 5.0 reliability rating from RepairPal. It also ranked 10th out of 17 trucks in the same category. The 2500 may be a good truck for manual labor, but it can become expensive to own. Its average annual repairs and maintenance cost is around $1,070.
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Is it worth deleting 6.7 Cummins?

There are two primary reasons for deleting the DPF system on the 6.7 Cummins. First is for performance purposes. Since the DPF system is part of the exhaust, it creates a lot of backpressure which detracts from performance potential. Secondly, the DPF system is prone to clogging and costs $2k+ to replace when it clogs.
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How many miles per gallon does a 6.7 Cummins get?

The 2022 RAM 2500 comes equipped with a 6.7-liter Cummins® Turbo Diesel Inline-6 and 6.4-liter HEMI® V8 engine that produces up to 410 hp and 429 lb. -ft. of torque in 4×4 configuration. The engine is rated to do up to 12 city/18 highway/15 combined MPG on the fuel economy when running in the four-wheel drive mode.
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How many miles will 6.7 Cummins last?

Ram claims the Cummins 6.7 engine to be good for 350,000 miles. The mileage is guaranteed if the scheduled services have been carried out timeously and no performance modifications have been done to the engine.
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Ram 3500 417k mile review. 6.7 Cummins.



What are the problems with the 6.7 Cummins?

EGR and DPF problems are common on the 6.7 Cummins – as well as many other modern diesels. The sheer torque of the 6.7L engine can also cause issues with the head gaskets failing. Otherwise, turbo problems are possible with higher mileage as they take a lot of abuse.
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Which diesel engine is most reliable?

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.
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Which is better Cummins or Duramax?

The Duramax leads with horsepower, but the Cummins is the king of torque with numbers up to 1,000 ft-lbs depending on the truck.
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Is the 5.9 or 6.7 Cummins better?

To sum up, the more simplistic 5.9 fixed geometry turbo means that while it tends to be more reliable, the more advanced 6.7 variable geometry turbo gives better performance. The Exhaust Brake is a big part of why the 6.7 Cummins is such a powerful towing machine.
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Is the Ram 2500 diesel worth it?

If you need maximum performance out of your heavy-duty Ram, go for the diesel. It's a pricey option ($9,300 on the 2020 model) but the performance gains are worth it. Shelling out for the diesel swaps the gas V-8 and eight-speed auto for a 6.7-liter turbo I-6 and a beefed up six-speed automatic.
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Is it illegal to delete DEF?

There is no way around this; it is 100% illegal to tamper with or modify the emission system on your truck in any way. It isn't a state or local law (although those exist, as well), but Federal law.
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Is a deleted truck more reliable?

Benefits of a Deleted Truck

So a deleted truck is reported to offer some of the following benefits: Improved performance. They sound better. Reported improved reliability.
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How much does a DPF Delete cost?

How Much Does A DPF Delete Cost? Prices and service times vary on the type and year of the unit and the extent of the delete but roughly range from about $3000 to $10,000. This cost is often either the same or less expensive than replacing the after-treatment systems upon failure.
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Is Cummins or Powerstroke more reliable?

Powerstroke Diesel vs.

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.
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Why are Cummins so reliable?

Cummins began to dominate the market when it came to diesel engines for the automotive industry because of its reputation for longevity. The engine's head and block are constructed with cast iron. The crankshaft and the connecting rods are forged steel along with massive main bearings.
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How many miles will a Cummins diesel last?

Like the Duramax, Cummins diesel engines can be expected to last a long time. Between 350,000 and 500,000 miles is usually considered high mileage on a Cummins diesel.
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What year Cummins is best?

1994-1998 2500 & 3500

As far as performance potential goes, it doesn't get any better than the mechanical P7100 equipped versions of the 12-valve 5.9L Cummins. They're simple, rock-solid reliable, and can easily tick off a half a million miles if properly maintained.
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Which Cummins engine is the best?

The Cummins 6.7L Turbo Diesel is the most powerful engine option for RAM 2500 and 3500 pickup trucks. Producing up to 400 horsepower and 1,000 pound-feet of clean diesel torque, this powerhouse helps RAM deliver best-in-class towing.
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Does 6.7 Cummins have glow plugs?

Cummins engines do not have glow plugs. Instead of glow plugs, Cummins engines are equipped with a single heater grid as their heat aid. These grids are more reliable and work by heating all the heat coming into the air intake. Both the 5.9L and 6.7L Cummins engines come with a grid heat system.
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Is 6.7 Cummins or 6.7 Power Stroke better?

The current version of the 6.7 Powerstroke features close to 450hp with 935 ft-lbs of torque, while the latest 6.7 Cummins puts out about 400hp with 1000 ft-lbs of torque, so on paper, the numbers are very similar, but as the race to become the most popular diesel truck in America continues, it will be fun to see just ...
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How often should you change the oil in a 6.7 Cummins?

Straight out of the gate we recommend 6000 km (3700 mile) oil changes if you are running conventional oil 15W/40. This should be a safe interval for city driving, stop and go driving, and idling.
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How can I make my 6.7 Cummins run better?

Whether you are chasing power, towing capacity, or fuel economy, performance modifications are a great option to give your 6.7 Cummins a little extra bite while improving engine efficiency.
...
Supplemental upgrades for >500rwhp:
  1. Upgraded turbo.
  2. Lift pump.
  3. Fuel pump.
  4. Injectors.
  5. Head studs.
  6. Built transmission.
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Is buying a diesel truck worth it?

“Heavy-duty diesels—they hold their residual value better,” says Barta. “Customers really value that power and that additional towing capability and they're willing to pay for it.” According to Kelley Blue Book valuations, diesel trucks are consistently worth more than gas in the used market.
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Which is better Cummins or Caterpillar?

In terms of fuel efficiency, Cummins' engines are 6% better than Caterpillar . That's not the only area where CMI's coming out on top. It's taking share from CAT in other heavy-duty engines as well. Cummins is taking share from all its competitors, actually, as it's now the largest supplier to Paccar .
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How reliable is a turbo diesel?

Reliability is easy to achieve when your engine has been turbo charged. It is common for diesel trucks to exceed 250,000 miles before requiring a rebuild, as well as often exceeding 500,000 miles.
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