Rajan Wilcox
Diesel fuel can be stored for long periods, but several factors can affect its longevity. The ideal conditions for storing diesel fuel include keeping it dry and cool, typically below 70 degrees Fahrenheit. Under these circumstances, diesel fuel can be stored for between six to eighteen months. To extend its life beyond a year, fuel stabilizers and biocides are required, and it must be monitored for any water buildup. Additionally, it's important to choose a well-constructed storage tank or container that protects the diesel from outside elements, as fuel quality is critical for engine performance.
| Characteristics | Values |
|---|---|
| Fuel type | Conventional diesel fuel is best for long-term storage. Biodiesel and biodiesel blends have a shorter shelf life and are more sensitive to temperature and oxygen exposure. |
| Storage container | Use a well-constructed tank or fuel container that keeps the fuel dry. |
| Sunlight | Store away from direct sunlight to reduce accelerated fuel degradation. |
| Fuel level | Keep the tank full to reduce condensation. |
| Fuel inspection | Regularly inspect the fuel system during long-term storage and fix any issues. |
| Fuel additives | Use additives like Biobor Fuel Additives to preserve fuel and improve performance. |
| Fuel stabilizers | Use fuel stabilizers to extend the storage life beyond 12 months. |
| Fuel temperature | Keep the fuel at a cool temperature, ideally below 70 degrees Fahrenheit. |
| Water buildup | Monitor for water buildup and carefully filter out any water to prevent engine damage. |
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What You'll Learn
Keep fuel dry and cool
Keeping diesel fuel dry is critical to its longevity. Water in diesel fuel can cause significant issues for engines, especially newer ones. Water can enter the fuel through condensation, which occurs when there is too much space in the tank or the fuel level is too low. This is why it is important to keep your tank full during long-term storage and to minimise the amount of space in the tank. Additionally, diesel sitting in a tank will accumulate sediment over time, which can include water, and this will need to be filtered out before use.
Another way that water can enter diesel fuel is through leaks. To avoid this, it is important to invest in a well-constructed tank or fuel container. A good storage tank will be the first line of defence against fuel aging and other quality issues associated with a poorly constructed system.
Keeping diesel fuel cool is also essential for long-term storage. The ideal temperature for storing diesel fuel is below 70 degrees Fahrenheit (21 degrees Celsius). At this temperature, diesel fuel can be stored for between six to twelve months. If the fuel cannot be kept at this temperature, twelve months is the longest it can reasonably be stored.
To extend the life of diesel fuel beyond twelve months, fuel stabilisers are required. One way to stabilise the fuel and improve its performance is to mix it with fresh diesel at a ratio of 50/50. Alternatively, you can add a product such as Diesel 911 Cetane Boost to improve the fuel's performance.
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Use a well-constructed tank
When storing diesel fuel for long-term use, it is imperative to use a well-constructed tank or fuel container to maintain fuel quality and protect it from damage and contamination. Well-built tanks are the first line of defence against accelerated fuel ageing and other fuel quality issues associated with a poorly constructed system.
A well-constructed tank should keep the fuel dry, preventing water accumulation and the growth of microorganisms. Over time, condensation can occur in the tank, and water can enter the fuel, which can cause issues for newer, high-tech engines. Additionally, microorganisms can contaminate the fuel, and their metabolic by-products can cause corrosion and sludge formation, affecting fuel quality and engine performance.
To prevent water accumulation, keep the tank full during long-term storage. This reduces the air space in the tank, minimising the amount of condensation that can occur. Regularly inspect your fuel system and maintain it properly. This includes filtering out any water or accumulated contaminants to ensure the fuel remains in good condition.
It is also essential to choose a tank that can maintain optimal fuel storage temperatures. Diesel fuel should be stored in a cool, dry place, away from direct sunlight, to prevent accelerated fuel degradation. Keeping the fuel at a consistent temperature below 70°F (21°C) will ensure a storage life of 6 to 12 months. To extend the fuel life beyond 12 months, the use of fuel stabilisers is necessary.
Finally, consider the size and type of tank that best suits your needs. If you plan to store a large volume of diesel fuel, invest in a well-built, sturdy tank that can accommodate the quantity safely. Ensure the tank meets regulatory requirements, especially if it is an above-ground or underground storage tank, as different measures may be necessary to prevent leaks and spills.
