
BG 245 Premium Diesel Fuel System Cleaner is a top-quality automotive maintenance product that removes and dissolves deposits from the entire diesel injection system, including fuel injectors and combustion chambers. It is designed to address the issue of diesel fuel instability, which can lead to increased deposit buildup, heavy exhaust emissions, and power loss. The BG 245 cleaner is particularly effective in removing heavy deposits inside the injectors of high-temperature HPCR fuel delivery systems, preventing potential engine damage. Customers have reported excellent results, with improved engine smoothness, increased fuel efficiency, and enhanced throttle response. It is recommended to add BG 245 to a full tank of diesel fuel and use it for short trips to allow for optimal treatment and performance.
| Characteristics | Values |
|---|---|
| Use | Add to vehicle fuel tank at fill-up |
| Removes deposits from | Entire diesel injection system, including fuel injectors and combustion chambers |
| Effective on | High-temperature HPCR fuel delivery systems |
| Removes | Carbon gunk |
| Improves | Engine smoothness, throttle response, fuel efficiency |
| Contains | Fuel lubricity agent, cetane improver for cold starts |
| Dosage | 6 oz. (177 mL) for 6–10 gallons (23–38 Liters) of diesel fuel |
| Dosage | 11 oz. (325 mL) for 20 gallons (75 Liters) of diesel fuel |
| Dosage | 32 oz. (946 mL) for 20–40 gallons (75–150 Liters) of diesel fuel |
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What You'll Learn
- How much to use: 6 oz treats 6-10 gallons of diesel fuel?
- How to add: Pour into the vehicle's fuel tank at fill-up?
- When to use: Twice a year or when you notice dirty injector tips?
- What it does: Removes deposits from the entire diesel injection system?
- Results: Customers report improved engine performance and increased fuel efficiency

How much to use: 6 oz treats 6-10 gallons of diesel fuel
BG 245 Premium Diesel Fuel System Cleaner is a treatment designed to remove and dissolve deposits from the entire diesel injection system, including fuel injectors and combustion chambers. It is especially effective in removing heavy deposits inside the injectors of high-temperature HPCR fuel delivery systems.
The amount of BG 245 Premium Diesel Fuel System Cleaner to be used depends on the volume of diesel fuel being treated. According to the manufacturer's instructions, for every 6 to 10 gallons (23 to 38 litres) of diesel fuel, 6 oz (177 mL) of the cleaner should be added. This ratio ensures that the treatment is effective and provides optimal results.
It is important to note that the BG 245 treatment works best when added to a full tank of diesel fuel. This allows for a more comprehensive treatment as the cleaner can reach all areas of the fuel system, including those that are carboned up. Additionally, using the treatment on a full tank and then utilising that tank for shorter trips further enhances its effectiveness, as it allows the treatment to soak into the affected areas.
Customers who have used BG 245 have reported excellent results, particularly with high-mileage Cummins engines. They have noted improvements in engine smoothness, throttle response, and fuel efficiency. Some have also observed a reduction in white smoke, indicating cleaner injector tips.
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How to add: Pour into the vehicle's fuel tank at fill-up
To add the BG 245 Premium Diesel Fuel System Cleaner to your vehicle's fuel tank, follow these steps:
Firstly, determine the amount of BG 245 cleaner required based on the volume of diesel fuel in your tank. The BG 245 cleaner should be added in specific ratios for optimal results. The product instructions specify the following ratios: for 6-10 gallons (23-38 litres) of diesel fuel, use 6 oz. (177 mL) of the cleaner; for up to 20 gallons (75 litres), use 11 oz. (325 mL); and for 20-40 gallons (75-150 litres), use 32 oz. (946 mL). These ratios ensure that the cleaner is effectively distributed throughout the fuel system.
Next, locate your vehicle's fuel tank and remove the fuel cap. The fuel tank is typically located on the rear or side of the vehicle, and you will need to safely access it to pour in the cleaner. Once you have removed the fuel cap, you can proceed to the next step.
Now, carefully pour the recommended amount of BG 245 Premium Diesel Fuel System Cleaner into the fuel tank. Ensure that you are in a well-ventilated area and avoid any spillage. It is advisable to wear protective gear, such as gloves and eye protection, to prevent any contact with the cleaner. After adding the cleaner, securely replace the fuel cap on your vehicle's fuel tank.
Finally, to achieve the best results, it is recommended to use the treated tank for short trips. This allows the cleaner to effectively soak and remove carbon buildup in the areas that are usually carboned up. Running the engine through a full cycle with the treated fuel will enable the BG 245 cleaner to dissolve and remove deposits from the entire fuel injection system, including the fuel injectors and combustion chambers.
By following these steps and using BG 245 Premium Diesel Fuel System Cleaner, you can effectively clean and maintain your diesel engine, improving its performance, fuel efficiency, and longevity.
