Why Should You Use Dexos Oil? What Will Happen If Not Using?

Do you believe that all lubricants are the same?

You could assume that it doesn’t matter what you put in your car, whether it’s traditional or synthetic mixtures.

But it’s time to reconsider.

To fulfill rigorous pollution laws and boost engine efficiency, oil compositions are always developing to better technology.

General Motors (GM) has released a new edition of their Dexos® technology, which has pushed the gasoline engine market into new terrain.

Dexos oil is a type of motor oil that fits a certain set of criteria.

Dexos oil is also carefully prepared for optimum lubrication, sludge reduction, friction level moderation, and temperature management, the latter of which is especially crucial in cars equipped with turbochargers or superchargers, which generate greater heat.

Why Do You Need Dexos Oil?

For any GM engine product that requires it, you should use Dexos authorized oil. Dexos oil is a type of motor oil that fits a certain set of criteria.

Oils with the Dexos specification exceed severe requirements, allowing your vehicle to meet the most recent emissions rules while also improving fuel efficiency.

What Happens When You Don’t Use Dexos Oil?

When GM states Dexos is “recommended” for 2011 and newer GM cars, it implies that if you don’t use Dexos or a synthetic oil that matches Dexos criteria, your warranty may be canceled if your engine has oil-related damage.

Why Did GM Create the Dexos Specification?

As vehicle manufacturers strive to fulfill tougher pollution rules and higher fuel efficiency goals, they are developing increasingly complicated engines.

The oil standards that apply in the United States also apply in France, South Africa, and Japan, thanks to GM’s Dexos specifications, which were created to create a worldwide standard for its cars.

Audi, BMW, Mercedes-Benz, and Volkswagen are among the companies that issue special oil specifications.

However, GM’s decision to reduce the number of recommended oil standards from five to two – dexos1 for gasoline engines and dexos2 for types of diesels – appears to have caused even more uncertainty among drivers.

What Does It Take to Get an Oil Dexos-Licensed?

Oil makers must pay a licensing fee and complete a program managed by The Center for Quality Assurance to have their oil Dexos-licensed by GM.

Before final licensing, this Dexos licensing scheme requires oil producers to be facility accredited and submit to product testing.

You may either think that GM is safeguarding your engine by establishing the Dexos specification or that GM is profiting from the license costs.

List of Dexos oils

Brand NameSupplierSpecificationsViscocity
ACDelco EngOil FullSyn, SNGeneral Motors  Dexos1 Gen 25W-30
ACDelco Oleo Sintetico para Motor API SNGeneral MotorsDexos1 Gen 20W-30
AccelHighline WarrenDexos1 Gen 20W-20
Accurate Full SyntheticVesco Oil CorporationDexos1 Gen 20W-20
Allied OilAllied Oil and Tire Co.Dexos1 Gen 25W-30

What Is So Wrong with Regular Old Oil?


Oil quality has only improved as a result of technological advancements and vehicle advancements.

Natural automotive lubricants have been used in automobiles for many years and are found naturally in the environment.

Because oil is a naturally occurring substance, there is minimal control over the presence of undesired substances or contaminants in it.

While these impurities work as a natural lubricant, they also operate as a cause of buildup in your vehicle’s engine over time.

Natural oil is less expensive than synthetic or Dexos oil, but it does not have the same operational life as synthetic or Dexos oil, necessitating more regular oil changes.

What Is the Difference Between Dexos and Synthetic Oil?

GM Powertrain engineers created the Dexos engine oil standard, which is tailored particularly for GM engines.

Lube specialists recommend synthetic oils for high-mileage automobiles and vehicles that operate in harsh environments (i.e., cold weather, hot weather, elevation changes).

What Is the Difference Between Dexos1 And Dexos2?

While both of these oils are worth a try in gasoline engines, the Dexos 1 should never be used in diesel engines.

Dexos 2, on the other hand, was designed specifically for such engines and performs admirably in all current gasoline and diesel engines.

Can I use it either?

No! Even though many of the characteristics are identical, dexos1 oils are developed for gasoline engines while dexos2 oils are meant for diesel engines.

Because of the inherent variations in functioning between gasoline and diesel engines, it is critical to use the correct oil.

How Often to Change the Engine Oil?

You’ve probably heard of the 4,500-kilometer (3,000-mile) oil change interval fallacy.

Despite today’s tremendous developments in oil chemistry and engine technology, oil replacement is still recommended every 4,500 kilometers (3,000 miles).

In reality, most carmakers recommend an interval of 11,000 or 15,000 kilometers in their service manuals (7,500 or 10,000 miles).

So, why is it that such a myth is still believed to be true?

Customers continue to rely on this old guideline since they are unaware of the advancements and improvements occurring in the automobile sector.

Instead, by sticking to the oil change intervals advised by most manufacturers, you’ll save not just time and money on maintenance, but you’ll also be helping to safeguard the environment.

Is Mobil 1 Better Than Castrol?

Mobil, on the other hand, continues to outperform Castrol Edge when it comes to performance preservation.

In other cases, Castrol’s magnetic additives make it the preferable choice for consumer-grade engines that operate on standard oil.

In general, Mobil outperforms Castrol in terms of retaining properties.

Final Words

On an ending note, I would like to suggest you stop looking for Dexos. It is a very specific oil and the balance of viscosity is very important.

But often you will not find a Dexos oil nearby. Because it usually derives lubricants from the engine. However, using proper Dexos oil is important, no matter what you hear conventionally.

I hope this article will help you with every query about the Dexos oil and what will happen if you don’t use it.

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