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Avoid direct sunlight
Diesel fuel should always be stored away from direct sunlight. Sunlight and heat exposure can cause the fuel to degrade more quickly. The more heat, the less stable your fuel becomes.
Keeping diesel fuel in a cool, dry place is essential to maintaining its quality over time. Ideally, the storage temperature should remain below 70 degrees Fahrenheit. This will help ensure the fuel remains stable and usable for between six to twelve months.
If you are storing diesel fuel in a tank, keeping the tank full will help to reduce condensation, which is a common problem when fuel levels are low. Condensation can lead to water buildup in the fuel, which can cause issues for newer, high-tech engines.
To further protect your diesel fuel from sunlight and heat exposure, consider storing the tank in a well-ventilated shed or outbuilding. If the tank must be kept outdoors, cover it with a tarp or other protective material to shield it from direct sunlight.
By taking these precautions, you can help ensure your diesel fuel remains stable and usable for longer periods.
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Use fuel stabilizers
Diesel fuel can be stored for between twelve and eighteen months under ideal conditions. However, to extend the life of diesel fuel beyond twelve months, even under the best conditions, it must be treated with fuel stabilizers. Fuel stabilizers are essential for preventing chemical instability and the effects of microbial activity in the fuel.
Microbial activity, for instance, can hinder diesel fuel feasibility as bacteria growth shortens the fuel's storage life. Biocides and diesel fuel stability treatments are proven methods to prevent the growth of diesel fuel bacteria by eliminating them. Biocides have become an essential part of fuel storage facilities due to the introduction of Ultra Low Sulfur Diesel (ULSD), which makes fuel more vulnerable to microbial activity.
Biofilms, or the biological mass produced by organisms in the diesel fuel storage tank, can affect how quickly and efficiently a biocide can eliminate or 'kill' a microbe. In some cases, a mechanical cleaning of the storage tank may be necessary to eradicate the presence of biofilms.
Additionally, fuel stabilizers can help to improve cetane, add lubricity, detergency, and disperse water. For example, Diesel 911 cetane boost can be added to "pep up" the diesel and eat away at any water that has accumulated.
It is important to note that the storage life of diesel fuel is dependent on the conditions under which it is kept. To ensure the longest possible storage life, keep the fuel cool (below 70 degrees Fahrenheit) and dry.
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Understand fuel type
Understanding your fuel type is critical to long-term diesel storage. Diesel fuel today often contains at least 5% biodiesel, but can be as much as 100% biodiesel (B100). Biodiesel and biodiesel blends have a shorter shelf life and are more sensitive to temperature and oxygen exposure than conventional diesel. They are also more prone to microbial contamination, which can be treated with biocides and diesel fuel stability treatments.
Conventional diesel fuel is therefore a better option for long-term storage. However, it is important to note that all diesel fuel is susceptible to degradation over time, especially when exposed to heat and sunlight. To extend the life of conventional diesel beyond twelve months, fuel stabilizers are required, and the fuel must be monitored for any water buildup.
Biodiesel blends, on the other hand, have a storage life of six to twelve months under ideal conditions, which include keeping the fuel dry and cool (below 70 degrees Fahrenheit). B100, or 100% biodiesel, has specific storage limitations that must be understood before opting for this fuel type for long-term storage.
Additionally, diesel fuel in storage tanks can accumulate water over time due to condensation, especially if the tank is not kept full. This water can cause issues in newer, high-tech engines, so it is important to carefully filter it out. Diesel in storage tanks can also accumulate sediment or "crud", which must also be filtered out before use.
Finally, certain additives in diesel fuel can degrade over time, causing problems for your engine. It is therefore important to inspect your fuel system regularly during long-term storage and address any issues that arise.
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Frequently asked questions
It is recommended to store diesel fuel at a temperature below 70 degrees Fahrenheit to ensure storage life between six to twelve months.
It is important to use a well-constructed tank or fuel container that keeps the fuel dry. A well-built system is the first line of defence against accelerated fuel ageing and other fuel quality issues.
The storage life of diesel fuel depends on the fuel type and storage conditions. Diesel fuel can be stored between twelve and eighteen months under ideal conditions. To extend the life past twelve months, fuel stabilisers and biocides must be used.
Diesel fuel should be stored away from direct sunlight to reduce accelerated fuel degradation. Keeping the tank full during long-term storage will help to reduce condensation, and regular system inspections can reduce maintenance costs and fuel waste.
