Mercedes Mullins
Diesel fuel can degrade over time and is best replaced within six to twelve months. Old diesel can cause machinery to break down due to its gummy consistency. It can also clog the filters of generators and cause corrosion. To prevent this, tanks should be cleaned and stored in a cool, dry place. If diesel has degraded, it can be reconditioned by adding PRD-D or ether to neutralize water contamination. Alternatively, old diesel can be disposed of at a city dump's hazmat spot or used as a fire starter.
| Characteristics | Values |
|---|---|
| Storage | Store in a cool, clean, and dry environment without water contact. |
| Storage Container | Use clean tanks and drums. |
| Storage Duration | Best replaced within six to twelve months. |
| Contamination | Avoid water contamination and growth of microorganisms like algae and bacteria. |
| Reconditioning | Use fuel re-conditioners like PRD-D or ether to restore fuel. |
| Precautions | Use water absorbers, stabilizers, and biocides to prevent contamination. |
| Disposal | Dump into a fuel tank, use as a fire starter, or dispose of at a city dump's hazmat spot. |
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What You'll Learn
Reconditioning old diesel fuel
Diesel fuel can degrade over time and may need to be reconditioned for safe use. This can be done by pouring 50 gallons of old diesel fuel into a 50-gallon drum and adding a fuel re-conditioner such as ether or PRD-D. The ratio is 5.6 ounces of ether or 0.0625 ounces of PRD-D per gallon of old diesel fuel. Allow the mixture to sit for a day or two before using the fuel as if it were fresh.
It is important to store diesel fuel properly to prevent degradation and contamination. Diesel should be kept in a cool, clean, and dry environment without contact with water. Tanks should be cleaned and stored in a cool, dry place to avoid humidity and warm conditions that can spoil the fuel.
To avoid reconditioning, a small amount of PRD-D can be added to the diesel before storage. This prevents water contamination, biological growth, and fuel degradation. If water contamination occurs, the diesel will need to be filtered before use as algae and bacteria may have grown. Even after reconditioning, old diesel may still be unsafe to burn, so use caution and judgement before deciding to use reconditioned diesel fuel.
Additionally, old diesel can cause issues in generators and bulk tanks, leading to breakdowns and corrosion. It is recommended to keep generators and tanks clean and dry, and to regularly check for signs of spoilage, such as black smoke, rotten smell, and gel-like consistency. Using water absorbers, stabilizers, and biocides can help prevent contamination and maintain the integrity of the fuel and equipment.
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Storing old diesel fuel
Storage Environment
The storage environment plays a crucial role in preserving diesel fuel. It is recommended to store diesel in a cool, dry, and shaded area, maintaining temperatures around 70 degrees Fahrenheit. Storing diesel above 95 degrees Fahrenheit or under 32 degrees Fahrenheit will accelerate fuel degradation. Additionally, keep the fuel away from direct sunlight, as it can further expedite the degradation process. Consider underground storage or a well-insulated area to protect the fuel from extreme weather conditions.
Fuel Containers
When storing large amounts of diesel fuel, opt for sturdy and secure containers like 55-gallon drums, fuel tanks, or steel jerry cans. Cube-style tanks offer more benefits than cylinder-style tanks, and using double-walled containers provides extra protection. Ensure that the containers are well-constructed and made from high-density polyethylene (HDPE) if using plastic storage cans.
Preventing Contamination
Diesel fuel is susceptible to contamination and oxidation. To prevent microbial growth, keep the containers properly sealed and full to minimize air exposure. Use biocides to inhibit bacterial and fungal growth, and regularly inspect the fuel for any signs of contamination. If contamination occurs, consider fuel polishing and tank cleaning services to reclaim usable fuel.
Additives and Stabilizers
Additives and stabilizers can extend the lifespan of diesel fuel. Use multifunctional fuel additives like Biobor DC or MD to stabilize the fuel, improve cetane levels, add lubricity, detergency, and disperse water. Fuel stabilizers and anti-fungals, such as Marine Diesel-Kleen, can also help maintain fuel quality. Additionally, consider using a water separator filter to minimize water-related issues.
Maintenance and Inspection
Regularly inspect your fuel system and maintain it properly. Drain and filter out any sediment or sludge that accumulates over time. Be mindful of the additives used, as some may degrade and cause issues. Mixing old diesel with fresh diesel or using additives like Diesel 911 cetane boost can help rejuvenate old fuel.
By following these guidelines, you can effectively store old diesel fuel and prolong its lifespan.
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Using old diesel fuel for generators
Using old diesel fuel in generators can cause a host of issues. Diesel fuel generally lasts 6 to 12 months if stored in a cool, dry, and clean place without water contact. However, after 90 days, diesel fuel can start to discolour, and solids can form, making it thicker and clogging the fuel filters, which can put your generator at risk. This can lead to damage to the fuel injectors and injection pump, compromising the generator's performance and potentially causing extensive repairs or even rendering it unsalvageable.
