
Diesel fuel supplements are used to improve engine performance, particularly in cold weather conditions. They are designed to prevent fuel gelling and protect against fuel-filter icing, which can cause severe damage to diesel engines. Some diesel fuel supplements are designed for use only in winter, while others can be used year-round. The Truck and Engine Manufacturers Association (EMA) believes that cetane, a key component in diesel fuel supplements, is a year-round concern. However, some users opt to switch between different additives depending on the season.
| Characteristics | Values |
|---|---|
| Use case | Diesel Fuel Supplement is used to improve engine performance, enable trouble-free winter operation, and maintain proper fuel tank hygiene. |
| Performance improvement | Diesel Fuel Supplement improves engine performance by raising the cetane rating of diesel fuel, improving ignition speed, and acting as a lubricant. |
| Winter operation | Diesel Fuel Supplement prevents fuel gelling and protects against fuel-filter icing in cold winter months. |
| Fuel tank hygiene | Diesel Fuel Supplement helps maintain proper fuel tank hygiene by removing excess water and contaminants from the fuel. |
| Compatibility | All Power Service products, including Diesel Fuel Supplement, are compatible with each other and can be used simultaneously. |
| Endorsements | Diesel Fuel Supplement is endorsed by Cummins and safe for use in all diesel engines. |
| Usage instructions | It is recommended to use one ounce of Diesel Fuel Supplement per 10 gallons of diesel fuel, following the manufacturer's instructions for the specific product and tank size. |
| Price | Prices for a 1-quart bottle range from $8 to $25, with larger-quantity containers also available. |
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What You'll Learn

Diesel Fuel Supplement +Cetane Boost is a winter additive
The additive is available in various sizes, including 12-ounce, 16-ounce, 26-ounce, 32-ounce, 64-ounce, 80-ounce, 1-gallon, 2.5-gallon, 55-gallon drum, and 260-gallon tote. The amount of additive required depends on the tank size and temperature. For example, at temperatures above 0°F, the entire contents of a 12-ounce bottle are added to 40 gallons of diesel fuel. However, when temperatures drop below 0°F, the same amount of additive is recommended for 20 gallons of diesel fuel.
Diesel Fuel Supplement +Cetane Boost is a reliable product for improving diesel engine performance and ensuring trouble-free operation during the winter. It is safe and effective for use in all diesel engines and is endorsed by Cummins, a well-known dealer.
While Diesel Fuel Supplement +Cetane Boost is specifically designed for winter use, Power Service offers a range of diesel additives for year-round engine performance improvement. Diesel Kleen +Cetane Boost, for instance, is recommended for peak performance in non-winter months. It helps clean injectors, boost power, lubricate pumps, and restore lost power and fuel economy.
In summary, Diesel Fuel Supplement +Cetane Boost is a valuable winter additive for diesel engines, ensuring smooth operation and protecting against the challenges posed by low temperatures. For year-round maintenance, it can be used in conjunction with other Power Service additives, such as Diesel Kleen +Cetane Boost.
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Diesel Kleen +Cetane Boost is for non-winter months
Diesel Kleen +Cetane Boost is a total injector cleaner and performance improver that can be used year-round. It is designed for non-winter months when temperatures are above 30°F.
The product is loaded with cetane, detergent, and lubricity improver, which work together to provide peak diesel performance. Diesel Kleen +Cetane Boost can be used to clean injectors, boost power, lubricate pumps and injectors, and restore lost power and fuel economy.
The Truck and Engine Manufacturers Association (EMA) believes that cetane is "a year-round concern". They state that diesel engines generally operate better year-round on fuels with Cetane Numbers above 50. Diesel Kleen +Cetane Boost adds another 6 points of cetane to #2 Diesel, which typically has a cetane number of around 48-50.
Diesel Kleen +Cetane Boost is available in various sizes, including 12-ounce, 16-ounce, 26-ounce, and bulk options. It is recommended to use the product calculator to determine the appropriate amount of additive for your specific tank size.
