Diesel Additive for Storage: How To Choose What’s Best For You

Diesel Additive for Storage

Are you looking for ways to keep your stored diesel fuel in top shape when you need it? You’re not alone. Many people store diesel for generators, farm equipment, or even boats, but not everyone knows how to keep it fresh over time.

This is where diesel additives come into play. Think of them like vitamins for your fuel; they help maintain their quality and ensure your engines run smoothly when the time comes. In this article, we’ll guide you through the basics of diesel additives used for storage – explaining what they are, why they’re important, and how to pick the right one for your needs.

Whether you’re a seasoned pro or new to diesel storage, our easy-to-understand tips will help you make the best choice for your diesel fuel.

Popular Brands of These Diesel Additives

When looking for diesel additives specifically designed for storage, there are several reputable brands and products to consider. Each brand offers unique benefits and specific features that make them suitable for different storage needs. Here’s a breakdown of some popular brands and their key specifications:

  1. Sta-Bil Diesel Fuel Stabilizer
    • What: Sta-Bil’s diesel fuel stabilizer is designed to keep diesel fuel fresh for quick, easy starts after storage and to protect against fuel degradation and oxidation.
    • Why It’s Best: It’s ideal for prolonging the life of diesel fuel in storage tanks, particularly for seasonal storage. It also helps prevent sludge and sediment formation and is safe for all diesel engines.
  2. Power Service Diesel Kleen + Cetane Boost
    • What: This is a multifunctional diesel additive that cleans injectors, boosts cetane, and lubricates fuel system components.
    • Why It’s Best: While primarily a performance enhancer, its cleaning and lubricating properties make it suitable for diesel stored over shorter periods, helping to maintain fuel quality and engine health.
  3. Opti-Lube XPD Diesel Fuel Improver
    • What: Opti-Lube XPD is a diesel additive that focuses on increasing lubricity and preventing fuel system wear.
    • Why It’s Best: It’s great for stored diesel as it helps maintain fuel stability and protects against corrosion, making it suitable for both long-term and short-term storage.
  4. Howes Diesel Treat
    • What: Howes Diesel Treat is known for preventing diesel fuel from gelling in cold weather and for removing water from the fuel system.
    • Why It’s Best: This additive is particularly effective in cold climates, ensuring that stored diesel remains fluid and doesn’t develop issues related to moisture or low temperatures.
  5. Lucas Fuel Treatment
    • What: Lucas Fuel Treatment is designed to increase power and fuel mileage, lower exhaust emissions, and clean and lubricate the fuel system.
    • Why It’s Best: While it’s a general fuel treatment, its cleaning and lubricating properties can benefit diesel engines that have been sitting idle, ensuring smoother operation when the stored diesel is eventually used.

When selecting a diesel additive for storage, consider factors such as the length of storage, climate conditions, and the specific needs of your diesel engine or equipment. It’s also crucial to follow the manufacturer’s instructions regarding the proper use and dosage of these additives.

Read related article: Howes Diesel Treatment: Does It Bring Any Good?

How to Choose the Right Diesel Additive

Choosing the right diesel additive for your storage needs might seem confusing, but it’s pretty straightforward once you know what to look for. Here’s a simple guide to help you pick the best additive for your diesel:

1. Think About How You’re Storing Your Diesel

  • Indoor or Outdoor: Are you keeping your diesel in a garage or outside? Outdoor storage might need different additives compared to indoor because of temperature changes and exposure to the elements.
  • Size of Storage Tank: The size of your tank can influence the amount and type of additive you need. Bigger tanks might need a stronger additive.

2. How Long Will You Store the Diesel?

  • Short-Term vs. Long-Term: If you’re storing diesel for just a few weeks or months, you might need a different additive compared to storing it for a year or more. Long-term storage usually needs additives that prevent fuel from breaking down over time.

3. Consider Your Local Climate

  • Hot vs. Cold Climates: If you live in a hot area, you’ll need additives that prevent evaporation and degradation due to heat. In colder regions, look for additives that prevent the diesel from thickening or gelling when it gets cold.

Tips for Selecting the Right Product

  1. Read the Labels: Check the product descriptions and see which conditions they’re best suited for. If you’re unsure, labels are a great place to start.
  2. Ask for Recommendations: Don’t hesitate to ask for advice at your local store or from people you know who also store diesel. They might have valuable insights based on experience.
  3. Consider Brand Reputation: Go for brands known for quality. A little research online can tell you which brands are trusted.
  4. Safety First: Ensure the additive doesn’t contain harmful chemicals, especially if you’re storing diesel at home.
  5. Check Compatibility: Make sure the additive is suitable for your diesel engine or equipment. Not all additives work with all engine types.

Remember, the right additive keeps your diesel in good condition and ensures your equipment runs efficiently when you need it. Take your time to choose the best one for your situation.

What are Diesel Additives for Storage By The Way?

Diesel additives for storage are like special treatments you add to your diesel fuel to keep it in good shape while it’s not being used. Just like how you might take vitamins to stay healthy, these additives help diesel fuel stay fresh and ready for when you need it. Here’s a simple breakdown of what they are and how they work:

1. What are Diesel Additives for Storage?

  • Simple Explanation: They are like protective boosters you mix with your diesel. When you’re not using your diesel for a while, like in a generator or a boat over winter, these additives help make sure the fuel doesn’t go bad.

2. Types of Additives Available for Diesel Storage:

  • Stabilizers: These are like preservatives for your diesel. They stop the fuel from breaking down over time, which can happen when it sits unused for months.
  • Biocides: Just like how hand sanitizer kills germs, biocides kill tiny microbes and bacteria that can grow in diesel fuel. This growth can block your fuel filters and damage your engine.
  • Corrosion Inhibitors: These additives are like a protective coat. They prevent rust and corrosion in your fuel tank and the rest of the fuel system, which can happen when moisture gets into the diesel.

