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.

Subsequently, 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.

then, What is the best year Dodge Cummins to buy?

Known for its reliable Cummins engine and its power, Rams have been the favorite truck of diesel drivers since the 1980s. The truck has gone through many changes over the last 50 years, with some years being better than others. The best years for Dodge diesel trucks are 1996-1998, 2006-2007, and 2010-2011.

Thereof How many MPG does a 5.9 Cummins get? We own five Dodge 4×4 pickups with the 5.9L Cummins, and we are thrilled with all the trucks. All five trucks we own average 29 MPG highway, and 24 MPG in town. Cummins 5.9L has the fuel economy, speed, and the power to pull.

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.

16 Related Questions Answers Found

Is 100k high mileage for a diesel?

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. Anything over 350,000-miles is also regarded as high mileage for a Powerstroke diesel engine.

What is considered high mileage for a diesel van?

Today’s modern vans are engineered to last – and 100,000 miles showing on the clock is commonplace. There’s even stories of Transits reaching 200,000 and beyond – but if you are considering spending your hard-earned cash purchasing a ‘High Miler’, it can be a case of ‘buyer beware’.

What is the best year diesel truck?

Best Diesel Trucks You Can Buy

2006 and 2007 Chevy and GMC 2500 and 3500. …
2003-2004 Dodge Ram Heavy Duty. …
2008-2010 Ford F-250/F-350. …
2014 Ram 1500. …
2012 Chevy Silverado HD. …
1991-1/2 to 1993 Dodge Cummins. …
1999-1/2 to 2000 Ford Super Duty. …
2010 Dodge Ran 2500HD.

Which Dodge Cummins Engine is best?

Cummins 5.0L V8 TURBO

The Cummins 5.0L V8 TurboDiesel is the best Cummins engine for smaller trucks and drivers who don’t need as much pulling power. It utilizes a compacted graphite iron block for a durable construction that is still light enough for smaller applications.

What year 12v Cummins is best?

Registered. 1997 is the best full year you can buy. The 1998 can be more desirable IF you want quad cab doors.

What Dodge Cummins Engine is the best?

Cummins 5.0L V8 TURBO

Is 24v better than 12v Cummins?

When it comes to serious power and performance the 12v 5.9 Cummins takes the win. These engines are known to hold up better at extreme power levels when compared to the 24v engines. P7100 injection pumps on the 6BT are easier to mod and support the extra power.

How can I make my 5.9 Cummins more fuel efficient?

To restore your truck’s fuel mileage, you must change the “peak efficiency” of the motor to match your driving/towing RPM speed. Increase the low-end torque rise of your motor significantly improves fuel economy because the engine now does more work with less effort.

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.

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. …

What fuel mileage does a 6.7 Cummins get?

The Ram 2500 comes with a 6.7-liter Cummins inline-six turbodiesel that is known for its massive amount of torque. It’s paired with a six-speed automatic transmission. As tested in a four-door Laramie trim, the Ram 2500 manages 14 MPG overall.

Is it OK to buy a diesel truck with high mileage?

Generally speaking, diesel trucks are sold with higher mileage than the typical used vehicle. It is not uncommon to see a used diesel truck for sale with over 200,000 miles on it. Granted, diesel engines typically have better reliability than a gasoline equivalent, but high mileage remains a concern.

Do diesels need to be driven hard?

Driving an old diesel hard may well have shifted any soot build up but to clear any build up in the DPF a regeneration is required, it simply cannot be blown out even though some maintain it can, its an urban myth. Regens take place when required and are controlled by the ECU, you cannot force one yourself.

What’s the most reliable diesel engine?

What is the Most Reliable Diesel Engine Ever? The most reliable diesel engine ever made was the 5.9L Cummins 12-Valve 6BT. The 5.9L 12-Valve has million-mile durability. It came factory with a 230hp, 440lb/ft of torque and an inline P7100 injection pump.

Is it OK to drive a diesel short distances?

Diesel Rule 3: Don’t buy diesels for low mileage or inner city life. Also known as “diesel car city driving”, you want to avoid doing this. … Driving at low speeds and short distances clogs up your Diesel Particulate Filter (DPF) quickly.

Are Short Trips bad for diesel engines?

Short trips do not let the diesel engine get warmed up well enough to remove deposits and keep carbon from accumulating and being burnt off. That’s all really. You need at least 15-20 minutes of loaded running to get it to temp and say about 1 hour straight a month of highway driving minimum to keep it all happy.

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.

Should I buy a diesel truck as a daily driver?

This is why diesel trucks and cars tend to have greater capabilities than gas-powered cars. … Diesel engines provide owners with power, fuel-efficiency, and longevity. While these engines carry a stereotype of “heavy-duty,” diesel-powered vehicles are also suitable for commuters and everyday drivers.