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Additives can improve engine performance
Diesel fuel supplements can be used year-round to improve engine performance. Additives are unique substances added to diesel fuel to enhance performance, improve fuel efficiency, and extend engine life.
There are several types of additives available, each serving a unique purpose. Detergents, for example, are additives that clean engine parts and remove carbon deposits, optimizing engine performance and reducing emissions. Biocides, on the other hand, are used to kill microorganisms that can grow in diesel fuel, such as bacteria, algae, and fungi, which can clog filters and damage fuel systems.
Cetane boosters are another type of additive that improves diesel fuel's ability to burn by raising its cetane number, resulting in smoother engine operation and better fuel economy. They are especially beneficial during cold starts, ensuring the fuel ignites more quickly and burns efficiently, reducing black smoke emissions.
Lubricity enhancers are additives that improve lubrication, reducing engine wear and extending the engine's lifespan. Anti-gel additives are also useful during cold weather, as they lower the pour point of diesel fuel, preventing it from gelling and clogging the engine.
By using the right additives, you can improve your engine's performance, increase fuel efficiency, and extend the life of your vehicle.
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Additives can prevent fuel gelling
Diesel fuel is prone to "gelling", a term used to describe the crystallization of waxes in diesel fuel in extremely cold weather. This gelling can prevent fuel flow to the engine or clog fuel lines and filters, making it impossible for diesel engines to run.
To prevent this, you can use anti-gelling additives. These additives can lower the pour and gel points, so the engine performs better at lower temperatures. That means when it's freezing outside, you can still get your vehicle started. Depending on your location, your fuel provider may have already added the treatment to the fuel. In other places that don’t experience such cold winters, you’d need to purchase the additive and pour it into your tank.
The amount of anti-gelling additive you should add to your fuel depends on the temperature. The lower the temperature, the more anti-gelling additive you should add to your fuel. Make sure you follow the directions on the bottle you purchase. There are also products available that can help if your fuel has already gelled and your fuel filter is frozen.
Fuel heaters are another way to keep diesel fuel from gelling. These constantly monitor the temperature of the fuel and make heating element temperature adjustments accordingly.
Some people use anti-gelling additives all year round, while others only use them when it's cold.
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Additives can protect against fuel-filter icing
Diesel fuel additives are designed to improve engine performance and provide trouble-free operation during winter. They are particularly useful for preventing fuel gelling and protecting against fuel-filter icing.
Fuel-filter icing can occur when moisture in the fuel freezes, causing ice crystals to form within the aircraft's fuel system. This can lead to obstructed fuel lines and filters, resulting in serious mechanical problems and even engine failure.
Anti-icing fuel additives are designed to lower the freezing point of water, allowing it to withstand cooler temperatures without turning into ice. These additives typically contain surfactants and dispersants that cause moisture droplets to break down and disperse within the fuel, further minimizing the risk of ice formation.
For diesel engines, additives such as Diesel Fuel Supplement +Cetane Boost by Power Service are recommended for use during the cold winter months to prevent fuel gelling and keep fuel filters from plugging with ice and wax. The Truck and Engine Manufacturers Association (EMA) recommends the use of diesel additives with Cetane Numbers above 50 for year-round performance improvement.
While some sources suggest using different additives during warmer months for optimal performance, the use of anti-icing additives can be beneficial all year round to prevent any potential issues caused by fuel-filter icing.
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Frequently asked questions
Yes, diesel fuel supplements can be used year-round for engine performance improvement, trouble-free winter operation, and proper fuel tank hygiene.
Diesel fuel supplements are used to prevent fuel gelling and protect against fuel-filter icing in diesel fuel engines.
Using a diesel fuel additive is as simple as pouring it into your tank. The general recommendation is 1 ounce of additive per 10 gallons of diesel.
Diesel Extreme is a popular choice as it adds seven points to diesel's cetane score, improving combustion performance, and cleaning and lubricating injectors. Another option is Peak's Blue Agri-Clean, which is a fuel stabilizer that also boosts cetane by five points.











































