The best oil for 6.7 Cummins
Are you having trouble choosing the best oil that would perfectly suit your 6.7 Cummins engine? Do you find it challenging to select the appropriate engine oil for your 6.7 Cummins engine? You can improve on your selection skill by paying attention to these guides.
Every truck owner knows the importance of good engine oil. Engine oil plays a huge role in determining the performance, durability, and output of an engine over time. Engine oil serves multiple functions. However, the most crucial role is to lubricate the parts of the engines that constantly experience friction while in use. This way, it reduces the friction and also the wear and tear tendencies.
The Cummins 6.7 Turbo Diesel Engine is one of the most powerful engine options that produces about 400 horsepower and 1,000 pound-feet of clean
diesel torque, and delivers the best in the towing class. With such a huge capability, the right type of engine oil must be used to ensure the engine’s continuous performance, output and durability.
As the Cummins 6.7 engine continues to perform its duties, The energy lost through friction and combustion between its mechanical parts causes the engine temperature to rise. Of course, this is another essential task for the engine oil as the engine oil provides part lubrication that helps to release the heat through the lubrication circuit.
Good engine oil also has cleaning abilities for your Cummins 6.7 engine as dust and combustion residues build up in the engine oil rather than clog the engine. As the engine oil continuously flows, it transports these impurities to the oil filter, where they are trapped.
The list below is a compiled list of some of the best oils for your 6.7 Cummins engine based on their features, effectiveness, safety, and value for money. Check it out!
Best overall & best synthetic oil
Shell Rotella T6 Synthetic 5W-40 Diesel Engine Oil
Shell Rotella T6 Diesel oil is recommended as the overall best one. It can stand the test of temperature changes and ensures the optimal performance and durability of your engine. You can be sure to never experience leaks with this engine oil.
- Value for money:
The amazing feature of this Diesel Engine oil makes it the overall best one. It is a fully synthetic motor oil with an exclusive triple protection technology. It contains advanced additives to protect your diesel engine against wear, oil breakdown, and deposits. It also provides an increased fuel economy and a better low-temperature flow without compromising the engine’s durability compared to conventional oils.
Shell Rotella T6 is suitable for older hard-working diesel engines and all modern low-emission heavy-duty engines. It is an excellent choice for diesel pick-up trucks, on-highway fleets, general haul, agriculture, construction, public transport operators, and motorcycles as it features less oil consumption.
As a heavy duty diesel oil, it works wonders for turbocharged cars. This oil can stand the test of both extremely hot and cold weather conditions. It is viscous and flows like mercury. It comes at a good price. With all its amazing features, it is a good buy as you do not have to break the bank to afford this oil. Although as great as this oil is, it is advisable to change the oil on a schedule.
Best diesel oil
Motul 8100 X-Cess 5W-40 Synthetic Diesel Engine Oil
This engine oil is great for turbo applications as you enjoy the benefits of less oil consumption, minimal oil losses and a better engine performance.
- Value for money:
If you are stuck with what diesel oil is the best buy, be sure to stick with Motul diesel oil. This Diesel oil is designed for modern and powerful cars with high displacement engines. It is equally suitable for leaded or unleaded gasoline, diesel and LPG. It is a full synthetic oil with a viscosity rating of 40 at normal operating temperature and a rating of 5 in cold temperatures. This viscous nature of this oil increases the resistance of the engine caused by the production of soot by direct Injection diesel engines. This Synthetic oil can be used in your 6.7 Cummins diesel engine and often provides a more superior mechanical performance over traditional motor oil.
Motul oil ensures an increased gas mileage and reduces the engine’s wear tendencies at extreme temperatures. Although it costs more than a conventional motor oil, it is worth buying. With the application of this engine oil, the obvious valve tapping noise that is very apparent when the engine is cold becomes quiet. After journeying for about 1000 miles, you can expect the oil to still look clean. It does not burn off quickly which saves you the stress of frequently topping the engine oil.
Best for all-weather performance
Valvoline Premium Blue SAE 5W-40 Full Synthetic Engine Oil
This oil guarantees engine durability and an overall performance in both hot and cold weather conditions. It Improves fuel economy compared to other conventional oil.
- Value for money:
It is normal to experience weather variations once in a while. Hot and cold weather changes are inevitable. However, it would be unwise to use your machinery only during a particular weather condition because you are trying to preserve its lifespan. Using the wrong type of oil can get you frustrated. Many thanks to Valvoline oil that is suitable for all types of weather conditions and gives your cummin 6.7 engine a great performance.
This oil is a full synthetic diesel engine oil that provides safety, performance and protection for your diesel and gas engines during freezing weather. It also enhances the engines thermal properties for hot Weather operations. It is specially designed for hard working equipment, heavy duty, pick up, and utility trucks both on road and off highway applications.
It has an excellent oxidation resistance that supports longer oil life in your heavy duty engines. It also provides wear protection for heavy-duty trucks and equipment. Although somewhat pricey especially for the quantity that this oil offers in its container, you can be sure to get the value for your money.
