Clearing Diesel Fuel Tanks: Removing Gel Efficiently

how to clear a diesel fuel tank some gel

Gelling in diesel fuel tanks is a common issue, especially in cold weather. It occurs when the temperature drops, causing the wax in the fuel to crystallize and thicken, which can clog fuel lines and filters, preventing the engine from running. To clear a diesel fuel tank of gel, you can use an emergency additive, such as Diesel Winter Rescue, or alter the temperature point at which gelling occurs by mixing in an anti-gel fuel additive. Additionally, regularly cleaning your diesel fuel tank and ensuring it is free from sediment and sludge can help prevent gelling issues.

How to clear a diesel fuel tank of gel

Characteristics Values
How to prevent gelling Store the vehicle in a heated area during winter, add anti-gel fuel additives, use kerosene, or use Diesel Winter Anti-Gel
How to treat gelling Use Diesel Winter Rescue, add Diesel 9-1-1, use Clear-Diesel Fuel & Tank Cleaner, or use Diesel Kleen +Cetane Boost
How to clean a diesel tank Drain the tank, remove sludge, and replace the fuel gauge

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Use anti-gel additives to prevent gelling

Diesel fuel contains wax, which is usually a liquid in solution in the fuel. However, when temperatures drop, the wax crystallizes, causing the fuel to gel. This gelled fuel can block engine fuel filters and cause the engine to stop working. To prevent this, you can use anti-gel additives, which lower the freezing point of diesel fuel and make it less likely to freeze in cold temperatures.

Anti-gel additives are designed to lower the Cold Filter Plugging Point (CFPP), which is the lowest temperature at which fuel will still flow through a specific filter. By adding an anti-gel additive, you can prevent the fuel from gelling and keep your engine running smoothly. It is recommended to start using anti-gel additives when temperatures are below freezing (32°F), and to add more if there is a rapid drop in temperature. Most additives can be added before or after you fill up your fuel tank, and it is generally suggested to follow the instructions on the bottle of the anti-gel product.

There are several anti-gel additives available on the market, such as Hot Shot's Secret Diesel Winter Anti-Gel, Fuel Ox® Star Plus™, and Power Service Diesel Fuel Supplement +Cetane Boost. These products can help prevent fuel gelling and protect your engine during cold weather. For example, Hot Shot's Secret Diesel Winter Anti-Gel has a pour point of -65° F, providing excellent cold weather protection.

In addition to using anti-gel additives, you can also take other measures to prevent fuel gelling. For instance, some vehicles are equipped with a heater located in the fuel filter housing to prevent the filter from clogging due to gelling. Furthermore, in areas that frequently experience freezing temperatures, fuel suppliers may switch to a winter blend of diesel, which is designed to perform better in cold weather.

By using anti-gel additives and taking preventive measures, you can effectively reduce the risk of fuel gelling and ensure the optimal performance of your diesel engine during cold temperatures.

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Store the tank in a heated area

Storing a diesel fuel tank in a heated area is not recommended. Diesel fuel should be stored in a cool, dry place, away from direct sunlight, to ensure longevity and stability. The ideal temperature for storing diesel fuel is below 70 degrees Fahrenheit.

Keeping diesel fuel cool is essential to extending its storage life. At temperatures above 70 degrees Fahrenheit, diesel fuel can begin to degrade, and its storage life will be shortened. By maintaining a cool temperature, you can expect a storage life of between six to eighteen months for diesel fuel.

Additionally, it is crucial to keep the fuel dry. Condensation can occur when fuel levels are too low, leading to water contamination. To prevent this, it is recommended to keep the tank full during long-term storage.

If you are experiencing issues with gelled diesel fuel, there are additives available that can help reliquify the gelled fuel. These additives, such as Diesel Winter Rescue or Diesel Winter Anti-Gel, can be added directly to the fuel tank to address gelled fuel and prevent future gelling.

When using additives, it is important to follow the recommended dosage. For example, Diesel Winter Rescue recommends adding 32 ounces of the additive to every 40 gallons of fuel in the tank.

By storing diesel fuel in a cool, dry place and utilizing appropriate additives when needed, you can effectively maintain the quality and stability of the fuel over the long term.

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Drain and clean the tank

To drain and clean your diesel fuel tank, start by locating the tank drain hole, which is usually in a front corner of the tank, directly below the bottom of the fuel feed pipe. Place a container underneath the drain hole to catch the drained fuel. Open the drain and allow the fuel to flow out. If the fuel appears contaminated, do not reuse it and dispose of it properly.

