Skip to content

Who Makes Dexos Oil for GM?

General Motors (GM) does not manufacture Dexos oil themselves. They have licensed the Dexos trademark to a number of different oil companies, who then manufacture and sell Dexos oil under their own brands.

Some of the major oil companies that manufacture Dexos oil include:

  • ExxonMobil
  • Castrol
  • Pennzoil
  • Shell
  • Quaker State
  • Valvoline
  • Mobil 1
  • Amsoil
  • Royal Purple
  • Liqui Moly
  • Lucas Oil

When choosing Dexos oil, it is important to choose a reputable brand that has a good track record of quality. You can find reviews of different Dexos oil brands online to help you decide.

It is also important to ensure that your Dexos oil is the correct viscosity for your vehicle. The viscosity of an oil refers to its thickness.

The correct viscosity will depend on your vehicle’s engine type and operating conditions. You can find the recommended viscosity for your vehicle in your owner’s manual.

Using the correct Dexos oil in your GM vehicle can help to improve its performance and longevity. It is also important to change the oil according to the manufacturer’s recommendations. This will help to keep your engine running smoothly and prevent costly repairs.

Understanding the Need for Dexos Oil

Before we reveal the manufacturers behind Dexos oil, it’s crucial to comprehend why such a specification was even needed. GM vehicles, renowned for their performance, durability, and efficiency, require top-tier lubricants to maintain optimal performance.

Dexos oil was introduced to ensure consistent oil performance, reduce engine deposits, and improve fuel efficiency.

Licensed Producers of Dexos Oil

The production of Dexos oil isn’t confined to one single company. Instead, GM licenses the Dexos specification to various oil manufacturers who produce it according to the stringent guidelines set by GM. Some of the major licensed producers of Dexos oil include:

  1. Mobil 1: A name synonymous with quality lubricants, Mobil 1 is one of the premier producers of Dexos oil. Their state-of-the-art manufacturing processes ensures that the oil meets GM’s stringent requirements.
  2. Royal Dutch Shell: Another titan in the oil industry, Royal Dutch Shell, is licensed to produce Dexos oil. Their commitment to innovation and quality makes them a trusted choice for many GM vehicle owners.
  3. Valvoline: With over 150 years in the business, Valvoline’s expertise in producing high-quality lubricants is undeniable. They are also a licensed manufacturer of Dexos oil, adhering to GM’s exacting standards.
  4. Pennzoil: Known for their pure plus technology, Pennzoil is another trusted name in the Dexos oil production lineup.

Ensuring Authenticity: Recognizing Genuine Dexos Oil

With multiple manufacturers producing Dexos oil, how can one ensure they get the genuine product? The Dexos logo is a seal of authenticity.

This logo, prominently displayed on the oil container, guarantees that the product inside meets the requirements set by GM. Vehicle owners must look for this logo when purchasing oil to ensure the longevity and performance of their GM vehicle.

The Future of Dexos Oil in GM Vehicles

The evolution of automotive technology necessitates continuous advancements in associated products like lubricants. As GM vehicles continue incorporating cutting-edge technologies, the Dexos specification will evolve.

Manufacturers like Mobil 1, Royal Dutch Shell, Valvoline, and many more are poised to innovate and adapt, ensuring that GM vehicle owners always have access to the best possible lubricant.


The production of Dexos oil is a collaborative effort between GM and several esteemed oil manufacturers.

While GM sets the guidelines, licensed producers like Mobil 1, Royal Dutch Shell, Valvoline, and Pennzoil bring their expertise and commitment to quality to the table.

As the automobile landscape transforms, this partnership ensures that GM vehicles are always powered by the best.