Which Fuel Additive Should I Use for Gas or Diesel?

A simple guide to choosing between Muscle Fuel Treatment FT-10™, Diesel High Performance DHP-10™, and BlueIce IC-10™

Fuel-system problems and maintenance needs are not all the same. One engine may simply need continual fuel-system cleaning, while another might need more diesel-fuel lubricity or periodic injector cleaning.

Muscle Products Corp. offers fuel additives for these different applications: Fuel Treatment FT-10™, Diesel High Performance DHP-10™, and BlueIce IC-10™.

Your best choice depends on the fuel, the condition of the fuel system, and what you’re trying to accomplish.

Key Takeaways

Choose Fuel Treatment FT-10™ at every fill-up for ongoing gasoline or diesel fuel-system maintenance.
Use Diesel High Performance DHP-10™ at every fill-up when you want a diesel-specific additive with more emphasis on fuel lubricity, injector and pump protection, deposit control, and cetane improvement.
Consider BlueIce IC-10™ for periodic, more concentrated cleaning of injectors, carburetors, valves, and fuel-system deposits and moisture control. Recommended for both gasoline and diesel fuel systems.

Some benefits overlap, but the products are designed for different objectives.

Quick Guide: Which Fuel Additive Is Right for the Job?

Fuel additive comparison graphic showing FT-10 for ongoing gasoline and diesel maintenance, DHP-10 for diesel-specific treatment, and IC-10 for periodic fuel-system cleaning and moisture control.

Start here:

Gasoline or Diesel + ongoing routine maintenance: Fuel Treatment FT-10™
Diesel + lubricity, pump/injector protection, or cetane priority: Diesel High Performance DHP-10™
Gasoline or Diesel + periodic concentrated cleaning of injectors, carburetors, or valves, plus moisture control: BlueIce IC-10™

Choose Fuel Treatment FT-10™ for Ongoing Fuel-System Maintenance

Fuel Treatment FT-10™ is the multi-purpose fuel additive in the group. It can be used in gasoline and diesel engines and is formulated for continual fuel-system cleaning, protection, and moisture control while you drive.

Unlike a periodic cleaner used only as needed, FT-10 is designed to become part of your normal fueling routine. It’s added to the fuel at each fill-up.

FT-10 is the choice when your objective is to:

Maintain fuel-system cleanliness during normal operation
Help control moisture in gasoline or diesel fuel
Help protect the fuel system
Maintain fuel flow and engine performance
Provide ongoing treatment rather than wait until a concentrated cleaning is necessary

FT-10 also has benefits in applications beyond your vehicle, such as fuel oil furnaces and bulk fuel storage tanks.

When FT-10 Makes the Most Sense

Think of FT-10 primarily as ongoing maintenance. If the fuel system is already operating normally and you want a product designed for regular use and continual protection, FT-10 is your starting point.

Choose Diesel High Performance DHP-10™ for Diesel-Specific Fuel Needs

Both FT-10 and Diesel High Performance DHP-10™ can be used in diesel fuel, so the natural question is: Which one should you use?

DHP-10 is a specialized diesel product. It is formulated specifically for #1 diesel, #2 diesel, and ultra-low sulfur diesel (ULSD) fuels. Its benefits place additional emphasis on diesel fuel lubricity, cetane improvement, injector cleanliness, fuel-pump and injector protection, and deposit control.

DHP-10 makes sense when your priorities include:

Improving diesel fuel lubricity
Protecting fuel pumps and injectors from wear
Increasing cetane
Helping control injector deposit formation
Maintaining injector cleanliness
Improving diesel fuel quality
Supporting modern common-rail diesel systems as well as older diesel injection systems

Independent laboratory testing showed a 3–6% increase in cetane value under ASTM D-613 testing (individual results may vary depending on fuel quality). Cetane affects how readily diesel fuel ignites, while lubricity affects how well the fuel protects pumps and injectors from wear.

Heavy-duty diesel trucks representing fleet and commercial diesel applications.

FT-10 or DHP-10 for a Diesel Engine?

There is some overlap between the two products, but they shouldn’t be viewed as interchangeable.

For general, ongoing fuel-system maintenance and moisture control, FT-10 remains a good choice.

When you need a diesel-specific treatment with greater emphasis on lubricity, fuel-pump and injector protection, deposit control, and cetane improvement, DHP-10 is a more specialized product.

Pick the right one based on your primary maintenance objective.

