Does your diesel truck feel a bit lazy when you step on the gas? Maybe your fuel mileage isn’t what it used to be. These are common signs your fuel system could use a good clean. Injectors get clogged and performance drops over time.
You’re in the right place. We’ve tested and researched the top products to solve this exact problem. This guide will cut through the confusion and show you the best diesel fuel system cleaners to restore power, improve economy, and protect your engine.
| Product Image | Product Name | Best For | Check Price |
|---|---|---|---|
 | Archoil Complete Fuel System Tre | Complete System Care | Prices |
 | Archoil AR6400-D Concentrate Fue | Strong Performance Boost | Prices |
 | Hot Shot’s Secret Everyday Diese | Regular Maintenance | Prices |
 | Hot Shot’s Secret Everyday Diese | Regular Maintenance | Prices |
 | Hot Shot’s Secret Everyday Diese | Regular Maintenance | Prices |
 | Hot Shot’s Secret Diesel Extreme | Severe Contamination | Prices |
 | Archoil AR6400-D Concentrate Fue | Strong Performance Boost | Prices |
Archoil Complete Fuel System Tre
If you’re a diesel owner who wants to protect your entire fuel system from the pump to the injectors, Archoil Complete Fuel System Tre is the perfect all-in-one solution.
Its powerful formula does more than just clean; it actively fights corrosion and lubricates vital components. This means your high-pressure fuel pump and expensive injectors last longer and perform better, saving you from costly repairs down the line. For example, it can help restore lost power and smooth out a rough idle caused by gummed-up injectors.
Beyond its cleaning power, a key advantage is its compatibility with all diesel fuels, including modern ultra-low sulfur diesel and biodiesel blends. This makes it a versatile and reliable choice for protecting your investment, whether you drive a modern pickup or a heavy-duty work truck.
Pros:
- 🟢 Comprehensive protection for the entire fuel system
- 🟢 Excellent anti-corrosion and lubricating properties
- 🟢 Compatible with all diesel types and biodiesel blends
- 🟢 Helps restore engine power and smoothness
Cons:
- 🔴 Priced higher than many basic fuel additives
- 🔴 May not be necessary for brand new vehicles
- 🔴 The bottle can be a bit tricky to pour without spilling
Archoil AR6400-D Concentrate Fue
If you’re a diesel owner dealing with rough idling, lost power, or worrying about your DPF filter, this concentrate is your perfect solution.
Its powerful formula cleans injectors and combustion chambers, which can restore your engine’s pep and smoothness. For example, if your truck feels sluggish when you step on the gas, this can help it respond more quickly.
Beyond just cleaning, it also boosts cetane by up to 7 points, leading to more complete combustion for better fuel economy and easier cold starts, making it a fantastic all-in-one treatment.
Pros:
- 🟢 Highly effective at restoring lost power and smoothing rough idle
- 🟢 Helps clean and protect expensive DPF and SCR systems
- 🟢 Boosts cetane for improved fuel economy and easier cold starts
- 🟢 Works in a single treatment, making it very convenient
Cons:
- 🔴 Priced higher than many standard off-the-shelf fuel additives
- 🔴 The small bottle requires careful measurement for larger fuel tanks
- 🔴 May not be necessary for vehicles that are regularly serviced
Hot Shot's Secret Everyday Diese
If you’re a diesel driver looking for a simple, no-fuss additive to use with every fill-up, Hot Shot’s Secret Everyday Diesel is the perfect choice for you.
Its main job is to boost your fuel’s cetane rating, which makes your engine run smoother and start easier, especially on cold mornings. Think of it like a vitamin for your diesel; it just helps everything work a little better. It also cleans injectors as you drive, preventing power-robbing deposits from building up in the first place.
Beyond the basics, it tackles water contamination, a common diesel enemy, by emulsifying small amounts of water so it can be safely burned off. This all-in-one, preventative approach makes it a strong contender for anyone wanting to protect their investment and avoid bigger problems down the road.