If your tank is located in a hard-to-reach area, you may need to siphon the fuel instead of draining it. Siphoning can also help you get more fuel out of the tank compared to draining. If you are unable to drain or siphon the fuel, you may need to remove the tank for easier access.

Once the tank is empty, use a flashlight to inspect the interior for any sludge, sediment, or other contaminants. If present, use a scoop or brush to remove as much of the solid debris as possible. You can also try using a garden sprayer with a cleaning solvent to dislodge any remaining residue. Rinse the tank thoroughly with hot water and soap or steam, ensuring that all cleaning agents are removed.

After cleaning, allow the tank to air dry completely before refilling it with fresh diesel fuel. It is important to ensure that your tank is properly cleaned and dried to prevent future engine issues caused by contaminated fuel.

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Use a filter funnel and anti-bug chemicals

To clear a diesel fuel tank of gel, one method is to use a filter funnel and anti-bug chemicals. This is a preventative method, minimising the risk of diesel bugs and other contaminants clogging your fuel tank and engine.

Firstly, ensure your fuel cap is tightly sealed. The o-ring should be made of fuel-resistant Nitrile (buna-N) and lubricated with o-ring grease or petroleum jelly. This will help to keep water out, as water ingress can lead to the growth of microbes and bacteria.

Next, use a filter funnel when filling up your tank. This will help to filter out any contaminants and prevent them from entering your fuel tank.

Additionally, you can add anti-bug chemicals to your fuel tank. These chemicals kill bacteria and other contaminants that can cause issues with your fuel system. One such product is Bio Kleen Diesel Fuel Biocide. However, it is important to note that overuse of biocides can lead to the development of biocide-resistant microbes and corrosion of your fuel system.

Another preventative measure is to use a fuel additive, such as Hot Shot's Secret Diesel Winter Anti-Gel, which can be added to your fuel tank during fill-up. This product helps to prevent fuel gelling by lowering the cold filter plug point, allowing your fuel to flow more easily in cold temperatures.

By using a combination of these methods, you can help to keep your diesel fuel tank clear of gel and maintain the health of your fuel system.

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Use Diesel 9-1-1 to reliquify gelled fuel

Diesel 9-1-1 is a winter emergency product that can be used to reliquify gelled diesel fuel and de-ice frozen fuel filters. It is designed to be used when a vehicle won't start or gain power in cold weather.

To use Diesel 9-1-1 to reliquify gelled fuel, follow these steps:

  • Add the entire contents of the Diesel 9-1-1 bottle to the fuel tank. The amount required depends on the capacity of your fuel tank. For example, for a 20-gallon tank, add 16 ounces of Diesel 9-1-1, for a 50-gallon tank, add 26 ounces, for a 100-gallon tank, add 80 ounces, and for a 125-gallon tank, add 64 ounces.
  • Remove the fuel filters and fill them with a mixture of equal parts Diesel 9-1-1 and diesel fuel.
  • Reinstall the fuel filters.
  • Start the engine and let it idle to warm up the fuel system.
  • To prevent future fuel gelling, add a fuel supplement such as Power Service Diesel Fuel Supplement +Cetane Boost as directed.

It is important to note that Diesel 9-1-1 is not a preventive measure and will not stop fuel from gelling. To prevent fuel gelling, use a fuel supplement or additive before the gelling occurs. Additionally, always follow the manufacturer's instructions and recommendations for usage and compatibility.

Other products that can be used to reliquify gelled diesel fuel include Hot Shot's Secret Diesel Winter Rescue and Diesel Winter Anti-Gel. These products are designed to be added to the fuel tank to prevent and treat gelled diesel fuel.

Frequently asked questions

If your diesel vehicle won't start or stops operating in cold temperatures, you may have a gelling issue. Gelling can occur when the temperature of the fuel drops, causing the wax in the fuel to crystallize and thicken.

One way to prevent gelling is to store your vehicle or engine in a heated area during the winter months. You can also add a winter fuel additive or anti-gel treatment to your diesel fuel tank.

You can use an emergency additive such as Hot Shot's Secret Diesel Winter Rescue or Diesel 9-1-1 to reliquify gelled fuel. Add the entire contents (32 ounces) of Diesel Winter Rescue to every 40 gallons of fuel in the tank.

To clean your diesel fuel tank, start by pumping or draining excess water and fuel contaminants from the bottom of the fuel tank until diesel fuel appears. Then, add a fuel tank cleaner such as Clear-Diesel Fuel & Tank Cleaner or Diesel Winter Anti-Gel to the fuel.

Not cleaning your diesel fuel tank can lead to blockages in the fuel system, clogged fuel lines, and fuel filter issues, which can cause engine failure.

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