Buyers agree that the classic Dodge Ram is the best of the diesel truck variants. Rams have been the preferred truck of diesel drivers since the 1980s, because to their dependable Cummins engine and power. Over the last 50 years, the vehicle has seen numerous alterations, with some years being better than others.
1996-1998, 2006-2007, and 2010-2011 are the finest years for Dodge diesel trucks. Among Dodge diesel trucks, these years have the fewest complaints and the most capabilities. These trucks receive rave evaluations from owners for their hauling capability and dependability.
A thorough review of their benefits and cons is required to understand why these years are the best among so many makes of Dodge diesel engines. Let’s take a look at what the best years in history have to offer.
Which Dodge diesel engine is the best?
This powerhouse helps RAM deliver best-in-class hauling with up to 400 horsepower and 1,000 pound-feet of clean diesel torque. The Cummins-powered RAM 3500 has a towing capacity of over 31,000 pounds when paired with the AISIN AS69RC six-speed automatic transmission.
This renowned engine offers unrivaled fuel economy and the industry’s best 15,000-mile oil change intervals. You can always rely on that kind of power and dependability.
Is 5.9 or 6.7 Cummins better?
When the 6.7 Cummins diesel first appeared in the 2007 Dodge Ram diesel pickups, it superseded the 5.9 Cummins diesel. The 6.7 engine had great hopes, as the 5.9 engine was known for its long-lasting performance and ability to resist high mileage. If the 5.9 was good, the 6.7 must be much better, right?
The core parts of the 5.9 Cummins were carried over to the 6.7 Cummins, which meant it was off to a good start because the 5.9 Cummins had a reputation for solid performance and a wide range of aftermarket parts and servicing.
The 6.7 Cummins comes with a comprehensive set of emissions control elements, the majority of which are not available on the 5.9 Cummins. An EGR (exhaust gas recirculation) system, a DOC (diesel oxidation catalyst), a NAC (NOx absorption catalyst), a DPF (diesel particulate filter), and, starting in 2013, an SCR (selective catalytic reduction) system are among these components (selective catalytic reduction). The SCR became standard in Cummins 6.7L engines after that.
Because of the EPA’s rigorous criteria, emissions control devices are required for modern diesel engines like the 6.7. Unfortunately, they do have an impact on performance.
The engine achieves a hotter combustion temperature without EGR, allowing it to burn fuel more thoroughly. This reduces particulate matter while increasing NOx output (Nitrogen Oxide). The issue with producing more NOx is that it causes excessive carbon buildup, which causes engine oil and coolant to degrade. The 5.9 did not have an EGR system, unlike the 6.7, and this likely contributed to its reputation for longevity, even with high miles on the engine.
In comparison to the 5.9 Cummins, the 6.7 Cummins produces a lot of torque at low RPM. This is due to the longer stroke in the 5.9 Cummins, which is 4.72 inches vs. 4.88 inches in the 6.7 Cummins.
Increased low-end torque translates to greater towing capability, so it’s easy to understand why this is a plus. However, it also implies that the cylinders will be under higher pressure. Head gasket failure, which is a typical problem on the 6.7 Cummins, can be caused by increased cylinder pressure. The 5.9 Cummins, on the other hand, experienced very few head gasket problems.
By 200,000 miles, a 6.7 Cummins that is regularly used to tow is likely to have head gasket troubles. Head gasket problems might occur considerably sooner in modified engines with performance enhancements. Another factor contributing to head gasket failure on the 6.7 Cummins is the smaller sealing gap between the water jackets and cylinders due to the bigger bore.
The fixed geometry turbo on the 5.9 Cummins varies from the variable geometry turbo on the 6.7 Cummins. With a 58mm compressor wheel, internal wastegate, and 58mm turbine wheel, the fixed geometry turbo on the 5.9 is a straightforward design. It has a reputation for being exceptionally sturdy and long-lasting as long as it does not receive a boost of 45 psi or higher on a regular basis.
However, because of the fixed shape design, you’ll most likely have low RPM turbo lag. There is no wastegate on the 6.7 Cummins turbo system, and the compressor wheel is 60mm in diameter. The turbine wheel’s exhaust flow varies, allowing the system to respond more quickly at lower speeds. There is no turbo latency, and it operates as well as a larger turbo unit at high RPMs.