Pros:
- 🟢 Excellent for preventative maintenance with every tank
- 🟢 Boosts cetane for smoother operation and easier cold starts
- 🟢 Cleans injectors continuously to maintain power and efficiency
- 🟢 Helps manage water contamination in the fuel
- 🟢 Simple, one-bottle-treatment formula is easy to use
Cons:
- 🔴 Not a heavy-duty cleaner for vehicles with existing severe problems
- 🔴 The cost can add up over time compared to occasional-use products
- 🔴 Some users may not notice a dramatic difference on well-maintained vehicles
Hot Shot's Secret Everyday Diese
If you’re a diesel driver looking for a simple, no-fuss additive to use with every fill-up, Hot Shot’s Secret Everyday Diesel is the perfect choice for you.
Its main job is to boost your fuel’s cetane rating, which makes your engine run smoother and more efficiently. Think of it like giving your truck a consistent vitamin shot that helps it start easier and reduces that classic diesel rattle, especially on cold mornings.
Beyond the performance boost, it also includes a lubricity agent to protect your expensive fuel injectors and pump from wear. For a daily driver, this preventative care is a smart, low-cost way to help avoid major repair bills down the road.
Pros:
- 🟢 Easy to use with every tank for consistent protection
- 🟢 Boosts cetane for smoother engine operation and easier starts
- 🟢 Increases fuel lubricity to protect vital injection components
- 🟢 Affordable preventative maintenance
- 🟢 Works in all diesel engines, including newer models
Cons:
- 🔴 Not a heavy-duty cleaner for severely clogged systems
- 🔴 Requires consistent use for the best long-term results
- 🔴 The bottle can be a bit messy to pour without a funnel
Hot Shot's Secret Everyday Diese
If you’re a diesel driver looking for a simple, preventative maintenance solution you can use with every fill-up, Hot Shot’s Secret Everyday Diesel is the perfect choice for you.
Its main job is to boost your fuel’s cetane rating, which is like giving your engine a better grade of gasoline. This leads to a smoother, more efficient burn, so you’ll likely notice quicker starts and a bit more pep when you hit the accelerator. For daily drivers, this means consistently better performance and fuel economy over time.
Beyond the power boost, it also contains a lubricity additive that protects your expensive fuel injectors and pump from wear. Because it’s safe for daily use and works with all diesel types, including ultra-low sulfur, it’s a fantastic “set it and forget it” product for long-term engine health.
Pros:
- 🟢 Safe for continuous use with every tank of fuel
- 🟢 Boosts cetane for improved performance and fuel economy
- 🟢 Increases lubricity to protect vital fuel system components
- 🟢 Works with all diesel types, including ULSD and biodiesel blends
Cons:
- 🔴 Not a heavy-duty cleaner for severely clogged systems
- 🔴 The cost can add up over time compared to occasional-use products
- 🔴 Requires consistent use to maintain its preventative benefits
Hot Shot's Secret Diesel Extreme
If you’re a diesel owner dealing with rough idling or a noticeable drop in power, Hot Shot’s Secret Diesel Extreme is the perfect solution to get things running smoothly again.
Its powerful formula is designed to clean your entire fuel system, from the tank to the injectors. For example, it dissolves the stubborn carbon deposits that can clog injectors, which directly translates to better fuel economy and a more responsive engine when you step on the gas.
Beyond just cleaning, it also lubricates and protects your high-pressure fuel pump, a critical and expensive component. This dual-action approach of cleaning and protecting makes it a strong, preventative choice for maintaining your engine’s health long-term.
Pros:
- 🟢 Effectively restores lost power and improves throttle response
- 🟢 Cleans entire fuel system, including injectors and combustion chambers
- 🟢 Lubricates and protects vital components like the fuel pump
- 🟢 Can help improve overall fuel economy
- 🟢 One-treatment formula is simple to use
Cons:
- 🔴 Priced higher than many basic fuel additives
- 🔴 May not be necessary for vehicles that are regularly serviced
- 🔴 Strong chemical smell can be off-putting to some users
Archoil AR6400-D Concentrate Fue
If you’re a diesel owner dealing with rough idling, lost power, or worrying about your injectors, this concentrate is the deep clean your fuel system desperately needs.
Its main job is to dissolve the tough carbon deposits that clog injectors and disrupt fuel spray patterns. A cleaner spray means fuel burns more completely, which you’ll often feel as smoother acceleration and a more responsive engine right away.
