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, What is considered high mileage on a 6.7 Cummins?

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, 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.

Thereof What Dodge Cummins Engine is the 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.

How many hours will a Cummins 6.7 last?

The engines usually last 20,000 hrs, or more with decent maintenance. A cummins with 5000 hrs is nothing, and in equipment they can do a lot of idling.

16 Related Questions Answers Found

How many miles can a Dodge Ram 2500 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 it worth buying a high mileage diesel truck?

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.

What is considered high mileage on a diesel truck?

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.

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.

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 many MPG does a 2021 Dodge Ram 2500 diesel get?

Performance and Fuel Economy

The EPA doesn’t evaluate fuel economy for heavy-duty trucks but when our RealMPG team tested a Ram 2500HD Power Wagon with 4WD and the Crew Cab body style, it returned 10.2/15.3 mpg city/highway.

Which is better Hemi or Cummins?

Overall, the gas HEMI engine provides the best gas horsepower among 250/2500 pickups — and more payload capacity than the Cummins — but the turbo diesel outperforms it with mountains of torque and more maximum towing capacity.

What is the most reliable diesel truck 2021?

Best Diesel Trucks

2021 Ford F-150. Overview. …
2022 Ram 1500. Overview. …
2021 Chevrolet Silverado 1500. Overview. …
2021 Jeep Gladiator. Overview. …
2022 Ford Super Duty F-350. Overview. …
2021 GMC Sierra 1500. Overview. …
2021 Chevrolet Colorado. Overview. …
2022 Ram 2500. Overview.

What is the most reliable diesel truck engine?

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.

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’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.

How many miles per gallon does a Dodge Ram 2500 diesel get?

Industry Experts. Motor Trend magazine lists an average of 15.7 miles per gallon on the highway for the Dodge Ram 2500.

Is the RAM 2500 reliable?

The Dodge Ram 2500 Reliability Rating is 2.5 out of 5.0, which ranks it 13th out of 17 for fullsize trucks. The average annual repair cost is $1,075 which means it has poor ownership costs. While the severity of repairs is high, the number of those issues is low, so major repairs are infrequent for the Ram 2500.

Is it bad to only drive a diesel truck short distances?

Short runs are not good on any internal combustion engine. As stated earlier it’s best if they come up to operating temperature before being shut off again.

What is wrong with EcoDiesel?

On the 3.0 EcoDiesel the EGR cooler is prone to cracking. Fortunately, in October of 2019, FCA issued a recall for 108,000 EcoDiesel Ram’s due to cracking EGR coolers. FCA claimed that hairline cracks in the EGR cooler could cause coolant to leak into the engine bay and cause fires.