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Which is better Duramax or Cummins?

Which is better Duramax or Cummins?

More horsepower means faster acceleration whether you’re towing or not. The current Duramax 6.6L L5P diesel wins this category with 445 horsepower. The current 6.7L 24V Ram Cummins diesel engines produce 400 horsepower. Historically, horsepower has swayed slightly in favor of the Duramax versus the Cummins line.

Subsequently, What are the problems with the 6.7 Cummins?

A few issues that may occur with the 6.7 Cummins turbo include: Leaking oil seals . Worn bearings (too much shaft play) Sticking VGT parts.

Dodge, Ram 6.7 Diesel Turbo Failure Symptoms

  • Slow spool.
  • Poor performance.
  • Excessive smoke from exhaust.
  • Whining sounds.

then, Why did Nissan get rid of Cummins?

But the decision to ax the diesel motor is telling: An oil-burner from a brand like Cummins was supposed to be a coup for Nissan, a way for it to make headway in a market that heavily favors trucks built by American manufacturers.

Thereof How many miles will a 6.7 Cummins diesel last? Ram claims the Cummins 6.7 engine to be good for 350,000 miles. The mileage is guaranteed if the scheduled services has been carried out timeously and no performance modifications have been done to the engine.

Is Cummins the best diesel engine?

A Cummins diesel engine is recognized around the world as a superior truck engine not only because a Cummins engine will have the horsepower and torque a work truck needs to tow a hefty load, but these engines are also noted for unmatched durability.


17 Related Questions Answers Found

Is deleting a 6.7 Cummins worth it?

To put it bluntly, no, you should not remove the emissions equipment from any diesel pickup. Removing emissions equipment also voids the vehicle’s factory warranty. …

How much boost can a 6.7 Cummins handle?

How much boost can a stock 6.7 Cummins handle? The stock head bolts should be good up to about 45psi back pressure, and 38 psi boost.

What is the life expectancy of a 6.7 Cummins?

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

Is Nissan discontinuing the Cummins?

The Nissan Titan XD Cummins is dead after four years of production. Starting in 2020, the Cummins turbodiesel 5.0-liter V-8 will no longer be available in Nissan’s full-size pickup.

Did Nissan discontinue the Cummins?

Nissan will stop production of the Titan XD with the 5.0-liter Cummins diesel V-8 in December 2019. The regular-cab versions of both the Titan and the Titan XD are also casualties of a 2020 refresh that will be revealed later this year, Nissan spokesperson Wendy Orthman confirmed to C/D.

Why do Cummins last so long?

Dodge was brilliant to source engines for their light duty trucks from Cummins, a company that’s dominated the heavy industry diesel engine segment forever — and Cummins gave the Ram a very tough motor. … So the real reason these trucks will continue to live forever is because there’s no way to replace them.

How long will a Dodge Cummins diesel last?

The Cummins brand is extremely reliable and prides itself on long-lasting engines. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles. The 6.7-liter engine ranges in the middle of that at 350,000 with no modifications and proper services. Diesel engines are made to be powerful and give high output.

Is 200k miles too much for a diesel?

As a result of this, Prosource Diesel reports, it’s not all that uncommon to come across a used diesel truck with upwards of 200,000-miles on its odometer. … According to Prosource Diesel, anything over 350,000-miles is considered high mileage for a used diesel pickup with a Cummins or Duramax engine under its hood.

Is 5.9 or 6.7 Cummins better?

The 5.9 Cummins offers a fixed geometry turbo, which differs from the 6.7 Cummins variable geometry. … 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.

Is owning a diesel worth it?

Technically speaking, buying a diesel-powered car is worth it if you drive over 10,000 miles per year – and mostly on the highway – given that diesel engines burn fuel slower, which leads to better efficiency and overall longevity.

How long will a Cummins diesel engine last?

The Cummins brand is extremely reliable and prides itself on long-lasting engines. The 5.9-liter engine can expect to churn out 300,000 to 400,000 miles. The 6.7-liter engine ranges in the middle of that at 350,000 with no modifications and proper services. Diesel engines are made to be powerful and give high output.

Is it worth deleting a diesel truck?

While your exhaust might be a smidge dirtier, if you opt for a DPF delete kit, it might be worth the tradeoff. Deleting your DPF can help boost fuel economy AND give you more horses to the wheels. … This factory-installed system helps to reduce exhaust emissions by recirculating exhaust back into your engine for reuse.

Are DPF Delete Kits illegal?

Well, according to Section 203 of The Clean Air Act, it is illegal to tamper with, remove or be involved in the deletion knowingly or unknowingly of the DPF system of a truck. … Furthermore, it is also illegal to use a DPF removal service provider to do this for you.

Is DPF Delete worth it?

Removing the DPF itself will improve turbocharger efficiency (less back pressure) and of course there will be no more regens required. Long term, you won’t be facing DPF clogging problems which can be expensive post warranty.

What is high mileage for a 6.7 Cummins Diesel?

Cummins is the brand of engine found in the Dodge diesel and Ram diesel truck lines. 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.

How much HP can the 68RFE handle?

This kit re-works the valvebody and TCM to where the 68RFE can live at 500 to 550 hp, but any more than that and the truck owner will have to start delving deep into the transmission. As of press time, there are 68RFEs that are handling nearly 1,000 hp, but we can tell you they’re not cheap to buy—or build.

How many miles can 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.

How often should you change oil in a 6.7 Cummins?

6.7L Cummins Maintenance Schedule

Service Procedure Interval(s)
Replace engine air filter 30,000 miles/24 months
Change engine oil & oil filter 2007.5 – 2012 7,500 miles/6 months
2013 – 2019 15,000 miles/6 months/500 hours
Replace crankcase ventilation (CCV) filter 2007.5 – 2018 67,500 miles/54 months

How many miles is too many for a Cummins?

Dodge states that the Cummins is good for 350,000 miles before major overhaul. Chevy and Ford say 250,000 miles for their diesels.

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