What Fuel Treatment Does GM Tecommend?

General Motors (GM) recommends using specific fuel treatment products to maintain and improve the performance of their vehicles.

For diesel engines, GM suggests using ACDelco Diesel Fuel Conditioner, ACDelco Diesel Fuel System Treatment Plus, Cold Flow Additive, and Fuel Maintenance products. These are designed to clean and prevent injector deposits, improve lubricity, and address issues related to fuel waxing or icing in cold weather conditions. It’s important to note that GM discourages the use of fuel additives that contain metal-based additives, alcohol, or other water emulsifiers as they may compromise the water-removal effectiveness of the fuel filtering system.

For gasoline engines, GM endorses the use of ACDelco Fuel System Treatment Plus. This product is formulated to clean fuel injectors, intake valves, and combustion chambers, helping to maintain the engine’s performance and fuel efficiency.

Additionally, GM recommends using Top Tier gasoline for their vehicles. Top Tier gasoline is recognized for having effective additives in high concentrations, which help to keep the fuel system clean and enhance engine performance.

It’s worth noting that while these are the recommended products and practices by GM, vehicle owners often have varied experiences and preferences regarding fuel additives. Some vehicle owners may find certain products more effective based on their specific vehicle model and driving conditions.

For more detailed information on GM’s recommendations for fuel treatments, you can visit the GM Service Insights website and other resources provided by GM.

Read related article: Best Diesel Fuel Additive for Duramax (7 Suitable Brands)

Why GM Recommends These Treatments

GM recommends specific fuel treatments for their vehicles for several reasons, all aimed at maintaining the health and performance of the engine:

  1. Cleaning and Preventing Deposits: Fuel treatments like ACDelco Diesel Fuel Conditioner and Fuel System Treatment Plus are formulated to clean and prevent deposits in fuel injectors, intake valves, and combustion chambers. Deposits can significantly impair engine performance and fuel efficiency. By keeping these components clean, the engine runs more smoothly and efficiently.
  2. Enhancing Lubricity: For diesel engines, improving lubricity is crucial. Products like ACDelco Diesel Fuel Conditioner help protect fuel pump and injection system from wear. Enhanced lubricity means reduced friction and wear on engine components, prolonging their life and maintaining performance.
  3. Cold Weather Performance: In cold weather, diesel fuel can wax or gel, leading to fuel flow problems. GM’s Cold Flow Additive addresses this issue, ensuring better cold flow operability. This is particularly important for vehicles operated in colder climates, preventing cold-start issues and maintaining reliability.
  4. Longevity and Durability: Regular use of these treatments can help extend the life of the engine. By maintaining clean fuel systems and preventing wear, these treatments reduce the likelihood of costly repairs and extend the vehicle’s lifespan.
  5. Fuel Efficiency: Clean fuel injectors and combustion chambers contribute to more efficient fuel combustion. This efficiency translates to better mileage and performance, ultimately saving costs on fuel.
  6. Emission Reduction: Cleaner engines typically emit fewer pollutants. By using these fuel treatments, GM vehicles can maintain lower emission levels, contributing to environmental protection.
  7. Compatibility with Engine Design: GM designs its engines with certain operational characteristics in mind. The recommended fuel treatments are chosen because they complement these design aspects, ensuring that the engines operate as intended.
  8. Overall Performance: Using the recommended fuel treatments helps maintain the engine’s optimal performance. This means smoother acceleration, consistent power output, and reliable operation under various driving conditions.

GM’s emphasis on using these specific fuel treatments is part of a broader strategy to ensure that their vehicles perform optimally throughout their lifespan. These treatments are tailored to the unique requirements of GM engines, both diesel and gasoline, and are part of the company’s commitment to vehicle reliability and customer satisfaction. Vehicle owners are encouraged to follow these recommendations to get the best performance and longevity from their GM vehicles.

Where to Find GM-Recommended Products

If you’re looking to buy GM-recommended fuel treatment products like ACDelco additives, there are several easy options. First, you can visit a GM dealership. They usually have a parts department where you’ll find all the GM-approved products you need. Dealerships are a great choice because they have knowledgeable staff who can help you pick the right product for your vehicle.

Another option is to head to your local automotive stores. Many of these stores carry a range of car care products, including those recommended by GM. Just look for ACDelco products or ask a store assistant for help.

You can also shop online, which is super convenient. GM has official online platforms where you can buy their products. Websites like ACDelco’s official site, GM’s own parts website, and even online marketplaces like Amazon, often have a variety of GM-recommended fuel treatment products. Shopping online lets you easily compare prices and read reviews from other customers, which can be really helpful.

