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What is Chevy brand oil?

There is no Chevrolet-branded motor oil that is unique to the Chevy brand. Chevrolet vehicles rely on motor oils that meet General Motors’ Dexos specifications, supplied by various brands through dealerships or independent retailers. In short, “Chevy brand oil” usually means Dexos-certified oil used in GM vehicles, not a standalone Chevrolet-made product.


Understanding the Chevy oil standard


Chevrolet, and General Motors, standardize engine oil with the Dexos specification to ensure consistent protection and performance across GM engines. Dexos1 Gen 2 covers most gasoline engines, while Dexos2 is used for diesel engines and some gasoline engines under certain configurations. Oils labeled Dexos1 Gen 2 or Dexos2 are produced by multiple manufacturers under GM licensing and are used in Chevrolet vehicles as required by the engine design.


What Dexos means for your Chevy


Dexos is GM’s official motor oil specification. Oils that carry the Dexos1 Gen 2 or Dexos2 logos have been tested for wear protection, deposit control, and compatibility with GM engines. Using a Dexos-certified oil helps ensure performance, protection, and warranty compliance in GM-powered vehicles.


Here are the key steps to make sure you're using the right oil for a Chevy:



  • Check the owner's manual for the exact specification (Dexos1 Gen 2 for most gasoline engines, Dexos2 for diesels or specific engines) and the recommended viscosity (for example 0W-20 or 5W-30).

  • Look for a Dexos certification on the oil container. The label should indicate Dexos1 Gen 2 or Dexos2, depending on the engine.

  • Choose a reputable brand that is licensed to produce Dexos oils. Many major brands offer Dexos-certified motor oils.

  • If your vehicle has a long-life or extended oil-change interval, follow GM's service schedule and use the specified oil to maintain warranty coverage.

  • When in doubt, ask your Chevrolet dealer or a qualified technician to confirm the correct oil for your model and climate.


In practice, there is no distinct "Chevy-branded" oil separate from these Dexos-labeled products. The Chevrolet name may appear on service promotions or dealer-branded packaging, but the oil itself is produced by third-party brands under GM’s Dexos licensing.


Genuine GM oil at dealerships


Chevrolet service centers often market "Genuine GM Motor Oil" or "Genuine GM Dexos" oils as part of factory-authorized service. These products are Dexos-certified and can be manufactured by partner brands under GM licensing, ensuring compatibility with GM engines and warranty terms.


For consumers shopping outside a dealership, you can still buy Dexos1 Gen 2 or Dexos2 oils from auto parts stores and retailers. The important factor is meeting the correct Dexos specification and viscosity for your vehicle.


Where to buy Dexos oil and how to ensure you choose the right product


Before selecting a bottle, verify the exact needs of your engine and then source a Dexos-certified oil from a reputable retailer. The following guidelines help ensure you pick the right product:



  • Review your owner's manual or GM's official support page to confirm whether your engine requires Dexos1 Gen 2 or Dexos2, and the recommended viscosity (0W-20, 5W-30, etc.).

  • Locate a bottle that clearly states Dexos1 Gen 2 or Dexos2 on the label, indicating GM certification.

  • Prefer oils from well-known brands that participate in the Dexos licensing program; these are widely available at auto stores and service centers.

  • Ensure the product is suitable for your climate and driving conditions (city/highway use, towing, extreme temperatures).


Following these steps helps ensure you meet GM’s engine oil requirements and maintain warranty coverage.


Summary


There is no separate "Chevy brand oil" produced by Chevrolet. The correct approach is to use motor oil that meets GM's Dexos specifications (Dexos1 Gen 2 for most gasoline engines, Dexos2 for diesels and some gas engines) in the grade specified by your owner’s manual. Chevrolet-branded oil, when offered, is typically Dexos-certified oil produced by partner brands and sold or installed through GM dealerships. Always verify the exact specification and viscosity for your model and climate, and consult a dealer if you are unsure.