To mitigate the risks of using old diesel fuel, it is important to regularly inspect and maintain your generator and its fuel. Check for signs of spoilage, such as black smoke, a rotten smell, and a gel-like consistency. Additionally, ensure that your fuel tanks are clean and stored in optimal conditions to improve the shelf life of the diesel.
If your old diesel fuel has been contaminated, fuel polishing can be performed by running the diesel through several filters from one tank to another to remove impurities. However, it is essential to assess the length of time the diesel has been stored and its level of degradation on a case-by-case basis. Fuel that is more than one to two years old is potentially harmful and should not be used.
To summarise, using old diesel fuel in generators can be risky, and it is crucial to prioritise the maintenance and inspection of your generator and fuel to ensure optimal performance and avoid potential damage.
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Using old diesel fuel for fires
To use old diesel fuel for a fire, it's recommended to mix it with other materials. Some people suggest using a mixture of diesel and gasoline, with a ratio of 3:1 diesel to gasoline for a "hot mix" in a drip torch. However, it's important to exercise caution when mixing fuels, as it can be risky. Additionally, the use of gasoline is highly discouraged due to its highly explosive nature.
Another method is to soak sawdust with diesel, drain the excess, and spread the sawdust where you want your fire. This allows the diesel to act as a catalyst, aiding in the ignition of the sawdust. It's important to use dry materials for burning, as burning wet or humid substances can produce high levels of carbon monoxide.
When using diesel to start a fire, it's generally recommended to use a small amount. You can soak a rag, paper towel, or piece of cardboard with diesel and place it among the kindling and dry wood. Cardboard, in particular, ignites quickly and burns longer than paper. However, it's important to be cautious when using diesel-soaked materials, as they can combust unexpectedly.
While diesel can be used to start fires, it's essential to prioritize safety. Some people have expressed concerns about the potential for poisonous fumes, especially when burning diesel indoors. Additionally, burning diesel can produce smoke and soot, which may be undesirable. Therefore, it's recommended to use alternative methods to start a fire, such as using newspaper, cardboard, or dry kindling, whenever possible.
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Disposing of old diesel fuel
Identify the Fuel:
Firstly, identify the type of fuel you have. Different fuels may require distinct disposal methods. For instance, diesel fuel typically lasts longer than gasoline when stored under proper conditions.
Containment and Storage:
Ensure the diesel fuel is stored in a suitable container, preferably the original one or a certified fuel container. Keep it sealed, properly labelled, and stored in a cool, dry place away from heat, sparks, and open flames.
Personal Protective Equipment:
When handling old diesel fuel, always wear protective gear, including gloves, goggles, and long sleeves, to prevent direct skin contact and inhalation of dangerous fumes.
Ventilation and Fire Safety:
Work in a well-ventilated area to reduce the risk of fume inhalation. Be extremely cautious to avoid any sources of ignition, as diesel fuel is highly flammable.
Disposal Options:
There are several options for disposing of old diesel fuel:
- Contact Local Waste Management: Reach out to your local waste management facility or recycling centre to inquire about their hazardous waste disposal programs and acceptance of old diesel fuel. Some may accept household amounts of uncontaminated diesel fuel if delivered in a spill-proof container and labelled as hazardous waste, usually for a fee.
- Auto Repair Shops: Some auto repair shops accept hazardous fluids, including diesel fuel, for disposal or recycling.
- Waste Fuel Blenders: Waste fuel blenders may take old diesel fuel, but they typically do not offer any monetary compensation.
- Alternative Uses: Old diesel fuel can be used for vegetation control or burned for heat in fireplaces or heaters. It can also be mixed with additives and added to your fuel tank in small amounts. However, it is essential to exercise caution and ensure it meets fuel standards before reuse.
Compliance and Regulations:
When disposing of old diesel fuel, it is crucial to comply with local, state, and federal regulations. Improper disposal can result in legal consequences and environmental damage. Consult with experts in hazardous waste management if you are unsure about the proper disposal methods.
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Frequently asked questions
Using old diesel can cause machinery to break down as it tends to stick to the pipes. It can also clog the filters of generators and cause corrosion.
Old diesel fuel can be dumped into a fuel tank and run in a vehicle. It can also be used to start fires, but use caution and only pour a small amount. Many city dumps have a hazmat spot where old diesel fuel can be dumped.
Old diesel fuel can be reconditioned by allowing it to sit for a day or two and then using it as if it were fresh from the pump. It can also be reconditioned by adding PRD-D or ether to it before storage to prevent water contamination and biological growth.