So, whether you prefer the personal touch of a dealership, the variety of an automotive store, or the convenience of online shopping, you have plenty of options for finding the right GM-recommended fuel treatment for your car.

Frequency and Timing of Treatment

GM’s recommendations on the frequency and timing of using their fuel treatments can vary depending on the specific product and the type of vehicle. However, here’s a general guideline to give you an idea:

  1. Frequency of Use: For regular maintenance, GM often suggests using fuel treatments at every oil change or as specified in the vehicle’s owner’s manual. This frequency ensures that the fuel system remains clean and efficient over time. For some products, especially those designed for specific issues like winterizing or cleaning heavy deposits, the frequency might differ. It’s always a good idea to check the product instructions or consult with a GM dealer.
  2. Timing for Application: The best time to apply these treatments is typically when you’re filling up your gas tank. This allows the treatment to mix thoroughly with the fuel and circulate through the system. For diesel engines, especially in cold climates, adding a winter treatment before the temperature drops significantly can be crucial to prevent fuel gelling.
  3. Seasonal Considerations: Some fuel treatments are designed for specific seasonal use. For example, cold-weather additives for diesel vehicles are best used in fall before the winter season starts. Similarly, treatments for cleaning might be more beneficial after winter to clear out any build-up that occurred during colder months.
  4. Preventative vs Reactive Use: Generally, using fuel treatments as a preventative measure is recommended. This means regularly adding them to maintain a clean and efficient system, rather than waiting for problems like poor performance or reduced fuel efficiency to arise.

Remember, these are general guidelines and it’s always best to refer to your specific vehicle’s manual or consult with a GM dealer for tailored advice. Keeping up with regular maintenance, including the use of fuel treatments, can significantly help in maintaining your vehicle’s performance and longevity.

Benefits of Following GM’s Recommendations

Using GM’s recommended fuel treatments for your vehicle can be really beneficial. Think of these treatments like vitamins for your car’s engine. They help keep everything running smoothly and cleanly. When you use these treatments, they work to clean out all the gunk that builds up over time in your engine from regular use. This is important because that build-up can make your engine work harder than it needs to, kind of like how you’d feel sluggish if you ate junk food all the time.

By keeping your engine clean, these treatments help it run more efficiently. That means you can get better gas mileage, so you’ll spend less money on fuel in the long run. It’s like getting more miles out of every gallon of gas. Also, when your engine is clean and running efficiently, it tends to last longer. You won’t have to worry about expensive repairs or parts wearing out as quickly, which is a big plus.

Another benefit is that a well-maintained engine is better for the environment. It produces fewer harmful emissions, which is like cutting down on the pollution your car adds to the air.

So, in a nutshell, using GM’s recommended fuel treatments can save you money, extend the life of your car, and help take care of the environment. It’s a simple step that can make a big difference for your vehicle’s health and performance.

GM’s Stance on Alternative or Generic Treatments

GM’s position on using non-endorsed or generic fuel treatments is quite specific and cautious. They generally recommend using their own products, like ACDelco additives, as these are tested and proven to work effectively with GM vehicles. The main reasons for this stance include:

  1. Compatibility with GM Engines: GM designs its vehicles with certain specifications and requirements. Their recommended products are specifically formulated to meet these requirements, ensuring optimal performance and avoiding any potential issues that might arise from using non-GM products.
  2. Quality and Effectiveness: GM’s recommended products, such as ACDelco additives, undergo rigorous testing to ensure they perform as intended. This level of assurance may not be guaranteed with generic or non-endorsed products.
  3. Avoiding Potential Damage: Using non-endorsed products might lead to issues that could affect the performance or even damage the vehicle’s engine. This is particularly a concern with products that contain ingredients not suitable for GM engines, like certain metal-based additives, alcohol, or water emulsifiers.
  4. Warranty Considerations: In some cases, using non-recommended products can affect the vehicle’s warranty. If a problem arises due to the use of a non-endorsed product, it might not be covered under the warranty.

GM’s advice is typically to follow their guidelines and use the products they recommend. This ensures that the vehicle runs as efficiently and reliably as possible. If a vehicle owner is considering a non-GM treatment, it would be wise to consult with a GM dealer or a qualified mechanic to ensure it won’t cause any issues with their specific model.


GM recommends using specific fuel treatments to keep your car running smoothly and efficiently. Products like ACDelco additives are designed to clean your engine and fuel system, making sure everything works like it should. By regularly using these treatments, you can help your car run better, use fuel more efficiently, and even last longer. It’s a simple step you can take to take good care of your car and avoid bigger problems down the road. Just like how eating healthy keeps you fit, using the right fuel treatment keeps your car in top shape.

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