5 Best Diesel Fuel Additives for Cold Weather to Keep Your Engine Running Smoothly

When facing frigid temperatures, ensuring your diesel engine stays operational is crucial. Imagine never having to worry about your engine failing due to cold weather conditions.

With the right diesel fuel additives, you can significantly improve the performance and longevity of your engine. But which additives are truly the best for cold weather conditions?

Learn about the top 5 diesel fuel additives that could make all the difference in keeping your engine running smoothly, especially during those freezing winter months.

STA-BIL Diesel Fuel Stabilizer and Performance Improver (1 Gallon)

If you're looking to safeguard your diesel fuel system against cold weather challenges, the STA-BIL Diesel Fuel Stabilizer and Performance Improver (1 Gallon) is a reliable choice. This product prevents sludge and sediment formation, cleans, and lubricates the fuel system, and protects against corrosion. It also reduces oxidation for optimal fuel stability and removes water from the fuel system. With the ability to treat 1,280 gallons of diesel fuel, this stabilizer is compatible with Ultra-Low Sulfur Diesel and biodiesel blends. The STA-BIL Diesel Fuel Stabilizer contains STA-BILizers for corrosion protection and can be used up to 2 years after opening. Keep your diesel fuel fresh for up to 12 months with this product, recommended for diesel storage tanks. Treat at a rate of 1 oz to 10 gallons of diesel fuel to protect against oxidation and water contamination.

Best For: Those looking to maintain and protect their diesel fuel system for long-term storage.


  • Prevents sludge and sediment formation.
  • Cleans and lubricates the fuel system.
  • Protects against corrosion.


  • May not be necessary for short-term diesel fuel use.

Howes Diesel Treat Anti-Gel and Fuel Lubricator (Casepack of Six 32-Ounce Bottles)

For those seeking a reliable solution to combat diesel gelling and ensure optimal engine performance in cold weather, the Howes Diesel Treat Anti-Gel and Fuel Lubricator offers a proven formula in a convenient case pack of six 32-ounce bottles. This product, manufactured by Howes, provides lubrication for injectors in older diesel engines, preventing diesel gelling and aiding in the maintenance of diesel vehicles and tractors. With positive customer feedback highlighting improved engine performance and injector protection, this diesel fuel additive ranks well in the automotive category on Amazon. The Howes Diesel Treat Anti-Gel and Fuel Lubricator is recommended for older diesel engines using low sulfur diesel and has been endorsed as an effective anti-gel solution by former trucking company employees.

Best For: Those with older diesel engines using low sulfur diesel who want to prevent diesel gelling and maintain optimal engine performance in cold weather.


  • Provides lubrication for injectors in older diesel engines
  • Prevents diesel gelling
  • Positive customer feedback on improved engine performance and injector protection


  • May be pricier compared to other diesel additives

XADO Xtreme DPF Cleaner for Diesel Engines of Heavy Duty Machinery

When dealing with heavy-duty machinery, the XADO Xtreme DPF Cleaner stands out as a reliable solution for cleaning and regenerating diesel particulate filters effectively. This product is specifically designed for diesel engines with DPFs, aiming to remove and dissolve soot particles from blocked filters without the need for disassembly.

By adding the necessary amount to the fuel tank before refueling and driving the vehicle in regular mode, you can increase the DPF's lifespan. It's recommended for use in commercial diesel vehicles and is effective for light to medium blockages. XADO Xtreme DPF Cleaner, with its convenient usage instructions and positive customer reviews, offers a practical solution to maintain the optimal performance of heavy-duty machinery.

Best For: Commercial diesel vehicle owners looking to effectively clean and regenerate diesel particulate filters without disassembly.


