Can You Run 15w40 in a 6.7 Cummins? (Read This First!)

6.7 cummins is the name of a diesel engine that is mostly found in trucks. It is considered as one of the best engines for running a truck because of its massive horsepower and torque. But deciding the type of engine oil you need for 6.7 can be difficult. Today, we are going to discuss and find out whether one can run 15w40 engine oil in a 6.7 cummins diesel engine or not.

Can you run 15w40 in a 6.7 cummins?

It is possible to run 15w40 engine oil in a 6.7 cummins engine. In fact, the 15w40 variation of engine oil can increase the performance of the 6.7 cummins engine by keeping it free from wear and tear. It also provides additional protection against corrosion and sludge.

15w40 diesel engine oil can be used in a 6.7 cummins diesel engine. This variant of engine oil improves the overall performance of a 6.7 cummins engine effectively. First of all, it provides lubrication to all the parts of the cummins engine due to its balanced viscosity.

There are different brands of 15w40 engine oil available in the market that are suitable for 6.7 cummins diesel engine. Each of these oils has a unique solution technology embedded in it that enhances the health of a 6.7 cummins diesel engine.

15w40 diesel engine protects the cummins diesel against corrosion and rust. It also provides protection against wear and tear inside the engine. Using 15w40 diesel engine oil in your cummins engine will be a good decision in the long run.

Can I run Rotella t4 15w40 in 6.7 cummins?

6.7 cummins diesel engine can handle Rotella t4 15w40 effectively. In fact, rotella engine oil gives extra protection against wearing parts in a  6.7 cummins diesel engine. Many things can be said about the positive effects that rotella t4 15w40 engine oil has on a 6.7 cummins diesel engine.

Rotella engine oil is also capable of perfectly cleaning the 6.7 cummins diesel engine through lubrication. It also keeps the 6.7 cummins diesel engine safe against corrosion and rust. So you can run rotella t4 15w40 engine oil in a 6.7 cummins diesel engine without worrying about the side effects.

There are other healthy engine oil options available for a 6.7 cummins diesel engine. But rotella t4 15w40 engine is one of the best choices for this purpose. It has also got very good oil aeration system that is beneficial for a 6.7 cummins diesel engine.

Is 15w40 good for 6.7 cummins?

It is believed by experts that 15w40 engine oil is good for a 6.7 cummins diesel engine. This variant of engine oil holds all the required features a heavy duty diesel engine like 6.7 cummins engine needs. 15w40 diesel engine oil improves the performance of a 6.7 cummins diesel engine by decreasing chances of worn out engine parts. It does so by lubricating the engine properly.

15w40 engine oil also slows down the process of rust and corrosion by providing a 6.7 cummins engine protection against oxidation. Due to its high flowability, the 15w40 engine is capable of reaching all parts of the engine. The emission control system of the 6.7 cummins diesel engine so gets better when you run 15w40 engine oil in it.

So you can use 15w40 engine oil in your 6.7 cummins diesel engine because of the shear qualities it brings to the table. There are a very few engine oil better for a 6.7 cummins diesel engine than the 15w40 variant.

5 reasons why you can run 15w40 in 6.7 Cummins

There are a lot of reasons that enable you to run 15w40 diesel engine oil in a 6.7 cummins diesel engine. Let’s discuss in detail about them.

Good performance:

15w40 diesel engine is known for improving the overall performance of your 6.7 cummins engine. It works great as a lubricant by keeping all the engine parts clean and protects them against internal damages. The improved engine performance is one of the major reasons why you can run 15w40 diesel engine oil in a 6.7 cummins diesel engine.

Protection against corrosion:

15w40 diesel engine oil can keep your 6.7 cummins engine safe against corrosion because of its high flowability. The 15w40 variant of diesel engine is an very good engine cleaner. It leaves on part of the engine unclean. It protects your engine when it comes to oxidation process.