Choose BlueIce IC-10™ for Periodic Fuel-System Cleaning

BlueIce IC-10™ fills a different role. It’s a gasoline and diesel fuel additive formulated to remove gums, varnishes, carbon deposits, and corrosive buildup from fuel-system components, including injectors, carburetors, and valves. It also disperses water and provides lubrication to valves and upper cylinders.

Where FT-10 is intended for ongoing maintenance, IC-10 is more of a periodic, more concentrated cleaning treatment.

Use BlueIce IC-10™ when you want to:

Clean fuel injectors
Clean carburetors
Remove gums and varnish
Address carbon deposits
Disperse water in the fuel
Lubricate valves and upper cylinders
Give the fuel system a more concentrated cleaning

We recommend using IC-10 every 10,000 to 15,000 miles.

FT-10 vs. IC-10: What's the Difference?

Because both products clean the fuel system and address moisture, their roles can appear similar. The easiest way to distinguish them is:

Fuel Treatment FT-10™ = ongoing maintenance with every fill-up

BlueIce IC-10™ = periodic, more concentrated cleaning

FT-10 helps maintain the fuel system during regular use. IC-10 provides a more concentrated cleaning treatment when additional removal of gums, varnishes, carbon deposits, and other buildup is desired. They address different points in a fuel-system maintenance program rather than simply duplicating one another.

Vehicle being refueled with gasoline, representing regular fuel-system maintenance applications.

One Fuel Additive Isn't Necessarily “Better” Than Another

Picking the right fuel additive is less about deciding which product is strongest or best overall, but more about matching the product to your application.

A vehicle that needs routine fuel maintenance has a different need from a diesel engine where fuel lubricity is a concern. Likewise, a system needing periodic injector cleaning presents a different maintenance problem from one that simply needs continuous protection.

That’s why we offer these three fuel-system solutions instead of trying to make one product handle every job.

Final Takeaway

For an easy starting point:

For everyday gasoline or diesel fuel-system maintenance: Choose Fuel Treatment FT-10™ at every fill-up.

For diesel-specific lubricity, injector and pump protection, and cetane improvement: Use Diesel High Performance DHP-10™ every time you fill up.

For periodic fuel-system cleaning: Reach for BlueIce IC-10™.

When the application is unusual or the correct product is unclear, consider the type of fuel, the maintenance objective, and the condition of the fuel system (and fuel) before choosing a treatment.

Note on professional intake cleaning: If a gasoline engine has significant carbon or varnish buildup in the intake manifold, throttle body, valves, or combustion chamber, we also offer Muscle Throat ‘n Throttle TNT-10™. This is not a fuel additive — it’s applied by an auto technician through the engine’s vacuum system using a dedicated tool. Contact us or your service provider for details.

Frequently Asked Questions

Both products provide cleaning and moisture-control benefits, but they are intended for different maintenance strategies. Fuel Treatment FT-10™ is designed for ongoing use with regular fill-ups, while BlueIce IC-10™ is a more concentrated, periodic cleaning treatment recommended every 10,000 to 15,000 miles. Whether IC-10 is needed in addition to the regular use of FT-10 depends on the condition of the fuel, the fuel system, and the level of cleaning desired.
Either, depending on your objective. Fuel Treatment FT-10™ provides general fuel-system maintenance and moisture control. Diesel High Performance DHP-10™ is specifically formulated for diesel fuel and places more emphasis on lubricity, fuel-pump and injector protection, deposit control, and cetane improvement.
No. FT-10 is not an octane booster. Octane measures gasoline’s resistance to premature ignition or engine knock. Higher-octane fuel is important in engines designed for higher compression or other operating conditions that require greater knock resistance, but it does not automatically increase horsepower or fuel economy. Always use the octane grade recommended by the engine or vehicle manufacturer.
Increasing cetane helps diesel fuel ignite more readily after injection, reducing the delay between fuel injection and the start of combustion. Depending on the engine and the quality of the fuel, this can support easier starting, smoother and more consistent combustion, reduced diesel knock or combustion harshness, and improved cold-start performance. Independent laboratory testing of Diesel High Performance DHP-10™ showed a 3–6% increase in cetane value under ASTM D-613 testing (individual results may vary depending on fuel quality).
Diesel fuel helps lubricate fuel-system components such as high-pressure pumps and injectors. Adequate lubricity helps reduce friction and wear on these precision parts, supporting reliable operation and component life. This is especially important in modern high-pressure diesel fuel systems, where clearances are very tight and fuel-system components are costly to replace. Diesel High Performance DHP-10™ improves fuel lubricity and contains Muscle Metal Treatment MT-10® technology for additional protection.