To summarize, while the more basic 5.9 fixed geometry turbo is more reliable, the more complex 6.7 variable geometry turbo provides superior performance.
The Exhaust Brake is a significant reason why the Cummins 6.7 is such a strong towing machine. The exhaust brake is a device that produces a restriction in the exhaust system, resulting in significant backpressure, which reduces engine speed and provides additional braking. On this engine, using the exhaust brake at all times helps prevent the sticking turbo issue that is typical on these engines.
The 6.7 turbo system’s variable geometry design provides for forceful braking. This reduces the amount of wear on a truck’s standard brakes significantly. Braking ability is also an important part of towing ability.
Only part of the equation is being able to draw a large load. You must also be capable of stopping a heavy load. The variable geometry design’s aggressive exhaust braking capability provides for effective and powerful deceleration. As a result, the 6.7 Cummins-powered Rams are among the best in the hauling category.
The Bosch high-pressure common-rail fuel injection system is used in both the 5.9 and 6.7 Cummins engines. The injectors in the 6.7 Cummins, on the other hand, are rated for higher pressure and are specifically engineered to withstand it. They also use less electricity to operate.
Each injector in the 6.7 has been programmed to prevent them from switching between cylinders. On the other hand, the 5.9 Cummins engines allow for cylinder swapping. Injectors with a higher pressure allow for additional torque and power.
When an engine is running at high RPMs with full load, combustion duration is limited. The 6.7’s higher-pressure injectors pump fuel into the engine fast, resulting in maximum power.
In conclusion, the 6.7 Cummins outperforms the 5.9 Cummins in practically every category. It also emits less pollutants that are hazardous to the environment. The 5.9 Cummins, on the other hand, is a simpler piece of technology that provides near-unbeatable reliability, even in high-mileage trucks.
You can make an informed decision about whether you want to go with the latest diesel technology or remain with an older, but still highly durable engine now that you know the primary distinctions between the 5.9 and 6.7 Cummins engines. Whichever option you choose, ProSource offers the Cummins diesel components you need to get the most out of your truck’s performance and endurance.
What is the most reliable diesel truck ever?
Diesel fans are well aware that pre-emissions diesel trucks were more reliable in general. One of them is the LB7 Duramax. There are no EGR, DPF, or SCR emissions control systems on this vehicle. For an HD pickup, this truck was fairly lightweight, which allowed it to achieve up to 22mpg as long as it wasn’t towing or hauling. It also had the option of a heavy-duty Allison transmission to help in towing.
The 6.6L Duramax V8 with Bosch common-rail injection was used in the 2500 and 3500 HD models in this model year range, and it was unaffected by later emission systems. These trucks are recognized for being dependable workhorses that can produce up to 450 horsepower when properly programmed.
- For lots of towing capability, choose between an Allison six-speed automatic or a ZF-6 six-speed manual transmission.
Is the 2008 6.7 Cummins a good engine?
Is the 6.7 Cummins engine in the Dodge and Ram trucks reliable? Both yes and no. The B6.7 diesel engine does not have the same repute as older diesel engines such as the 5.9 Cummins or the 7.3 Power Stroke. Many current diesel engines, on the other hand, are in the same boat as the 6.7 Cummins. Many emissions-related technologies have the potential to kill these diesels. On the 6.7 Cummins engine, problems with the DPF and EGR are just a few of the emissions parts that might cause problems.
The 6.7 Cummins, on the other hand, is a reasonably reliable engine in general. This is especially true if you choose to remove certain emissions equipment, such as the DPF and EGR systems. However, be wary of any emissions or legal ramifications.
Otherwise, take good care of your B6.7 Cummins and it will provide you with a strong, dependable experience. It’s a good idea to run an oil analysis every now and again to confirm fuel dilution. Based on the findings, devise an oil change timetable. As 6.7 Cummins issues arise, keep up with other routine maintenance and stay on top of repairs.
The 6.7 Cummins, like other of the earlier diesel engines, may not have the same legendary reputation. The ISB 6.7L should last well over 250,000 miles if properly maintained. That’s a really respectable amount of time.
What is the best year for Dodge Ram?