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When to use: Twice a year or when you notice dirty injector tips
BG 245 Premium Diesel Fuel System Cleaner is a product designed to remove and dissolve deposits from the entire diesel injection system, including fuel injectors and combustion chambers. It is recommended for use twice a year or when you notice signs of dirty injector tips, such as white smoke.
Diesel fuel is known for its instability, which can lead to deposit buildup, increased exhaust emissions, and power loss. In newer high-pressure common rail (HPCR) direct injection engines, the high temperatures and pressures can accelerate the breakdown of diesel fuel into carbon deposits, resulting in poor performance and potential engine damage.
By using BG 245, you can effectively clean the entire diesel injection system, improving engine performance and restoring optimum fuel efficiency. It is recommended to add BG 245 to your vehicle's fuel tank at fill-up, using the specified amounts based on the amount of diesel fuel you have.
For example, use 6 ounces (177 milliliters) of BG 245 to treat up to 6-10 gallons (23-38 liters) of diesel fuel. Using the product twice a year or at the first sign of dirty injector tips can help maintain the health of your diesel engine and prevent potential issues caused by deposit buildup.
It is important to follow the recommended dosage and usage instructions for the best results. BG 245 is a trusted product that has received positive reviews from customers, who have noted its effectiveness in improving engine performance, fuel efficiency, and smoothness. By using BG 245 as part of your regular maintenance routine, you can help ensure the long-term health and performance of your diesel engine.
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What it does: Removes deposits from the entire diesel injection system
BG 245 Premium Diesel Fuel System Cleaner is a highly effective product for removing deposits from the entire diesel injection system. It is designed to address the issues caused by the instability of diesel fuel, which can lead to deposit buildup and subsequent power loss and increased emissions.
The BG 245 cleaner is formulated to remove and dissolve deposits not just from the injector tips but from the entire diesel injection system, including inside the fuel injectors and combustion chambers. This sets it apart from other fuel system cleaners, which often fail to reach inside the injectors.
BG 245 is especially beneficial for high-pressure common-rail (HPCR) direct injection engines, where high temperatures and pressures can accelerate the breakdown of diesel fuel into carbon deposits. By removing these deposits, BG 245 helps prevent poor performance and potential engine damage.
The product is also effective in removing heavy deposits inside the injectors of high-temperature HPCR fuel delivery systems. In addition, BG 245 contains a fuel lubricity agent and cetane improver, which aid in cold starts.
Users have reported excellent results with BG 245, noting its ability to remove carbon buildup and improve engine performance and smoothness. It is regarded as one of the best fuel system cleaners available, delivering top results even for high-mileage engines.
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$44.95

Results: Customers report improved engine performance and increased fuel efficiency
Customers have reported excellent results with the BG 245 Premium Diesel Fuel System Cleaner, especially when used with diesel engines. The product is designed to clean the entire diesel injection system, including the fuel injectors and combustion chambers, and it is especially effective in removing heavy deposits from inside the injectors of high-temperature, high-pressure common rail (HPCR) engines.
One customer review highlights the product's effectiveness in improving engine performance and increasing fuel efficiency: "There was an almost immediate difference in how the engine smoothed out, and engine noise became quieter... improved by 3 mpg and the engine has a greater response with a smoother idle." Another customer reports similar improvements, stating, "12% increase in MPG and idle has smoothed out significantly! I thought I had a bad motor mount, maybe not!".
In addition to improved engine smoothness and fuel efficiency, customers have also noticed improved throttle response and power. One customer observed, "Also noticed increased power. Getting an emission test soon, I'll see if HP has increased." The product is also said to be effective in removing carbon buildup, with one user commenting, "The BG245 probably removed the carbon gunk that I saw on the injector I removed."
Overall, the BG 245 Premium Diesel Fuel System Cleaner is well-regarded by customers who have used it, with reports of improved engine performance and increased fuel efficiency, making it a popular choice for maintaining diesel engines.
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Frequently asked questions
The amount of BG 245 Premium Diesel Fuel System Cleaner you should use depends on the amount of diesel fuel in your tank. The manufacturer recommends the following:
- Use 6 oz. (177 mL) to treat up to 6–10 gallons (23–38 Liters) of diesel fuel.
- Use 11 oz. (325 mL) to treat up to 20 gallons (75 Liters) of diesel fuel.
- Use 32 oz. (946 mL) to treat 20–40 gallons (75–150 Liters) of diesel fuel.
BG 245 Premium Diesel Fuel System Cleaner removes and dissolves deposits from the entire diesel injection system, including fuel injectors and combustion chambers. It is especially effective in removing heavy deposits inside the injectors of high-temperature HPCR fuel delivery systems.
Customers have reported a range of benefits, including improved engine smoothness, increased fuel efficiency, better throttle response, and effective removal of carbon deposits from injectors. BG 245 also contains a fuel lubricity agent and cetane improver for cold starts, and helps prevent black fuel filter plugging in HPCR systems.











































