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Best Diesel Additives

From leading brands and best sellers available on the web.
#1

Winner

Archoil AR6500 Diesel Treatment (40

Archoil

Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles

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#2
Hot Shot's Secret Everyday Diesel T

Hot Shot's Secret

10%OFF

Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS)

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#3
SeaFoam SF-16 Motor Treatment 16 oz

Sea Foam

SeaFoam SF-16 Motor Treatment 16 oz. Can (3)

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#4
Hot Shot's Secret Diesel Extreme, 1

Hot Shot's Secret

21%OFF

Hot Shot's Secret Diesel Extreme, 1 Qt (Packaging May Vary) (P040432Z)

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#5
Power Service Diesel Kleen+Cetane B

Power Service

Power Service Diesel Kleen+Cetane Boost 12 oz., Pack of 9

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#6
Sea Foam SF128 Motor Treatment, 1 G

Sea Foam

35%OFF

Sea Foam SF128 Motor Treatment, 1 Gallon

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#7
Hot Shot's Secret LX4 Lubricity Ext

Hot Shot's Secret

21%OFF

Hot Shot's Secret LX4 Lubricity Extreme 1 Gallon Bottle

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#8
Hot Shot's Secret Original Stiction

Hot Shot's Secret

Hot Shot's Secret Original Stiction Eliminator 32 Fluid Ounce Bottle

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#9
Hot Shot's Secret SSFP Signature Se

Hot Shot's Secret

Hot Shot's Secret SSFP Signature Series Fuel Pack 32 Ounce 2 Pack

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#10
Stanadyne Performance Formula Diese

Stanadyne

9%OFF

Stanadyne Performance Formula Diesel Fuel Additive - 16 Oz. Case of 12

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Buying Guide for the Best Diesel Additives

Choosing the right diesel additive can significantly improve the performance and longevity of your diesel engine. Diesel additives are chemical compounds that you add to your fuel to enhance its properties. They can help with cleaning the engine, improving fuel efficiency, and reducing emissions. When selecting a diesel additive, it's important to understand the different types and their specific benefits to ensure you pick the one that best suits your needs.
Cetane BoostersCetane boosters are additives that increase the cetane number of diesel fuel. The cetane number is a measure of the fuel's ignition quality; higher cetane numbers mean the fuel ignites more easily and burns more completely. This can lead to smoother engine operation, reduced noise, and improved cold starting. If you often drive in cold weather or have an older diesel engine, a cetane booster can be particularly beneficial.
Fuel StabilizersFuel stabilizers are additives that help prevent the degradation of diesel fuel over time. Diesel can degrade and form sludge or varnish, which can clog fuel filters and injectors. Stabilizers keep the fuel fresh and prevent these issues, making them ideal for vehicles that are not used frequently or are stored for long periods. If you have a seasonal vehicle or equipment, using a fuel stabilizer can help maintain fuel quality.
Injector CleanersInjector cleaners are additives designed to clean the fuel injectors and other parts of the fuel system. Over time, deposits can build up in the injectors, leading to poor fuel atomization and reduced engine performance. Injector cleaners help remove these deposits, improving fuel efficiency and engine power. If you notice a drop in performance or fuel economy, an injector cleaner might be the right choice.
Anti-Gel AdditivesAnti-gel additives prevent diesel fuel from gelling in cold temperatures. Diesel fuel can thicken and gel in cold weather, which can clog fuel lines and filters, preventing the engine from starting. Anti-gel additives lower the fuel's pour point, keeping it fluid in cold conditions. If you live in or travel to areas with harsh winters, using an anti-gel additive can ensure your engine starts and runs smoothly.
Lubricity ImproversLubricity improvers are additives that enhance the lubricating properties of diesel fuel. Modern ultra-low sulfur diesel (ULSD) has reduced natural lubricity, which can lead to increased wear on fuel system components. Lubricity improvers help protect these components by reducing friction and wear. If you use ULSD or have an older engine, a lubricity improver can help extend the life of your fuel system.
Water DispersantsWater dispersants are additives that help remove water from diesel fuel. Water can enter the fuel system through condensation or contamination and can cause corrosion, microbial growth, and fuel filter plugging. Water dispersants break down water into small droplets that can be safely burned off during combustion. If you operate in humid environments or have experienced water contamination, a water dispersant can help protect your engine.