Hot Shot's Secret Diesel Fuel System Cleaner 16 oz — concentrated deposit remover & water dispersant

Hot Shot's Secret Diesel Extreme is a concentrated 16 oz diesel fuel system cleaner that removes deposits, disperses water, and boosts combustion quality for smoother starts and better acceleration.

This advanced additive is formulated for modern diesel engines to address carbon buildup, fuel-related sludge, and microscopic water contamination while supporting improved cetane characteristics. Packaged in a convenient 16-ounce bottle, the product is designed to treat multiple tanks and provide ongoing fuel-system protection when used per label directions. Made in the USA, Diesel Extreme uses proven chemistries, including cumene, to condition fuel, restore injector and valve performance, and promote more efficient combustion without engine disassembly.

How does Diesel Extreme clean my entire fuel system?

Diesel Extreme works as a multi-functional cleaner that circulates through fuel lines, injectors, and combustion chambers to dissolve and carry away varnish and carbon deposits. It also emulsifies microscopic water and helps prevent the formation of sludge that can impair flow and atomization.

• High-performance detergents target injector and valve deposits
• Cumene-enhanced formula improves fuel conditioning and combustion
• Emulsifies water to reduce corrosion and microbial growth risks
• Treats fuel tanks, filters, pumps, and injectors when used regularly

What immediate drivability improvements can I expect?

After treatment, many users notice easier cold starts, smoother idling, and more responsive acceleration as restricted injectors and valves regain proper spray patterns. Reduced deposits lead to more complete combustion, which helps the engine run more consistently under load.

• Easier engine starts in cool conditions
• Improved throttle response and acceleration
• Smoother idle and reduced hesitation during acceleration
• Potential for lower visible smoke and cleaner exhaust behavior

How do I use the 16 oz bottle, and how many tanks does it treat?

The bottle is concentrated: add the contents directly to the diesel fuel tank per the product label instructions, typically treating multiple tanks depending on tank size and recommended dose. Regular maintenance use keeps deposits from recurring and preserves injector performance over time.

• One 16 oz bottle treats several full tanks at the recommended dose
• Pour directly into the fuel tank before refueling for best mixing
• Use as a preventative each service interval or when symptoms appear
• Follow label dosing for light equipment, passenger diesels, or heavy-duty trucks

Is Diesel Extreme compatible with my diesel engine and emissions systems?

The formula is intended for use in most modern diesel engines, including those with common-rail fuel systems and aftertreatment devices. It is designed to work without altering manufacturer-specified fuels or requiring engine modifications, but always check your vehicle manual and product directions for compatibility notes.

• Safe for use with standard diesel fuels and biodiesel blends within label limits
• Formulated to be compatible with fuel system materials and seals
• No requirement to remove or modify emissions control devices
• Review vehicle maker guidance when in doubt

Who this is for: Diesel Extreme is suited for diesel vehicle and equipment owners who want an easy, preventive maintenance solution—fleet managers, pickup and SUV drivers, agricultural and construction equipment operators, and anyone seeking to maintain injector performance and smoother combustion. If you want a compact, made-in-USA cleaner that treats multiple tanks and targets deposits, water, and sludge in one treatment, this product offers a concentrated option to keep diesel systems running cleaner and more efficiently.