Mercedes Mullins
While algae cannot grow inside a diesel fuel tank due to the absence of sunlight, microbial growth, often referred to as diesel algae, is a common issue. This sludge-like substance is caused by bacteria, mould, and fungi that feed on hydrocarbons in the diesel fuel and water present in the tank. To prevent and address this problem, various additives are available, including biocides and fuel additives. Biocides, such as Bio Kleen, are designed to kill microbes directly, while fuel additives help prevent phase separation and create unfavourable conditions for microbial growth. Testing for microbial growth and taking proactive measures to maintain fuel system cleanliness are also important steps in managing diesel algae.
| Characteristics | Values |
|---|---|
| Additive type | Biocide |
| How it works | Kills microbes (bacteria, mould, fungus) |
| Effectiveness | Requires physical contact with microbes to work |
| Use cases | Diesel fuel, water, fuel oil, gasoline, kerosene |
| Application method | Injection into the fuel line, slug dosage, intermittent metering |
| Amount to use | Enough to treat the maximum amount of fuel in the tank |
| Testing | ATP testing is recommended at least once a year |
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$35.05
What You'll Learn
Biocides are an effective additive to kill microbes
While algae cannot grow inside a diesel fuel tank due to the absence of sunlight, microbes such as mould, bacteria, and fungi can thrive in such environments. These microbes cause significant issues, including engine damage and corrosion. Thus, it is imperative to prevent their growth and proliferation.
Biocides are a type of additive that can effectively kill microbes in diesel fuel. They are designed to target and eliminate bacteria and fungi, which are the primary components of microbial contamination in diesel fuel. By using biocides, you can address the root cause of the problem and prevent further damage to your fuel system.
One such biocide is Bio Kleen Diesel Fuel Biocide Treatment, which is specifically formulated to control microbial growth in diesel fuel. It is effective in both diesel fuel and water, making it a versatile solution. By adding Bio Kleen to your storage or fuel tanks, you can maintain a concentration of 135-1,000 ppm, which is sufficient to inhibit microbial growth.
However, it is important to note that biocides should not be the only measure taken to address microbial contamination. While they are effective in killing microbes, they do not address the underlying conditions that promote microbial growth. Therefore, a comprehensive approach should be adopted, including proper fuel tank maintenance, regular testing, and the use of high-quality diesel fuel.
Additionally, when using biocides, it is crucial to follow the recommended dosage and application methods. Overusing additives can create more problems, so it is essential to strike a balance. Furthermore, some biocides contain hazardous chemicals, and frequent use may lead to the development of resistant microbe strains. As such, biocides should be used judiciously and in conjunction with other preventative measures to ensure their effectiveness and mitigate potential health and environmental risks.
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Additives that remove water from fuel
Although it is commonly called "diesel algae", the growth found in diesel fuel tanks is not actually algae as algae require sunlight to grow, which is not present inside a diesel engine. The growth found in diesel fuel tanks is more accurately referred to as "microbial growth", which includes species of bacteria, moulds, fungi, and other microbes. These microbes feed on the hydrocarbons in diesel fuel and produce waste products that can cause corrosion and engine fouling. They can also create a slimy film that coats fuel tanks and lines, reducing fuel flow and causing equipment malfunction.
To prevent and treat microbial growth in diesel fuel, it is important to eliminate one of the three components that make up the environment in which microbes thrive: air, water, and temperature. Water is necessary for the microbes to survive, so removing water from the fuel is a crucial step in preventing and treating microbial growth.
There are several fuel additives available that can help remove water from diesel fuel. One such additive is the Diesel Fuel Supplement (DFS), which includes a demulsifier that causes the water and fuel to separate. The separated water is then caught by the DFCM (a device in the fuel system) before it enters the engine, preventing water from entering the engine and causing damage. Another option is the Diesel 911 Winter Fuel Treatment, which has been recommended by several users to dry up small amounts of water in fuel tanks. This additive is designed to absorb water back into the fuel, preventing it from freezing and causing injector damage, which is especially important in colder climates. It is important to note that using too many additives can create more problems, so it is recommended to start with a simple solution like pumping out the water and cleaning the tank before resorting to additives. Additionally, testing the fuel against various additives is crucial as demulsifiers are fuel-specific and may not work on all fuels.
In addition to using additives, it is important to take proactive measures to keep the fuel system clean, use high-quality diesel fuel, and frequently drain water from the water separator to prevent and treat microbial growth in diesel fuel. Regular maintenance and testing of stored fuels are essential to ensure the health of diesel fuel tanks and prevent the costly issues associated with microbial growth.
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Testing for microbial growth
While often referred to as "diesel algae", the growth occurring in diesel fuel is not actually algae, as algae require sunlight to grow, which is not present in diesel fuel tanks. Instead, it is microbial growth, a combination of species of bacteria, moulds, fungi, and other microbes.