Getting a new truck may be a thrilling experience, especially because there are so many options. Styles, add-ons, storage, and other features vary with year and brand. What are the finest years to search for when it comes to the Ram 1500 in particular?
The Ram 1500’s greatest years are 2020, 2019, 2018, and 2016. In 2018, the rearview camera was permanently installed. The rough-and-tumble 2016 model is ideal for adventures in the great outdoors. Ram added a number of small upgrades to the 1500 in 2019 and 2020 to improve your driving experience.
Let’s take a closer look at each of these Ram 1500 model years and see what makes them so special. Of course, each of these models is newer because developments in technology have made driving a Ram 1500 so much more enjoyable.
What year did Dodge switch to 6.7 Cummins?
Cummins introduces high-output engines, however only the NV5600 manual transmission is available in California.
The 6.7L Cummins engine was launched in the middle of the model year as a replacement for the 5.9L; it fulfills stricter pollution rules and comes standard with a diesel particulate filter (DPF).
In February of 2011, Cummins and Ram Trucks introduced a higher-output 800 lb-ft engine.
For the 2013 model year, Cummins offers three transmission options: G56 manual, 68RFE automatic, and Aisin automatic. Only Ram 3500 pickups with the High Output (H.O.) variant and Aisin transmission are available. On all Cummins engines, selective catalytic reduction (SCR) with the use of diesel exhaust fluid (DEF) becomes standard.
The Cummins High Output (H.O.) engine, mated to the Aisin transmission, boosts torque output by 15 lb-ft and is only available on Ram 3500 vehicles.
For the 2016 model year, H.O. Cummins gets 35 lb-ft, bringing peak torque to 900 lb-ft. The high-output engine is only available in Ram 3500 trucks with the Aisin AS69RC automatic transmission.
H.O. Cummins gains 15 horsepower and 70 lb-ft of torque, peaking at 1,000 lb-ft. There is no difference in horsepower, but the standard Cummins gains 50 lb-ft. There is no longer a manual transmission option.
The H.O. Cummins engine gains 20 horsepower and 75 pound-feet of torque. The standard Cummins output stays unchanged from prior model years. The Bosch CP4 injection pump has been phased out in favor of the more reliable Bosch CP3.
How many miles is a 5.9 Cummins good for?
Cummins engines are one of the most common diesel pickup truck engines. If you’re thinking about buying a new or used truck with a Cummins engine, you should find out how long it’s expected to survive. To find out for you, we looked through forums and the Cummins website.
The Cummins brand is known for its dependability and long-lasting engines. The 5.9-liter engine should last between 300,000 and 400,000 miles. With no modifications and adequate maintenance, the 6.7-liter engine costs around 350,000 dollars.
Diesel engines are designed to be powerful and provide a lot of power. You’ll be able to haul more, achieve better fuel economy, and have peace of mind. We’ll go over the differences between the 5.9L and 6.7L Cummins engines, as well as why Cummins engines are so popular.
Is the 6.7 Cummins a million mile engine?
Do you want to know how many miles a 6.7 Cummins gets on average? Perhaps you’re looking for a pre-owned Ram truck? Is a used 6.7 Cummins with over 200 miles still considered safe?
The Cummins 6.7 engine, according to Ram, is guaranteed for 350,000 kilometers. The mileage is guaranteed if all scheduled services are completed on time and the engine has not been modified for performance.
These engines are regarded as one of the three most reliable engines ever created, and they are frequently compared to competitors such as Isuzu Motors’ Duramax and Ford’s Powerstroke engines. A detailed oil examination is recommended if you want to determine the general condition of the engine before acquiring a used truck with this mileage.
Without requiring any considerable engine work, this will be able to provide particular clues regarding engine wear rate. You can determine the quantity of pollution and overall engine health by evaluating a sample of used engine oil.
Let’s take a look at some of the high-mileage components that will need to be inspected as the big 6.7 Cummins hits hundreds of thousands of miles.
Are Ram diesel trucks reliable?
The Dodge Ram 2500 has a 2.5 out of 5.0 reliability rating, which places it 13th out of 17 fullsize trucks. It has poor ownership expenses because the average yearly repair cost is $1,075. Although the severity of repairs is high, the number of faults is minimal, so major repairs for the Ram 2500 are uncommon.
