Hot Shot's Secret LX4 Fuel Additive Lubricity Extreme — 1 Gallon treatment, restores lubricity & protects pumps and injectors

Hot Shot's Secret LX4 Lubricity Extreme is a concentrated fuel additive designed to restore and boost lubricity in gasoline and diesel, protecting fuel pumps, injectors, and the upper cylinder.

This one-gallon treatment is made to counteract the low-lubricity effects of modern fuels, including ultra-low sulfur diesel and ethanol blends. LX4 is free of alcohols and harsh solvents and works as a preventive and restorative supplement to regular fuel care. It’s suitable for a wide range of engines and mixes safely with common stabilizers and system cleaners to help maintain smooth operation and extend component life.

How does LX4 protect fuel pumps and injectors?

LX4 increases fuel lubricity so metal components that rely on fuel for lubrication experience less wear. That reduced friction helps avoid premature failure of high-pressure pumps and delicate injector tips.

• Reduces abrasive wear on moving fuel components
• Restores lubricant properties lost to low-sulfur and high-ethanol fuels
• Helps maintain consistent injector spray patterns and pump operation

Will this work in both gasoline and diesel vehicles?

Yes — the formula is compatible with gasoline, ethanol blends, and diesel fuels, making it a versatile choice for mixed fleets or households with different vehicle types. It’s engineered to be safe across typical engine platforms when dosed correctly.

• Formulated for gasoline, ethanol blends, and diesel
• Can be combined with fuel stabilizers and system treatments
• Suitable for passenger cars, trucks, and many off-road engines

Is LX4 safe to use with fuel system treatments and stabilizers?

Yes — LX4 is designed to be compatible with fuel stabilizers and other fuel system additives. It avoids harsh solvents and alcohols so it won’t counteract common chemical treatments and can be part of a broader maintenance routine.

• No alcohols or aggressive solvents that interfere with other additives
• Mixes with stabilizers to support storage and long-term protection
• Helps maintain performance during seasonal storage or variable fuel quality

Who this is for: LX4 is aimed at drivers, mechanics, and fleet managers who want to reduce wear on fuel pumps and injectors caused by modern low-lubricity fuels. It’s particularly useful for vehicles that experience frequent cold starts, heavy loads, or extended storage, and for anyone seeking a compatible additive that plays well with stabilizers and cleaners. Use as directed to return lubricity to fuels and help protect critical fuel-system components over the vehicle’s life.