2019 Ram 2500 Cummins Oil Type

The 2019 Ram 2500 Cummins diesel engine requires an API CK-4 or SN rated motor oil. For the 6.7L Cummins engine, it is best to use SAE 15W40 synthetic blend or full synthetic heavy duty diesel oil with a viscosity grade of CJ-4. It is recommended that an oil additive such as MOPAR Diesel Particulate Filter Cleaner be used for improved fuel economy and performance when using this type of engine oil in your Dodge Ram.

Additionally, it’s important to adhere to the manufacturer’s maintenance schedule when replacing the oil filter and changing the engine oil to ensure maximum protection for your vehicle over time.

The 2019 Ram 2500 Cummins oil type is the SAE 15W-40 viscosity grade CJ-4 diesel oil. This motor oil was specifically designed for use in high performance engines such as the Cummins turbo diesel engine found in the Ram 2500. It provides a higher level of protection than traditional motor oils and helps to ensure that your engine will last for many years to come.

How to perfom a Complete Service on your 19-22 Ram 2500 5th gen Cummins!!

What Oil Does a 2019 Cummins 6.7 Take?

If you own a 2019 Cummins 6.7 engine, it is essential that you use the right oil to ensure that your engine runs smoothly and efficiently. The best oil for this particular model of engine is one that meets or exceeds the Cummins CES 20081 specification. This includes synthetic 5W-40 diesel oil from major brands like Castrol, Valvoline, Shell Rotella T6 and Mobil Delvac 1 ESP (Extra Service Protection).

These types of oils are formulated to provide superior protection against viscosity breakdown under extreme temperatures experienced by modern diesel engines without sacrificing fuel economy or emissions performance. In addition, they also help reduce wear and tear on internal components due to their increased detergent additive content.

What Oil Does a Ram 2500 6.7 Cummins Take?

The Ram 2500 6.7 Cummins is a powerful and reliable engine that requires the right oil to keep it running at its best. The recommended oil for this engine type is an API CJ-4 5W-40 synthetic diesel motor oil. This type of motor oil has been specifically formulated for use in high performance turbocharged engines such as the Cummins, providing superior protection against wear and reducing deposits which can clog fuel system components.

It also helps reduce emissions while maintaining excellent fuel economy, making it the perfect choice for your Ram 2500 6.7 Cummins needs. Additionally, using a quality synthetic diesel motor oil will help extend the life of your engine by protecting critical parts from premature wear caused by extreme temperatures or heavy load conditions encountered during off-roading or other demanding activities like towing heavy trailers over long distances.

Can You Run 15W40 in a 6.7 Cummins?

Yes, you can run 15w40 in a 6.7 Cummins engine. This type of oil is designed to provide superior protection and performance for your diesel engine – making it an ideal choice if you’re looking for optimal power and efficiency when running your 6.7 Cummins engine. 15w40 oil provides excellent wear protection while also helping to reduce sludge buildup and harmful deposits that can affect the life of your engine over time.

Additionally, this heavy-duty oil helps protect against excessive heat buildup which can lead to premature wear on vital components such as pistons, bearings, camshafts, lifters, and more. It’s also important to note that using 15w40 in a 6.7 Cummins will help ensure proper lubrication even during extended periods of idling or at higher RPMs when hauling heavy loads or traversing rough terrain. As long as the manufacturer’s recommended service intervals are followed properly and the correct viscosity grade is chosen for your application (15w40), then running this type of motor oil should provide superior performance for years to come!

What Oil is Recommended for Ram 2500 Diesel?

When it comes to oil for your Ram 2500 diesel, the best recommendation is a full synthetic 5W-40 motor oil that meets or exceeds the American Petroleum Institute (API) CJ-4 specification. This will ensure optimal performance and protection for your engine as well as provide better fuel economy and improved cold weather start-up. Synthetic oils are more resistant to breakdown under high temperatures than conventional petroleum based oils, making them an ideal choice for heavy duty diesel trucks like the Ram 2500 which typically operate in extreme conditions with high heat.

In addition, they offer superior wear protection and longer intervals between oil changes compared to conventional oils – up to 15,000 miles depending on driving habits and climate. For best results use a premium brand name full synthetic 5W-40 motor oil meeting API CJ-4 specifications when changing or topping off your vehicle’s oil in order to keep it running smoothly for years to come.

2019 Ram 2500 Cummins Oil Type

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2019 Ram 2500 Diesel Oil Change

The 2019 Ram 2500 Diesel requires an oil change every 5,000 miles or 6 months, whichever comes first. It is important to use the correct oil viscosity when changing your engine’s oil in order to ensure optimal performance and fuel economy. The recommended oil for this diesel truck is 5W-30 synthetic motor oil that meets American Petroleum Institute (API) SN Plus specifications.

Additionally, be sure to check and replace the vehicle’s air filter as needed with a genuine Mopar® replacement part for best results.

2019 Ram 2500 Cummins Oil Filter

The 2019 Ram 2500 Cummins Oil Filter is designed to protect the engine from dirt and debris, providing superior filtration for long-term performance. With a heavy duty construction and advanced filter media, this oil filter offers an optimal mix of protection and efficiency. The filter also features an anti-drainback valve that prevents oil drainback when the vehicle isn’t running, making it ideal for fleet vehicles or those who don’t drive their trucks frequently.

2020 Ram 2500 Diesel Oil Type

The 2020 Ram 2500 diesel pickup truck requires the use of 5W-40 synthetic motor oil. This type of oil is designed to provide extra protection for high-performance engines and withstand extreme temperatures, making it an ideal choice for a powerful vehicle like this one. Additionally, using synthetic oils can help extend engine life and reduce wear on internal components over time.


The 2019 Ram 2500 Cummins is an impressive piece of machinery that requires the care and attention to detail necessary for any vehicle. It’s important to know what type of oil you should use when servicing it, as this can make a big difference in the performance and longevity of your engine. The recommended oil for this model is 5W-40 synthetic diesel oil, which will ensure optimal engine protection and efficiency.

With proper maintenance and care, drivers can enjoy their Ram 2500 Cummins for years to come.


  • Zayn

    John Zayn Smith is a renowned truck enthusiast, automotive industry expert, and author. Beginning his career as a mechanic, Zayn's curiosity led him to explore all facets of the trucking world, sharing his insights through in-depth articles on TruckGuider.com. His knowledge spans truck mechanics, trends, and aftermarket modifications, making him a trusted resource for both professionals and hobbyists. Outside writing and mechanics, Zayn enjoys off-roading, truck shows, and family time. Follow his work for the latest in truck-related news and tips.

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