Top 6 Best Oil for 6.7 L Cummins Diesel Engines
If you are the owner of a 6.7L Cummins diesel engine, it is important that you use the right type of oil in order to get the most out of your vehicle. In this blog post, we will be discussing the 5 best oils for 6.7L Cummins engines and explaining why each one is a great choice. Keep reading to learn more!
Click here to skip to our recommended pick!
- SAE: 5W-40
- API: SN PLUS, API SN and all previous categories
- Brand: Pennzoil
- Value for money: 🔥🔥🔥🔥🔥
- Purchase link: Buy your Pennzoil Platinum Euro Full Synthetic 5W-40 Motor Oil at Amazon!
- SAE: 15W-40
- API: CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4
- Brand: Shell Rotella
- Value for money: 🔥🔥🔥🔥
- Purchase link: Buy your Shell Rotella Synthetic Blend 15W-40 Diesel Engine Oil at Amazon!
- SAE: 15W-40
- API: all API-SN/RC and GF5
- Brand: Valvoline
- Value for money: 🔥🔥🔥🔥
- Purchase link: Buy your Valvoline Premium Blue One Solution SAE 15W-40 Diesel Engine Oil at Amazon!
- SAE: 5W-40
- API: CF/SN, ACEA A3/B4
- Brand: Castrol
- Value for money: 🔥🔥🔥🔥
- Purchase link: Buy your Castrol EDGE 5W-40 Advanced Full Synthetic Motor Oil at Amazon!
- SAE: 5W-40
- API: API-Licensed
- Brand: Mobil 1
- Value for money: 🔥🔥🔥🔥
- Purchase link: Buy your Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40 at Amazon!
- SAE: 5W-40
- API: API-Licensed
- Brand: Poyal Purple
- Value for money: 🔥🔥🔥🔥
- Purchase link: Buy your Royal Purple SAE 5W-40 High Performance Synthetic Motor Oil at Amazon!
Our Overall #1 Rated Pick
Pennzoil Platinum Euro Full Synthetic 5W-40 Motor Oil
Key Features
- Protects against wear, deposits, and oil breakdown
- 5W-40 formula
- Better fuel economy
- Excellent performance in extreme temperatures
- Superior wear and corrosion protection
Pennzoil Platinum Euro SAE 5W-40 Full Synthetic motor oil with PurePlus Technology is a full synthetic blend designed to have better low temperature stability than conventional gas derived oils while still providing sufficient lubrication during warm weather conditions. This means you can take your car on long trips without worrying about engine break downs due its superior oxidative braking system which helps prevent overheating!
Cummins 6.7 L Engine Overview
Cummins 6.7 L diesel engines are used in various Dodge Ram models including the 2009-2012 Ram 3500, 2010-2012 Ram 2500, 2012-2013 Ram 4500 and 4100, and 2013-2014 Ram 3500 cab chassis. These engines are also popular for use in Ford Super Duty trucks including the 2009-2010 Ford F-250, 2011-2014 Ford F-350, 2012-2013 Ford F-450, 2013 Ford F-550 Super Duty cab chassis models.
The Cummins 6.7 L diesel engine produces 350 horsepower and 650 lb.-ft. of torque at 1,600 rpm. This engine is sometimes called the “Bigger Dog” because of its impressive torque and horsepower ratings. The Cummins Turbo Diesel engine is considered to be one of the best available for power and reliability.
Oil For Cummins 6.7 L Recommended by Manufacturer
It’s hard to decide which oil is best for your 6.7 L Cummins diesel engine because there are so many different kinds in the market. You should check with your manufacturer or dealer to find out what oil is recommended by them. However, you can also read the following information and our recommendations in order to help you come to a decision.
SPECIFICATION
The Mopar API Certified SAE Engine Oil meets the requirements of Chrysler Material Standard MS-6395 by Dodge, such as being used in conjunction with Pennzoil, Shell Rotella.
VISCOSITY GRADE
The best engine oils for your car are the 15W-40 and 5W-40. Choose 15W-40 when it’s colder than 0 degrees Fahrenheit, while other times you should use their respective grades of oil that maintain optimal operating temperature ranges in different conditions.
CAPACITY
The popular engine for trucks and cars alike, the 6.7 Cummins needs 12 quarts of oil during an official change-over process so there are no leaks or other problems that may arise from this type replacement procedure.
Oil For Cummins 6.7 L by Mileage
Cummins 6.7 L engines are some of the best diesel engines on the market, but they do have their fair share of problems. If you own one, or are looking to purchase one, it will be extremely important for your engine’s health to make sure you are using the correct type of oil for your Cummins diesel engine.
Oil is a critical part of Cummins diesel engine’s operation. If the oil in the Cummins diesel engine becomes too thin, dirty, or coolant-laden, it can result in vital damage to your power plant. One way you will be able to tell if there is something wrong with your Cummins oil is by monitoring its viscosity. If your Cummins 6.7 L oil becomes too thin, then it is recommended that you change the oil in the engine immediately to prevent any further damage.