Balanced oil pressure:

Due to its perfect viscosity, the 15w40 engine oil reaches all the parts of the 6.7 cummins diesel engine quickly and effectively. It creates a balance oil pressure inside the engine. A balanced oil pressure is crucial for the good performance of the engine. If you are struggling to maintain a good oil pressure inside your cummins engine, then you should run 15w40 engine oil in it.

Protection against sludge:

15w40 engine oil does not breakdown easily even under high temperature. This means it will not create sludge on various parts of the engine when you run it in a 6.7 cummins diesel engine.

Recommended by Cummins:

The cummins company itself recommends you to run 15w40 diesel engine oil in a 6.7 cummins diesel engine. The viscosity and other attributes of 15w40 diesel engine oil make it a wise choice for a 6.7 cummins diesel engine according to Cummins company.

What oil does Cummins 6.7 recommend?

There are a lot of engine oils that Cummins recommend for their 6.7 cummins diesel engine. Let’s discuss in detail about some of them.

Valvoline 15w40 premium blue:

Valvoline 15w40 premium blue engine oil is one of the best oils recommended by Cummins for their 6.7 cummins diesel engine. Valvoline 15w40 premium blue engine oil is a high performance oil that can be used in various types of engine. It can effectively enhance the performance of your 6.7 cummins engine because of the features it provides.

You do not have to worry about changing your engine oil after you put valvoline premium blue engine in it due to the oil’s longevity.

Quaker 10w40 motor oil:

The 10w40 variant of Quaker state motor oil is another oil recommended by Cummins to be used in a 6.7 cummins diesel engine. Quaker 10w40 motor oil works good under both cold and hot conditions.

This diesel engine oil provides protection against corrosion due to the presence of additives in the oil. Balanced level of viscosity can also be found in quaker 10w40 engine oil  which improves the overall performance of the 6.7 cummins diesel engine.

Rotella 15w40 and 5w40 full synthetic:

Cummins also recommends you to use Rotella 15w40 full synthetic engine oil in your 6.7 cummins diesel engine. This oil provides extra protection against sludge and corrosion due to its superior technology. The rotella 15w40 full synthetic engine oil does well under harsh weather conditions too.

This variant of Rotella engine oil is also capable of maintaining balanced oil pressure inside the engine due to its good viscosity. The 5w40 variant of rotella engine oil is also recommended by cummins because of its high performance.

Schaeffer 5w40 full synthetic engine oil:

Using schaeffer 5w40 full synthetic engine oil in your 6.7 cummins diesel engine can significantly improve the engine performance. That is why it is highly recommended by cummins. This oil can improve the fuel economy of your truck by improving the engine’s oil consumption. It is also capable of performing under changing weather conditions.

Why does Cummins recommend Valvoline?

Valvoline engine oil is highly recommended by Cummins Inc. because of its performance and effectiveness. Let’s discuss in detail about why Cummins recommends Valvoline engine oil.

Longevity:

Valvoline engine oil is known for having a long life inside the Cummins diesel engine. It does not break down easily under high temperature and stays good for a long time. This is one of the major reasons why Cummins recommends valvoline engine oil.

Heat resistant:

Valvoline engine oil is a heat resistant oil which performs well under both hot and cold temperature. The heat resistant quality of valvoline engine oil has not gone unnoticed by Cummins as they recommend it for their 6.7 cummins engine.

Corrosion resistant:

Valvoline engine oil keeps your cummins engine against development of corrosion as it gives protection against oxidation process inside the engine. That is why Valvoline engine oil is recommended by Cummins.

Variation:

There are different types of engine oil manufactured by Valvoline that are suitable for Cummins diesel engines. Cummins Inc. has tested the Valvoline engine oils in their engines and found that it improves the performance of their diesel engines better than any other engine oil.

Final Thoughts

It is recommended by experts to run 15w40 engine oil in a 6.7 cummins engine. 15w40 engine oil can properly lubricate a 6.7 cummins engine because of its good viscosity. It also balances the oil pressure inside the 6.7 cummins engine. One can effectively use 15w40 engine oil in a 6.7 cummins engine.