What Is a Good Dexos D Oil Equivalent?

DexosD is the latest engine oil by GM and has been serving for a good number of years. It can get complicated for most of us who aren’t well-researched about the best engine oils, and retailers can make a fool of you. It is not uncommon for many to accidentally pick up an unauthorized product when looking for alternatives.

So we have got the best DexosD oil equivalent selected. And we think GF-6 oils by ILSAC will work great for our cause. Why? Keep reading.

dexos d oil equivalent

What is Dexos Oil?

General Motors formed the Dexos brand oils to supplement its vehicles going back in time older than 2011. These oils are known to have been a game changer due to their outstanding suitability with the General Motors vehicles as they spiked the durability and enhanced the quality of the performance well.

GM resources can also come to great use when it comes to fleets. Without the knowledge of their usage, you can’t obtain their advantages. Knowing how to use them to exert maximum output can elevate your experience.

The Specs of Dexos D:

GM used Dexos oil only after carrying out an extensive range of tests on it. These tests consisted of the Stochastic Pre-ignition test, the M271 Sludge test, the sequence VID test, and the Aeration test. After a heavy row of test-taking and not to mention passing in each, the Dexos D was finally approved and certified as authentic diesel oil.

Newer automobile models manufactured after 2020 will need DexosD oil, the latest grade of Dexos oil, to power their light diesel engines. It satisfies the specifications of API SN and ACEA C5 and functions at its finest at a consistency of 0W-20. Seeing the trend toward smaller and lighter engines in modern automobiles, GM developed the DexosD to meet this need.

So the Dexos D equivalent oils come in two other forms. These are:

  1. Dexos1: These oils are meant for engines that run on gasoline.
  2. Dexos2: These oils work with the same application but only while racing.


GM created the first model oil through Dexos1 in 2010 to reinforce and elevate the way oils serve the engine. They developed the recommendations using tests that exceeded the requirements of ILSAC GF-5 and API SN. This marked the beginning of the production of Dexos1 oils, which a second and third generations succeeded eventually. The manufacturers consistently produced newer and better varieties of oiled.

Generation 3, which is the latest version of Dexos1, is not an immediate equivalent to Dexos D, but let’s check out the features to have an overall idea of Dexos1:

The features

  • It provides the utmost turbocharger defense and a spotless engine due to the opposition against oxidation.
  • It counters wear, tear, and resistance, which helps double the fuel saving and increase durability.
  • The engine is less damaged in cold weather, and starting is more effortless.
  • No lacquering or sludging for clean and long operating time


Dexos2, though not that different in sorts from Dexos1, the application is other. The requirements also vary. The dexos2 oils weren’t made to replace the Dexos1 but rather to meet new and different needs.

Therefore, the dexos2 is applicable in European locations since it meets the API SN and ACEA C2/A5/B5 standards for diesel and gasoline motors. Some parallels to dexos1 exist. However, this term was created for different markets.

Dexos2 are “high HTHS [high-temperature high shear] ( 3.5cP) SAE 5W-30 and 5W-40 based on API Group III base oils,” as described by additive manufacturer Lubrizol.

This iteration may also maintain the engine and save wear. Extra advantages include superior performance, a clean exhaust, and low fuel consumption.

The Dexos D Oil Equivalent

Dexos makes the most impact when you are driving a GM vehicle. When not driving a GM vehicle, you might look for something that best serves the other engine type. GF-6 is quite a well-known oil that ILSAC has manufactured. As the equivalent of Dexos D oil, GF-6 is also the latest version.

And there are also two specifications of the Equivalent:

  1. GF-6A serves 0W20, 0W-30, 5W-20 and 5W-30. 10W-30 was a part of the list of its applicators. But not anymore due to some quality factors that the manufacturers have acknowledged.
  2. GF-6B serves 0W-16.

GM engines test Dexos in all their tests and such. The way they calibrate is also no bother at all. According to their testing charts, the Dexos oils pair well with the standards and requirements of GF-6 oils. While some specifications in the results of the tests vary, they are still stably compatible with each other.

Testing to find the Equivalent:

Dexos has some strict restrictions in terms of tests, so when the bench test passes, that is just the beginning. To test GF-6 as an equivalent to DexosD then, you have to undergo the following tests:

  • Sequence IIIG: A engine hygiene test done by a Chrysler engine
  • Sequence IVB: A wear test is done by a Toyota engine
  • Sequence VH: A low-temperature sludge test done by a Ford engine
  • Sequence VIE, VIF in GF-6B – A fuel economy test done by a GM engine
  • Sequence VIII – Corrosion test with a single-cylinder engine.
  • Sequence IX – LSPI, low-speed pre-ignition test done by Ford engine
  • Sequence X – Chain wear test done by a Ford engine

European Equivalent As for European auto brands, ACEA oils can undergo similar tests but require different engine tests. ACEA is starting to use the tests GF-6 goes through. So it is somewhat closer as an alternative to Dexos oils as the differences in their examinations are getting bridged.


Is Dexos D the same as Dexos?

GM Dexos1 has manufactured motor oils specifically for gasoline engines, while DexosD is only useable for moderate diesel engines.

Is Dexos 2 backward compatible?

With the GM-LL-A-025 and GM-LL-B-025 approvals still in effect until 2010, you may use engine oil meeting the Dexos2 standard in almost all Opel vehicles where the Dexos1 certification is not explicitly needed.

What is the difference between Dexos and regular oil?

Dexos oil can make fuel consumption more proficient and prolong the lifespan of the emission scheme of the car or truck. Oil changes become less frequent as the intervals extend, and so does the vehicle’s lifespan. Regular oil isn’t always synthetic, but Dexos is all the time. Most cars have been using Dexos oil since 2011. Oil with a lower viscosity may withstand engine combustion and heat for long durations.

Final Verdict

Almost all vehicles have used Dexos oil for more than a decade. It has been one of GM’s finest creations due to its effectiveness and lesser fuel consumption. DexosD is its latest creation, and it works amazingly for diesel engines. But since it can’t always be compatible with all vehicles, GF-6 oil specifications can work as a great alternative. We hope you got your awaited answer.

Dan Jones is a car enthusiast and has been involved in the automotive industry for the last 10 years. He has a practical knowledge of vehicles and vehicle parts. Besides, he spends most of his time in the garage and deals with various car problems.