Delo 400 XLE 15W-40 Heavy Duty Diesel Engine Oil
This oil is pocket friendly and perfect for low-budget buyers. It comes at a very affordable price and offers your engine a high performance. It provides optimum service life and minimizes maintenance frequency. It also contributes to the maximum utilisation of your equipment and minimizes downtime.
- Value for money:
When it comes to low budget buys, this diesel engine oil is the right pick. You get all the results at an affordable price. Delo engine oil is designed to deliver longer oil and engine life.
The engine components are well protected against wear and corrosion by the application of this oil. It is formulated for on-highway applications. This oil helps to minimize downtime, reduce maintenance costs and extend equipment life.
It also provides a high performance piston deposit control. Its amazing oxidation performance provides turbocharger protection. Its high performing dispersant and detergent additives provide excellent diesel engine component protection.
Best engine oil & best for cold climate
Mobil 1 Formula M 5W-40 Synthetic Oil
Mobil oil provides great emission control and ensures adequate lubrication of the engine components. It increases fuel economy and reduces the engine’s wear tendencies.
- Value for money:
Over the years, Mobil products have continually gained recognition because of their consistency at quality production. This product is not left out as it is suitable for your Cummins 6.7 Engines.
This oil is a full synthetic diesel engine oil that provides you with optimal performance and protection for your diesel engines during cold weather.
It has an excellent fuel economy feature. It protects your engine components from wear and tear and does not compromise the engine’s durability. Application of this oil reduces the cost and frequency of maintenance of the engine’s components. It increases the engine’s lifespan.
What to look for in a good oil for 6.7 Cummins
The 6.7L Cummins Turbo Diesel engine is a sophisticated engine that offers more horsepower and torque. It requires a good engine oil for maintaining its efficiency, durability and for lubrication against wear and tear. Buying the appropriate engine oil for your 6.7 Cummins engine can be very exhausting with lots of options to choose from. We have listed the most important factors to consider when buying a good Diesel oil for your 6.7 Cummins.
A good engine oil suitable for Cummins 6.7 must be fully synthetic because it has fewer contaminants that lower the risk of engine sludge and buildup compared to conventional oil made from crude oil. It must protect your diesel
engine components against wear. It is also important that the engine oil features an increased fuel economy and less oil consumption. It should be viscous enough to withstand extremely hot and cold weather conditions.
A good engine oil must ensure a longer engine lifespan by reducing friction between the parts of the engine. It must clean the entire engine and prevent the engine from clogging and becoming damaged.
A good engine oil must also ensure proper lubrication of the engine to avoid serious mechanical damage.
A high-performance oil is man-made and contains chemical compounds
that has all the best parts of crude oil. When in use, it reduces discharges
that pollutes the atmosphere. It must also protect the engine against corrosion from fuel combustion that can damage metal parts in the engine. A good Engine oil also enhances engine sealing, and more specifically the sealing of pistons and cylinders.
Value for money
Despite all the features intended to make an engine oil the best, it is important that it is affordable. A good engine oil must contribute to the overall engine performance and reduce the cost of maintenance to the barest minimum by ensuring an excellent service delivery. It must last long to reduce the amount of time it would take to change the engine oil.
What grade of synthetic Engine oil is compatible with Cummins 6.7 Engine?
The 15W-40 grade is the right grade of engine oil for your Cummins 6.7 Engine as it works well in normal temperatures. It is thick in hot temperatures and also provides greater emission control, lubrication and engine protection. It is a high-performance engine oil that increases fuel economy and reduces engine wear.
What effect does extreme temperature changes have on a synthetic diesel oil?
During hot temperatures, the engine oil runs, while for cold temperatures the oil thickens. Synthetic oils do not often change consistency due to temperature changes. This means that the consistency of the synthetic oil is retained for a longer period in both high and low temperature conditions.
So, when you start your engine in either a cold or hot temperature environment, the lubricating film that is provided in the synthetic oil is likely to have remained in the parts of the engine regardless of ambient temperatures.
How often should you change your engine oil?
It is normal for engine oil to degrade and become polluted over time while in use. It is very important to change the oil at this time. Although, in trucks, cars and some other vehicles, you can find a driver’s manual that specifies the right miles to be covered before an engine oil should be changed. As controversial as this might be, you should pay attention to your engine as several other factors can alter the instruction on the driver’s manual such as freeway and urban driving, short trips and prolonged idling.
For an engine oil to truly serve all its purposes, you must be sure to check the oil levels regularly in order to top the oil level or change the oil when necessary. When an engine oil comes in contact with oxygen, oxidizes and supports corrosion of engine components. A good engine oil avoids costly repairs but must be adequately used to prevent serious engine damage.
Deciding the right engine oil to buy for your 6.7 Cummins is strictly your choice, but hopefully, you would make a great decision with these guides in mind.