10 Best Fuel Injector Cleaner Additive of December 2025

• Add to fuel to help clean fuel injectors and restore injector spray patterns
• Adds lubricity to upper cylinders
• Helps recover lost MPG and reduce exhaust emissions
• Concentrated formula treats up to 25 gallons
• Safe for all types of gasoline fuel injection engines

Sea Foam

• DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning & preventing corrosion in fuel systems
• PERFORM & PROTECT: Fuel additive cleans injectors, carburetors, valve & combustion chamber deposits with a powerful, concentrated blend of high-temp and low-temp detergents
• EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation
• EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment
• WHY RED LINE: Established in 1979, Red Line products perform & protect better than any on the market no compromises

Red Line

• Package Dimensions: 11.6 H x 4.0 L x 4.2 W (centimeters)
• Fit type: Universal
• Country of Origin : United States
• Package Weight: 0.12 kilograms

Red Line

• The product is 5, 25 ounce, fuel treatment, for gasoline LPG and diesel fuel, contains no alcohol/solvents/kerosene/diesel fuel, lubricates rings and cylinder walls for longer life, increases mileage, cleans and lubricates valves, pumps, carburetors, and injectors
• Easy and simple use kit
• The product is manufactured in China
• A great tune-up in a bottle
• Cleans and lubricates the fuel system
• Neutralizes low sulfur fuel problems
• Increases power and miles per gallon by burning excess exhaust emissions
• Increases the life of pumps and injectors

Lucas Oil

• Fights ethanol and water corrosion and prevents future carbon build-up
• Conditions fuel to help extend the life of key engine parts
• PEA (polyether amine) effectively removes carbon deposits
• Provides maximized performance and fuel economy in one fill-up
• Will not void OEM/manufacturer's warranty

Gumout

• Lucas fuel treatment is formulated for both gasoline and diesel engines, carbureted or fuel injected
• Use it to pass smog tests. Finally, it totally neutralizes the harmful effects of low sulfur diesel fuel.
• Tan color
• 1 Quart

LUCAS

• Restores fuel economy
• Stabilizes ethanol
• Maximizes horsepower
• Improves responsiveness
• For use in both gasoline and diesel engines
• Fit type: Universal Fit

Royal Purple

• Fit Type: Vehicle Specific
• Package Dimensions: 7.23 L x 4.93 H x 5.75 W (inches)
• Package Weight : 8 pounds
• Country of Origin : United States

LUCAS

• Greatly reduces harmful nitrous oxide emissions
• Removes carbon deposits
• Totally eliminates knocking and pinging
• Raises mileage and performance
• Flash point: 46.11 degrees_celsius

Lucas Oil

• Unclogs dirty fuel injectors to restore performance
• Helps restore lost power and acceleration
• Removes harmful deposits
• Saves gas
• Compatible with cap-less gas systems

STP