What oil does Chevy use at the dealership?


Chevy dealerships typically use oils that meet the manufacturer's dexos specifications, with ACDelco dexos1™ Full Synthetic and Mobil 1™ Advanced Full Synthetic being common choices. The specific oil and viscosity grade—such as 0W-20 or 5W-30—will vary depending on the particular vehicle's engine, so it is best to check your owner's manual for the precise requirement. 
Common oil options

  • ACDelco dexos1™ Full Synthetic: Meets GM's stringent requirements for performance and protection. 
  • Mobil 1™ Advanced Full Synthetic: An official partner with GM, this is often used, especially as a factory fill for performance vehicles like the Corvette. 
  • ACDelco Gold Conventional Oil: A conventional option, but many modern Chevy engines require synthetic oil. 

How to choose the right oil
  • Check your owner's manual: This is the most reliable source for your specific vehicle's needs. 
  • Look for the dexos approval: Ensure the oil you or your dealership uses has the official "dexos" certification for your vehicle's engine. 
  • Consider your driving conditions: For most modern vehicles, full synthetic is the recommended choice for superior performance, especially in extreme temperatures. 



Why does Chevy recommend Dexos oil?


Using Dexos oil is important, especially if you drive a GM vehicle such as a Chevrolet, Buick, GMC, or Cadillac. It guarantees that the oil protects your engine to the manufacturer's exact standards, preserving warranty coverage and enhancing vehicle longevity.



Is Mobil 1 the same as Dexos?


Yes, many Mobil 1 products are dexos-approved, but not all of them are. You need to check the product label for the official dexos icon to be sure, as some Mobil 1 oils are formulated for specific dexos specifications (like dexos1, dexos2, or dexos R) while others meet different, non-dexos standards. 
Specifics on Mobil 1 and dexos

  • For GM vehicles: GM requires the use of dexos-licensed oil for many modern vehicles to maintain warranty. Mobil and other brands offer a variety of Mobil 1 products that meet these requirements. 
  • For Corvettes: Some Chevrolet Corvettes, like the C8, specifically require Mobil 1 ESP Formula 0W-40, which is approved for dexos2. 
  • For other high-performance applications: Mobil 1 also offers oils like the Supercar Full Synthetic, which meets dexos R specifications and is designed for GM high-performance gasoline engines, notes Walmart. 
  • General rule: Always look for the official dexos icon and license number on the front and back of the oil bottle to ensure you are getting a licensed dexos product, says The Petroleum Quality Institute of America. 



What brand of oil does Chevy use?


Chevrolet recommends using its own ACDelco brand, specifically oils meeting the dexos1™ (for gasoline) or dexosD (for diesel) standards, as they are formulated to meet GM's specific requirements. However, other licensed brands like Mobil 1 are also mentioned as approved and recommended for performance engines. The exact type and viscosity will depend on your specific engine, so always consult your owner's manual for the correct oil specifications.
 
Recommended oil brands

  • ACDelco: This is the brand manufactured by General Motors and is recommended for most Chevrolet vehicles, with options like ACDelco dexos1™ full synthetic or ACDelco Gold conventional oil. 
  • Mobil 1: Approved by Chevrolet for use in its vehicles, particularly Mobil 1™ Advanced Full Synthetic for general use or their Racing™ oils for performance engines. 
  • Other licensed brands: As long as the oil meets the specific dexos® standard for your vehicle, other brands will also be compatible. 

How to choose the right oil
  1. Check your owner's manual: This is the most important step, as it will specify the exact viscosity grade (e.g., SAE 0W-20 or 5W-30) and the required performance standard for your specific engine. 
  2. Ensure it's licensed: The oil must be licensed to meet the dexos specification to ensure it meets GM's quality and performance standards. 
  3. Match the oil to your engine: 
    • Most modern gasoline engines will use dexos1™ in a specific viscosity (e.g., 0W-20). 
    • Diesel engines require dexosD, which is formulated specifically for them. 


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.