Immunoassay antibody tests, such as FUELSTAT®, are another option for testing diesel fuel. These tests are quick and easy to use, providing results within minutes, and can be conducted on-site. However, they only detect specific microbes that threaten fuel, and may not capture the full range of microbial contamination.
To prevent false positives and false negatives, it is important to select the appropriate test for your needs and to interpret the results correctly. Regular testing is crucial to catch microbial growth early and prevent significant damage to the fuel system and tank.
In addition to testing, proactive measures should be taken to keep the fuel system clean and prevent microbial growth. This includes using high-quality diesel fuel and fuel additives that can remove water from the fuel, as water is one of the key components necessary for microbial growth.
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Using high-quality diesel fuel
While algae cannot grow inside a diesel fuel tank due to the absence of sunlight, microbial growth, often referred to as "diesel algae," can occur. This growth is caused by microbes such as bacteria, mould, and fungus, which enter the tank through water and feed on hydrocarbons in the diesel fuel. To prevent and address this issue, it is recommended to use high-quality diesel fuel and fuel additives.
Reduced Contaminants and Impurities
High-quality diesel fuel is less likely to contain contaminants and impurities. These impurities can provide a food source for microbes, contributing to their growth and proliferation. By using cleaner fuel, you reduce the available nutrients for microbial growth.
Improved Engine Performance
High-quality diesel fuel helps ensure optimal engine performance. Contaminants and water in low-quality fuel can lead to the formation of sludge and corrosion, causing engine damage and reduced fuel efficiency. By using high-quality fuel, you minimize the risk of these issues and maintain the performance and longevity of your engine.
Fuel Stability
High-quality diesel fuel is more stable and resistant to degradation over time. This stability helps prevent the creation of an environment conducive to microbial growth. It also reduces the likelihood of fuel breakdown, which can release additional nutrients for microbes.
Cost-Effectiveness
Extended Fuel Storage
High-quality diesel fuel is better suited for long-term storage. Its stability and resistance to contamination help maintain fuel integrity, even when stored for extended periods. This is especially important for backup fuel supplies or equipment that may not be used frequently.
Supplier Reputation and Reliability
When purchasing high-quality diesel fuel, it is essential to consider the reputation and reliability of your fuel supplier. Reputable suppliers prioritize fuel quality and often have stringent quality control measures in place. They can provide guidance on fuel maintenance and offer advice on preventing and addressing microbial growth.
In summary, using high-quality diesel fuel is a critical aspect of diesel engine maintenance. It helps prevent microbial growth by reducing available nutrients for microbes and maintaining fuel stability. Additionally, high-quality fuel improves engine performance, saves costs, and ensures reliable fuel storage. By choosing reputable suppliers and prioritizing fuel quality, you can effectively mitigate the risks associated with microbial contamination in diesel fuel.
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Automated fuel maintenance systems
While algae cannot grow inside a diesel fuel tank due to the absence of sunlight, microbial growth, often referred to as "diesel algae", can occur. This microbial growth includes bacteria, mould, and fungi, which can cause significant issues for diesel engines.
One example of an automated fuel maintenance system is the Algae-X product line offered by AXI International. Algae-X is designed for marine fuel polishing, filtration, and maintenance. Users of Algae-X have reported improved engine performance, reduced smoke emissions, and prolonged injector nozzle life.
Fueltec also offers automated fuel polishing and tank cleaning systems. Their PCB systems are "set-it-and-forget-it" options suitable for single-tank applications. Meanwhile, their PLC systems can manage multiple storage tanks with a single system, allowing users to set the date, time, tank selection, and system run duration for each tank.
In addition to automated fuel maintenance systems, other methods to prevent and address microbial growth in diesel fuel include the use of biocides, fuel additives, and regular testing. It is important to note that preventing microbial growth is more cost-effective and less challenging than addressing an existing contamination issue.
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Frequently asked questions
Diesel algae, or microbial growth, is a common issue in diesel fuel tanks. It is caused by bacteria, mould, and fungi that feed on hydrocarbons in the diesel fuel and water present in the tank.
To prevent diesel algae, you should keep your fuel tank clean and use high-quality diesel fuel and fuel additives. Removing water from the fuel and regularly draining water from the water separator can also help.
The first signs of microbial contamination are mucous-like accumulations on fuel filters and an increased need to replace them.
You can use fuel biocides, such as Bio Kleen Diesel Fuel Biocide Treatment, to kill microbes in diesel fuel. However, biocides should be used with caution as they can create resistant microbes over time.
Yes, there are alternative solutions to biocides. For Tier-4 engines, automated fuel maintenance systems are recommended to prevent microbial growth. These systems regularly pull fuel from the tank to filter out contaminants. Additionally, maintaining the health of your diesel fuel tank and using high-quality diesel fuel can also help prevent diesel algae.