The viscosity of diesel engine oil changes with its temperature, so before you go ahead and purchase some Cummins 6.7 L motor oil for your car, make sure you know what the cold and hot viscosities are. Most Cummins engine oil containers will list these numbers on the back of their packaging, as well as offering you a few different types to choose from (multi-grade, straight grade).
Multi-grade means that the viscosity grades can change at certain temperatures – for instance, 10W-30 oil has a lower viscosity at cold temperatures than it does at high. Straight grade means that the viscosity of the Cummins engine oil is constant over its temperature range – for instance, 0W-30.
The best way to put this information to use is by checking your owner’s manual or calling up the manufacturer of your Cummins engine to find out what the cold and hot viscosities for oil in your engine should be.
It is important to use the proper oil for diesel engines. Specially formulated oils are used in most newer engines. However, some older diesel vehicles may require conventional lubricating oil or even heavier grades; this information can be found in an owner’s manual, on a sticker somewhere on the vehicle or in service records. It is important to follow the manufacturer’s recommendations when it comes to oil, especially if high mileage is a concern.
High mileage vehicles are more likely to require extra-heavy duty motor oils that have a high viscosity number. This is because the engine has been subjected to more heat and pressure over a longer period of time, which contributes to a thicker oil film in certain places within the engine. On the other hand, newer vehicles do not usually require this type of thick lubricant; using one can actually contribute to additional wear and could potentially cause serious damage.
Conventional oils are often recommended for older vehicles in order to help save money in the long run. This is because they do not cost as much as extra-heavy duty oils. However, these types of oil can contribute to a higher level of wear, especially when used in the newer engines that require a lighter weight oil. In fact, manufacturers will void their warranty if conventional oil is used in new diesel engines.
Best Oil For Cummins 6.7 L
The top best product [hide]
Pennzoil Platinum Euro Full Synthetic 5W-40 Motor Oil
Shell Rotella Synthetic Blend 15W-40 Diesel Engine Oil
Valvoline Premium Blue One Solution SAE 15W-40 Diesel Engine Oil
Castrol EDGE 5W-40 Advanced Full Synthetic Motor Oil
Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40
Royal Purple SAE 5W-40 High Performance Synthetic Motor Oil
How to Change Oil in 6.7 L Cummins?
Motor oil serves a vital role. If it fails, the entire engine fails. That’s why changing the oil is a simple process that takes about 15 minutes to complete. After you get your new motor oil and some tools, follow these instructions:
- Start by chocking the rear wheels on both sides of the vehicle, using either a chock or a board.
- Next, crank the engine with the parking brake engaged for about 10 seconds so it will build up hydraulic pressure. Then turn the key off and wait until all of the hydraulic pressure is relieved from the oil pump before continuing.
- Drain most of your old motor oil by removing the drain plug on the bottom of your engine block. The drain plug has a magnet attached to it which gathers any metal shavings coming from inside of your engine as you remove this plug. This way, if there is a bad piece of steel floating around inside, it will collect in that magnet and not circulate through your entire engine causing damage.
- After that’s done draining, use a wrench to loosen the oil filter. But make sure you don’t remove it yet, because there will still be motor oil in the line between the engine and this filter. After a few minutes, when no more pressure is coming from your old filter (which indicates that everything is drained), you can loosen it up and remove it completely.
- Now, open up your new oil filter’s packaging before removing its cap with a wrench or ratchet. If you want to be extra careful about spilling anything inside of your engine bay, try changing this part over some newspaper or an old t-shirt to catch any loose drips or spills. Once the cap has been removed, insert the end of your funnel into the new oil filter until it stops on what remains of the old seal.
- Now open your new oil filter’s packaging and pour its entire contents into your engine through your funnel until it reaches the level designated on the side of your engine’s dipstick (which you will pull out to measure how much oil is inside). It takes about 3 quarts to completely fill up an empty 6.7 liter Cummins engine block. Add less if it isn’t empty, because you don’t want your car running low on motor oil while at high speeds or driving long-distances.
- Once that’s done filling up, close off the cap making sure no extra holes are exposed other than that one which sits in the top of your new filter, and tighten it down using a wrench or ratchet.
- Now wipe all of your dirty fingerprints off of the filter and surrounding areas, re-install it by twisting clockwise until you feel resistance. After that, tighten down your drain plug with your wrench or ratchet until none of its head protrudes above the opening (about 1/4 inch is enough). Then fill up the top half of your engine’s dipstick tube to signal that it needs oil checked at a later date.
- Finally, check under your vehicle for any leaks around the new oil filter or drain plug, then lower it back down onto its four tires and remove any chocks or boards holding them in place. Once that’s done with, start up your Cummins engine again and let it idle for a minute or two with the heat on high, then check underneath it for leaks again.
This process will ensure all of your internal engine parts have been lubricated and cooled down before you proceed to start up your vehicle and begin driving.
