If you’ve ever wondered who makes Duramax oil, then you’ve come to the right place. Duramax engines are known for their power and durability, and the oil that goes into them plays a crucial role in maintaining their performance. So, who exactly is responsible for creating the oil that keeps these engines running smoothly? In this article, we’ll delve into the world of Duramax oil and explore the manufacturers behind it. So, if you’re curious about who makes Duramax oil and want to learn more about the best options for your engine, keep reading!

Who Makes Duramax Oil? Facts, Brands, and More

Who Makes Duramax Oil?

Duramax engines are known for their exceptional performance and durability. To maintain the high-performance standards of these engines, it is crucial to use the right oil. Duramax oil is specially formulated to meet the specific requirements of these engines and provide optimal lubrication and protection. But who manufactures Duramax oil? In this article, we will explore the companies that produce Duramax oil and discuss their products in detail.

1. AC Delco

One of the leading manufacturers of Duramax oil is AC Delco. AC Delco is a trusted brand that offers a wide range of automotive products, including engine oils. They have a longstanding reputation for producing high-quality oils that meet the strict requirements of Duramax engines.

AC Delco offers various Duramax oil options, including conventional, synthetic blend, and full synthetic oils. Their oils are designed to provide excellent engine protection, thermal stability, and improved fuel efficiency. AC Delco also incorporates advanced additives to combat engine wear, reduce friction, and prevent deposit build-up.

2. Shell Rotella

Shell Rotella is another well-known brand in the automotive industry and a popular choice for Duramax owners. They have a dedicated lineup of oils specifically formulated for diesel engines, including Duramax engines.

Shell Rotella T6 Full Synthetic Diesel Engine Oil is a highly recommended option for Duramax engines. It provides superior protection against wear, deposits, and viscosity breakdown. The advanced additive technology used in Shell Rotella oils ensures optimal engine cleanliness and extends oil life, reducing the need for frequent oil changes.

3. Mobil 1

Mobil 1 is a brand renowned for its synthetic oils and is trusted by many Duramax engine owners. They offer a range of synthetic oils formulated to meet the demanding requirements of high-performance engines like Duramax.

Mobil 1 Turbo Diesel Truck Synthetic Motor Oil is specifically designed for diesel engines and is an excellent choice for Duramax engines. It provides exceptional thermal stability, wear protection, and enhanced oxidation resistance. Mobil 1 oils also offer improved fuel economy and engine cleanliness, ensuring a longer engine life.


AMSOIL is a well-established brand that specializes in synthetic lubricants, including oils for diesel engines. Their Duramax oil options are highly regarded by Duramax enthusiasts due to their superior performance and extended drain intervals.

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil is a popular choice for Duramax engines. This oil offers outstanding wear protection, minimizes deposit formation, and provides excellent protection in extreme temperatures. AMSOIL oils also help improve fuel efficiency and maintain consistent power output.

5. Valvoline

Valvoline, a trusted name in the automotive industry, also offers oils suitable for Duramax engines. They have a range of synthetic and conventional oils designed to meet the specific needs of diesel engines.

Valvoline Premium Blue Extreme Full Synthetic Diesel Engine Oil is a premium option for Duramax engines. It provides excellent oxidation resistance, thermal stability, and superior engine cleanliness. Valvoline oils also offer enhanced protection against wear, deposit formation, and viscosity breakdown.

Choosing the right oil for your Duramax engine is essential to ensure optimal performance, protect against wear, and prolong engine life. AC Delco, Shell Rotella, Mobil 1, AMSOIL, and Valvoline are reputable brands that manufacture Duramax oils to meet the unique requirements of these engines. Each brand offers a range of oil options, including synthetic and conventional blends, with advanced additives to provide outstanding lubrication and protection. When selecting Duramax oil, consider factors such as your engine’s needs, manufacturer recommendations, and your specific driving conditions. Regular oil changes with the recommended Duramax oil will help keep your engine running smoothly and efficiently for years to come.

Remember to consult your vehicle’s owner manual or seek professional advice to ensure you use the correct oil for your Duramax engine. Regular maintenance and using high-quality oil are vital for maximizing the performance and longevity of your Duramax-powered vehicle.

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Frequently Asked Questions

Who makes Duramax oil?

Duramax oil is manufactured by several reputable companies that specialize in producing high-quality lubricants for diesel engines. Some of the well-known brands that produce Duramax oil include Mobil, Shell, Valvoline, Pennzoil, and AMSOIL.

Where can I buy Duramax oil?

You can purchase Duramax oil from various authorized retailers and dealerships that carry automotive lubricants. Additionally, online marketplaces and e-commerce websites also offer Duramax oil for sale, providing convenience and a wide range of options to choose from.

What are the recommended oil change intervals for Duramax engines?

The recommended oil change intervals for Duramax engines vary depending on the specific model and usage. It is generally suggested to follow the manufacturer’s guidelines mentioned in the vehicle’s owner’s manual. However, a common recommendation for regular maintenance is to change the oil every 7,500 to 10,000 miles or every six months, whichever comes first.

Is using Duramax oil necessary for my Duramax engine?

While using Duramax oil is not mandatory, it is highly recommended by manufacturers to ensure optimal performance and longevity of your Duramax engine. Duramax oil is specifically formulated to meet the unique requirements of diesel engines, providing efficient lubrication, enhanced protection against wear and tear, and improved fuel economy.

What are the benefits of using Duramax oil?

Using Duramax oil offers several benefits for your Duramax engine. It helps to maintain engine cleanliness by preventing sludge and deposits, reduces friction for smoother operation, provides superior protection against wear and corrosion, and enhances overall engine performance. Duramax oil is also designed to withstand high temperatures and maintain its viscosity over extended periods, ensuring reliable lubrication even in demanding conditions.

Can I use synthetic Duramax oil in my Duramax engine?

Yes, synthetic Duramax oil is compatible with Duramax engines and is often preferred by many users. Synthetic oils offer enhanced performance and protection compared to conventional oils. They have improved thermal stability, better resistance to breakdown, and can provide superior lubrication even in extreme temperatures. It is important to choose the appropriate viscosity grade recommended for your specific Duramax engine.

Final Thoughts

Duramax oil is manufactured by ExxonMobil, one of the leading oil companies in the world. ExxonMobil has a long-standing reputation for producing high-quality lubricants, and their partnership with General Motors has resulted in the development of the Duramax engine. As a result, ExxonMobil’s Duramax oil is specifically designed to meet the specifications and requirements of these engines, ensuring optimal performance and protection. If you’re in search of reliable and top-notch oil for your Duramax engine, look no further than ExxonMobil, the company that makes Duramax oil.

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