3. How These Additives Work to Preserve Diesel Quality:

  • Maintaining Chemical Stability: Stabilizers prevent the chemical makeup of the diesel from changing over time. This change, known as oxidation, can make the diesel less effective and even harmful to engines.
  • Preventing Microbial Growth: Biocides stop bacteria and fungi from growing in the diesel. These microbes can create sludge and clog fuel filters, leading to engine problems.
  • Protecting Against Rust and Corrosion: Corrosion inhibitors create a barrier that keeps moisture and other elements from causing rust and corrosion in the fuel system. This is especially important in places with high humidity or in marine environments.

By using these additives, you ensure that your diesel stays in good condition, protecting your investment and ensuring your equipment is ready to go when you need it.

The Benefits of Using Diesel Additives for Storage

Using diesel additives for storage is a smart move for anyone who needs to store diesel fuel for an extended period. These additives play a crucial role in preventing fuel degradation, which is essential for maintaining the efficiency of the fuel. When diesel sits unused, it can start to break down, losing its potency and effectiveness.

By adding these additives, you’re essentially giving the diesel a shield against this degradation, ensuring that when you do use it, it delivers the same level of performance as fresh fuel.

Another significant benefit of these additives is their ability to extend the life of your diesel fuel. This is particularly important for those who might not use their diesel-powered equipment regularly. Think about farmers in off-seasons or boat owners in winter. The additives keep the fuel in usable condition for longer, saving money and time that would otherwise be spent on replacing stale fuel.

Lastly, one of the biggest advantages of using these additives is the reduction in maintenance issues in engines that run on stored diesel. When diesel degrades, it can lead to a host of problems like clogged filters, injector malfunctions, and even complete engine failure. These issues are not just inconvenient but can also be costly to fix.

By using diesel additives, you’re keeping the fuel clean and efficient, which in turn keeps the engine running smoothly. This means less time and money spent on repairs and maintenance, and more time enjoying the reliability of your diesel-powered equipment.

Does diesel need a fuel stabilizer for storage?

Yes, diesel fuel generally does need a fuel stabilizer when you’re storing it for a while. Here’s why in simple terms: When diesel sits unused for a long time, it can start to go bad, kind of like food that spoils.

This happens because of reactions with oxygen and the growth of tiny microbes. A fuel stabilizer is like a preservative for your diesel. It helps keep it fresh, stopping it from breaking down or getting contaminated.

So, if you’re planning to store diesel for a few months or longer, especially for things like generators, boats, or farm equipment, adding a stabilizer is a good idea to make sure it works well when you need it later.

How Can You Make Your Diesel Last Longer in Storage?

Making your diesel fuel last longer in storage involves a few key steps to ensure it stays fresh and effective for when you need to use it. Here’s how you can do it:

  1. Use a Fuel Stabilizer: Adding a diesel-specific fuel stabilizer is one of the most effective ways to prolong the life of your stored diesel. It helps prevent the fuel from degrading and oxidizing over time. Make sure to add the stabilizer according to the instructions on the product.
  2. Store Diesel in a Clean, Dry, and Dark Place: Keep your diesel in a location that’s free from moisture, dirt, and direct sunlight. Sunlight and heat can speed up the degradation process of diesel, while moisture can lead to contamination and fuel breakdown.
  3. Use a Good-Quality, Sealed Container: Store the diesel in high-quality fuel cans or tanks that are airtight. This helps prevent contamination from water and air, as well as evaporation of the fuel.
  4. Keep the Storage Tank Full: A full tank has less room for air, which reduces the risk of condensation forming inside the tank. Water from condensation can lead to microbial growth and fuel spoilage.
  5. Regularly Check for Contamination: Periodically check the stored diesel for signs of contamination or degradation, like a darkening of the fuel or a strange odor. Also, look for water or sediment accumulation at the bottom of the tank.
  6. Maintain Optimal Storage Conditions: If possible, keep the storage area at a stable, cool temperature. Extreme temperature fluctuations can negatively impact the quality of the diesel.
  7. Rotate the Stock: If you have the opportunity, use and replenish your stored diesel periodically. This practice, known as fuel rotation, ensures that the diesel doesn’t sit unused for too long.
  8. Use Biocides if Necessary: If you’re storing diesel for very long periods, consider using a biocide to prevent microbial growth, which can clog fuel filters and corrode the fuel system.
  9. Regular Maintenance of Storage Tanks: Ensure your storage tanks are clean and in good condition. Rust or corrosion inside the tank can contaminate the diesel.
  10. Follow Manufacturer’s Recommendations: Always follow the guidelines provided by the diesel manufacturer and the stabilizer product for optimal results.

By following these steps, you can significantly extend the lifespan of diesel fuel in storage, maintaining its quality and efficiency for when it’s needed.


Choosing the right diesel additive for storage is a key step in ensuring your fuel remains in top condition over time. Whether you’re storing diesel for seasonal equipment, emergency generators, or any other purpose, understanding the type of additive that suits your storage conditions and needs is crucial. Remember to consider factors like the duration of storage, climate conditions, and the specific requirements of your diesel engine.

With the right additive, you can prevent fuel degradation, extend the life of your diesel, and reduce maintenance issues, ultimately saving time and money. By following the guidelines we’ve discussed, you’ll be well-equipped to make an informed decision that ensures your diesel is ready and reliable whenever you need it.

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