  • Removes and dissolves soot particles from blocked filters
  • Increases DPF lifespan
  • Convenient usage with simple instructions


  • Effective for light to medium blockages only

Red Line 70802 85 Plus Diesel Fuel Additives – 12 Ounce (12 Pack)

Boost your diesel engine's power and efficiency during cold weather with Red Line 70802 85 Plus Diesel Fuel Additives. This product, designed for all diesel engines, compensates for low-sulfur fuels and includes a cetane booster for added power. It promotes better fuel combustion, system lubrication, and treats up to 100 gallons per tank with its pack of 12 bottles.

Red Line 70802 85 Plus contains powerful lubricants, detergents, seal conditioners, and rust preventatives to enhance performance. With cetane improvers that boost fuel cetane numbers, it reduces wear in low sulfur fuel by 75% and complies with federal low sulfur content requirements. This additive also cleans fuel injectors with high-temperature detergents, increasing power and efficiency by 5%.

Best For: Ideal for diesel engine owners looking to improve fuel efficiency, power, and engine performance in all weather conditions.


  • Boosts fuel cetane numbers for increased power
  • Cleans fuel injectors with high-temperature detergents
  • Reduces wear in low sulfur fuel by 75% and complies with federal requirements


  • May not be cost-effective for those with minimal fuel usage

2 Bottles DPF Filter Purge (500ml x 2)

Ensure optimal maintenance and efficiency of your diesel particulate filter with the 2 Bottles DPF Filter Purge from MotorPower Care. This diesel additive offers high performance to help with regeneration, keeping your DPF clean from carbon and soot buildup.

By using this product, you can improve fuel economy and prolong the life of your filter without the need for any assembling. The 500ml x 2 bottles provide an economical solution for cleaning and protecting your diesel particulate filter.

With positive customer feedback on product effectiveness and engine efficiency, consider incorporating the Bottles DPF Filter Purge into your regular maintenance routine to keep your engine running smoothly.

Best For: Diesel engine owners looking to improve fuel economy and maintain a clean DPF.


  • Economical solution for cleaning and protecting DPF
  • High performance helps with regeneration
  • Positive customer feedback on product effectiveness


  • Mixed reviews on long-term effectiveness

Factors to Consider When Choosing Diesel Fuel Additives for Cold Weather

When selecting diesel fuel additives for cold weather, you should consider factors like:

  • How they perform in low temperatures
  • Their impact on fuel efficiency
  • The level of engine protection they offer

Testing additive performance, ensuring anti-gel formulation, and understanding the benefits they provide in cold climates are crucial aspects to weigh in your decision-making process.

Make sure to prioritize engine protection and efficiency when choosing the best diesel fuel additives for winter conditions.

Cold Weather Considerations

During colder months, selecting diesel fuel additives tailored for cold weather becomes crucial to prevent fuel issues and maintain optimal engine performance.

Cold weather can cause diesel fuel to gel, leading to fuel filter clogging and engine stalling. To combat this, diesel fuel additives for cold weather should include anti-gel properties to prevent fuel solidification.

Additionally, proper diesel fuel additives can improve cold weather performance by lowering the pour point of the fuel. Look for additives with lubricity enhancers to protect fuel system components from wear and tear in cold conditions.

It's also beneficial to choose diesel fuel additives that contain cetane boosters, as they can improve cold start performance and overall engine efficiency.

Additive Performance Testing

Consider evaluating the performance of diesel fuel additives through rigorous testing to determine their effectiveness in preventing gelling and enhancing cold weather operability.

These tests assess how additives impact fuel flow, filter plugging, and overall engine performance in low temperatures. Moreover, performance testing measures the additive's capability in reducing water accumulation, corrosion, and other winter-related fuel issues.

It also includes evaluating lubricity enhancement, cetane improvement, and anti-icing properties crucial for cold weather functionality. By conducting comprehensive testing, you ensure that diesel fuel additives meet industry standards and deliver reliable performance in cold weather conditions.

Make informed decisions based on the results of these tests to select the best additive for maintaining your engine's efficiency during winter.

Diesel Fuel Efficiency

Wondering what key factors to keep in mind when selecting diesel fuel additives for cold weather?