Beyond just cleaning, it also tackles the water that inevitably finds its way into diesel fuel, helping to prevent corrosion and microbial growth. For a product that’s so easy to use, it delivers a powerful, professional-grade result that makes it a standout choice.
Pros:
- 🟢 Effectively restores power and smoothness by cleaning injectors
- 🟢 Fights corrosion by dispersing water in the fuel tank
- 🟢 Highly concentrated formula means a little goes a long way
- 🟢 Works with all diesel engines, including modern Tier 4 systems
Cons:
- 🔴 Higher price point per treatment compared to standard store brands
- 🔴 The concentrated nature requires careful measurement for smaller tanks
- 🔴 May not be necessary for vehicles that are consistently driven on long highway trips
Buyer’s Guide: 3 Key Factors to Consider
Cleaning Power & Additive Package
Look for cleaners that specify they target the entire fuel system, including injectors, combustion chambers, and the DPF. The best products use a high concentration of powerful detergents and additives like cetane boosters and lubricity agents to not only clean but also improve performance and protect components from future buildup.
Ease of Use & Treatment Ratio
Consider how the product is added to your fuel. Single-bottle treatments that you pour directly into the tank are the most convenient. Check the treatment ratio to ensure one bottle is sufficient for your vehicle’s fuel tank capacity, avoiding the need for partial bottles or complex measurements at the pump.
Compatibility & Certifications
Always verify that the cleaner is safe for use with modern diesel engines, particularly those with Diesel Particulate Filters (DPF) and sensitive emission control systems. Look for mentions of compatibility with ultra-low sulfur diesel (ULSD) and any relevant OEM approvals to ensure you won’t accidentally void your warranty or damage expensive components.
Frequently Asked Questions
Q1: How often should I use a diesel fuel system cleaner?
A1: For maintenance, using a quality cleaner every 3,000 to 5,000 miles is a good practice. If you’re trying to resolve a specific issue like rough idling or loss of power, a single, more concentrated treatment is recommended.
Q2: Can a fuel cleaner fix a clogged diesel particulate filter (DPF)?
A2: While some cleaners are designed to help reduce soot and prevent DPF clogs, they cannot clear a severely or completely clogged filter. For a blocked DPF, professional cleaning or replacement is typically required.
Q3: Is it safe to use a diesel cleaner in a new truck?
A3: Yes, using a cleaner in a new diesel engine is safe and can be beneficial. It helps prevent carbon deposits from forming in the first place, keeping injectors clean and maintaining optimal performance and fuel economy from the start.
Q4: Will a fuel system cleaner improve my gas mileage?
A4: Yes, a cleaner can restore fuel economy. Dirty injectors spray fuel inefficiently. By cleaning them, the fuel atomizes better, leading to more complete combustion and often a noticeable improvement in miles per gallon.
Q5: What’s the difference between a fuel system cleaner and a cetane booster?
A5: A fuel system cleaner’s primary job is to remove deposits from injectors and other components. A cetane booster is designed to increase the cetane rating of the diesel fuel, which improves combustion efficiency and can reduce engine noise. Many top-tier cleaners include a cetane booster as part of their formula.
Final Verdict: Which One Should You Buy?
For most diesel owners seeking a reliable, all-in-one solution, Hot Shot’s Secret Diesel Extreme remains the top choice for 2025. Its proven formula effectively tackles tough deposits while boosting cetane and lubricity, making it ideal for both preventative maintenance and performance restoration. If you drive a modern truck with a DPF and want the ultimate in convenience and cleaning power, this product delivers the confidence and results you need.
Pros:
- 🟢 Powerful cleaning agents remove stubborn injector deposits
- 🟢 Boosts cetane for improved combustion and smoother operation
- 🟢 Increases fuel lubricity to protect vital pump and injector components
- 🟢 Safe for use in all diesel engines, including those with DPFs
- 🟢 Convenient one-bottle treatment for a full tank of fuel
Cons:
- 🔴 Higher price point per treatment compared to basic alternatives
- 🔴 Strong chemical odor during application
- 🔴 May not resolve issues caused by severely worn mechanical parts