Katerina Swanson
Diesel fuel is a critical resource for emergency preparedness, powering generators, machinery, and vehicles when other energy sources are unavailable. While it can be stored in plastic containers, it is important to note that diesel fuel has a limited shelf life and is susceptible to contamination. The storage life of diesel fuel is affected by various factors, including the quality of the fuel, exposure to moisture, and the airtightness of the container. On average, diesel fuel can last between 6 to 12 months in storage, but this timeframe can be shorter or longer depending on the storage conditions.
| Characteristics | Values |
|---|---|
| Recommended storage containers | Metal or plastic containers specifically designed for fuel storage |
| Plastic container material | HDPE (high-density polyethylene) |
| Plastic container storage duration | 3 months maximum |
| Diesel shelf life | 6 months to 1 year on average, up to 2 years under ideal conditions |
| Factors affecting shelf life | Exposure to moisture, air tightness, quality of fuel |
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What You'll Learn
Plastic containers should be made from HDPE to store diesel
Diesel fuel is a critical resource for emergency preparedness, powering generators, machinery, and vehicles when other energy sources are unavailable. While it is beneficial to stock up on diesel fuel when the price is low, storing it on-site comes with certain risks.
One of the biggest challenges with modern diesel is its limited shelf life. Regulatory changes have reduced sulfur content, improving environmental impacts but compromising fuel stability. Ultra-low sulfur diesel (ULSD) has become increasingly popular, but it has made the fuel more unstable. Under the best conditions, it can be stored for a maximum of two to three years.
Moisture is one of the biggest threats to the long-term storage of diesel. Water in the form of condensation will form in storage containers over time, contributing to the growth of bacteria, which can cause the fuel to take on a sludgy consistency. This degraded diesel can cause severe damage to sensitive internal components such as the fuel injector or diesel engine.
To prolong the life of diesel fuel, it is recommended to store it at a cool temperature, ideally around 70 degrees Fahrenheit. Adding biocides and stabilizers can also help preserve its quality. With optimal management, including temperature control and contamination prevention, diesel fuel can be stored for up to 1.5 to 2 years.
When it comes to storage containers, plastic containers made from HDPE (high-density polyethylene) are recommended for storing diesel fuel. HDPE containers are designed to withstand solvents, as they are surface-treated to resist chemical solvents. This type of plastic is strong and durable, making it suitable for holding hazardous waste for extended periods. While HDPE may degrade slower than other plastics, it is not impervious to degradation and can eventually lead to leaks or contaminate the fuel. Therefore, it is crucial to follow government guidelines and dispose of diesel fuel after the recommended storage period of six months.
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Diesel can be stored for 6-12 months
Diesel fuel is a critical resource for emergency preparedness and powering generators, machinery, and vehicles when other energy sources are unavailable. It is possible to store diesel fuel in plastic containers, but it is essential to follow proper guidelines to preserve fuel quality and prevent deterioration.
The shelf life of diesel fuel in storage can vary depending on various factors, but it typically lasts between 6 to 12 months on average. This timeframe can be extended with ideal storage conditions and proper maintenance. One of the critical factors affecting diesel fuel's longevity is its susceptibility to contamination and degradation. Within 28 days of storage, diesel fuel can start to become contaminated and degrade, especially if exposed to moisture.
To prolong the life of stored diesel fuel, it is recommended to store it in a cool, dry place, preferably around 70 degrees Fahrenheit, to slow down the degradation process. Additionally, using containers specifically designed for fuel storage, such as those made from HDPE (high-density polyethylene), can help prevent the fuel from breaking down the plastic and leaking.
It is also important to keep the containers airtight and free from exposure to oxygen, as oxidation can react with compounds in the diesel, creating high acid values and unwanted byproducts. Regularly inspecting the fuel for signs of degradation, such as sludge, rust, or particulate matter, can help identify potential issues before they cause damage.
By following these guidelines and best practices, diesel fuel can be safely stored in plastic containers for 6 to 12 months, and sometimes even longer under optimal conditions.
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NFPA 110 refers to diesel storage life as 1.5 to 2 years
Diesel fuel is a critical resource for emergency preparedness, powering generators, machinery, and vehicles when other energy sources are unavailable. However, storing diesel fuel comes with challenges due to its limited shelf life. NFPA 110, which sets standards for emergency power systems, defines the "Storage Life" of diesel fuel as 1.5 to 2 years. This means that diesel fuel should be consumed or replaced within this timeframe to ensure optimal quality.