Cold temperatures can reduce diesel fuel efficiency by impacting combustion. To counter this, opt for additives that enhance combustion, leading to improved mileage. Look for products with cetane boosters as they enhance ignition quality, thereby increasing fuel efficiency.

Anti-gel additives are crucial in preventing fuel gelling in cold weather, ensuring consistent fuel flow and efficiency. Additionally, using fuel stabilizers can prevent oxidation and degradation, maintaining optimal fuel efficiency in low temperatures.

Engine Protection Benefits

To safeguard your engine in cold weather, selecting diesel fuel additives that prevent fuel gelling and enhance combustion efficiency is crucial. These additives play a vital role in maintaining injector cleanliness and preventing clogs in fuel filters and lines caused by gelled fuel. By improving combustion efficiency, they ensure optimal engine performance even in low temperatures.

Additionally, diesel fuel additives for cold weather help prevent corrosion and rust in the fuel system, extending the lifespan of components and reducing maintenance costs. By boosting cetane levels, they enhance fuel ignition and decrease emissions, particularly in chilly conditions.

Moreover, these additives stabilize diesel fuel, prevent water accumulation, and promote smooth engine operation for reliable vehicle startups in cold climates.

Anti-Gel Formulation

When selecting diesel fuel additives for cold weather, prioritize those with effective anti-gel formulations to ensure smooth engine operation.

Anti-gel formulations are crucial in preventing diesel fuel from gelling in low temperatures, which can lead to filter clogging and engine issues.

These additives work by lowering the pour point of the fuel, preventing wax formation that could impede proper engine function.

By improving cold flow properties, anti-gel additives help diesel engines start smoothly even in freezing conditions.

Furthermore, they play a vital role in maintaining fuel system integrity by preventing blockages in the fuel lines caused by gel formation.

Using diesel additives with anti-gel properties is essential during cold weather to prevent fuel thickening and ensure optimal engine performance.

Frequently Asked Questions

Can Diesel Fuel Additives Be Used in All Types of Diesel Engines, Including Heavy Duty Machinery?

Yes, diesel fuel additives can be used in all types of diesel engines, including heavy-duty machinery. They help improve engine performance, protect against wear, and enhance fuel efficiency. Make sure to choose the right additive for your specific needs.

Are Diesel Fuel Additives Safe to Use in Vehicles With Emissions Control Systems Like DPF Filters?

Yes, diesel fuel additives are safe for vehicles with emissions control systems like DPF filters. They can improve fuel quality, engine performance, and protect your system. Always choose additives specifically designed for diesel engines and follow usage guidelines.

How Long Do Diesel Fuel Additives Typically Last Once Added to the Fuel Tank?

Once you add diesel fuel additives to your tank, they typically last throughout the tank until you refill. These products work continuously to maintain engine performance and keep things running smoothly in cold weather conditions.

Can Diesel Fuel Additives Improve Fuel Efficiency in Addition to Preventing Gelling in Cold Weather?

Yes, diesel fuel additives can improve fuel efficiency by enhancing combustion and cleaning fuel injectors. In addition to preventing gelling in cold weather, they optimize engine performance, leading to better mileage and reduced emissions.

Are There Any Compatibility Issues With Using Multiple Diesel Fuel Additives at the Same Time?

Using multiple diesel fuel additives simultaneously can lead to compatibility issues. It's best to stick with one additive that meets your needs. Mixing products might not provide additional benefits and could potentially harm your engine.


In conclusion, choosing the right diesel fuel additive for cold weather is essential to keep your engine running smoothly.

With options like STA-BIL, Howes, XADO, Red Line, and DPF Filter Purge, you can ensure your diesel engine is protected and performing at its best even in the coldest temperatures.

Consider factors such as anti-gel properties, lubrication benefits, and cleaning capabilities when selecting the best additive for your needs.

Stay prepared and keep your engine running strong all winter long.