NFPA 110 recommends that tanks are sized appropriately for the fuel to be consumed within the storage life. If the fuel is not consumed within this period, it is considered stale and should be replaced with fresh fuel. Failing to meet this condition can lead to three main threats to the quality of the diesel: microbial growth, oxidation, and the presence of contaminants. These factors can cause the diesel to degrade quickly, and you may notice clogged filters and rust on the filler cap as early signs of these issues.
The shelf life of diesel fuel is impacted by modern refining processes, environmental and economic concerns, and regulatory changes. Today's diesel fuel is more unstable and susceptible to contamination. The reduction in sulfur content, while beneficial for the environment, has made diesel less stable and more prone to microbial growth. This results in the formation of sludge, rust, and particulates that can damage sensitive equipment and engines.
To prolong the storage life of diesel fuel, it is recommended to store it in approved metal or plastic containers specifically designed for fuel storage. Plastic storage cans should be made from HDPE (high-density polyethylene) as other plastics can break down rapidly when in contact with diesel fuel. Even HDPE is not impervious to degradation and can eventually lead to leaks or fuel contamination. On-site storage of diesel fuel should also be managed optimally, including temperature control and contamination prevention, to achieve the maximum storage life of 1.5 to 2 years.
Overall, while diesel fuel is a valuable resource for emergency preparedness, its storage requires careful consideration to maintain its quality and prevent degradation. NFPA 110's reference to a diesel storage life of 1.5 to 2 years highlights the importance of proper storage practices to ensure the fuel remains usable and safe for equipment.
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Diesel is susceptible to contamination
Diesel is a critical resource for emergency preparedness, powering generators, machinery, and vehicles when other energy sources are unavailable. While it can be stored, it is essential to follow proper guidelines to preserve fuel quality and prevent deterioration.
Oxidation is another chemical reaction that occurs when diesel fuel is introduced to oxygen, creating high acid values and unwanted gum, sludge, and sediment. Microbial contamination can also occur in the form of bacteria, molds, and fungi, causing issues in stored fuel.
To prolong the life of diesel fuel, it should be stored in approved metal or plastic containers specifically designed for fuel storage. Plastic storage cans are acceptable if made from HDPE (high-density polyethylene), as other forms of plastic can break down rapidly in prolonged contact with diesel fuel. Optimal management, including temperature control and contamination prevention, can extend the storage life of diesel fuel up to 1.5 to 2 years.
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Microbial growth is a threat to stored diesel
Diesel fuel is susceptible to microbial contamination, which can cause severe damage to engines and machinery. Microbial growth is a significant threat to stored diesel, and it can render the fuel unreliable and unsafe for use.
Microbial contamination of diesel fuel is primarily caused by the presence of water, which creates favourable conditions for microbes such as bacteria and fungi to grow. This contamination often occurs due to condensation, rainwater penetration, or adsorption from the air, and it can happen on the tank walls or at the interface between oil and water. Species that may grow in this environment include bacteria such as Clostridium, Desulfotomaculum, and Pseudomonas, as well as fungi like Aspergillus and Candida keroseneae.
The growth of microbes in diesel fuel produces acidic byproducts that increase corrosion and cause deposits that can lead to premature wearing of engine components. Additionally, microbial growth can clog fuel filters due to biomass formations, restrict the flow of fluid, and damage engines. The contamination also affects the colour and smell of the fuel, turning it a dark khaki colour and emitting a rotten odour.
The risk of microbial growth in diesel fuel has increased due to environmental regulations that have reduced the sulfur content in diesel to decrease air pollutants. While these regulations have improved the environmental impact of diesel, they have also made the fuel less stable and more prone to microbial growth.
To mitigate the threat of microbial growth in stored diesel, it is crucial to control tank water buildup and maintain optimal storage conditions. Storing diesel in approved metal or plastic containers specifically designed for fuel storage can help prolong its lifespan. Additionally, keeping the fuel cool, around 70 degrees Fahrenheit, and adding biocides and stabilizers can also preserve its quality.
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Frequently asked questions
Diesel fuel can be stored in plastic containers for 6 to 12 months on average, but this depends on the type of plastic and the quality of the fuel. Plastic containers made from HDPE (high-density polyethylene) are safe for storing diesel fuel but are not impervious to degradation over extended periods. Diesel is a chemical solvent that can break down plastic materials over time.
The presence of water or moisture can cause microbial growth, which can lead to sludge formation and damage to sensitive internal components such as the fuel injector or engine. Exposure to oxygen can also cause oxidation, resulting in the formation of unwanted gum, sludge, and sediment.
Yes, steel or metal containers are commonly used for storing diesel fuel. Steel jerry cans and drums are recommended for optimal fuel preservation and can be stored upright or horizontally on steel storage racks.
