10 Best Gas Additives

After analyzing 789 products, scanning 2465 reviews, spending more than 36 hours of research and speaking with our test users, we think the Chevron Techron Concentrate Plus Fuel System Cleaner is the one of the Best Gas Additive on the market.

# Image Name Brand Price
1
⭐Best Choice
Chevron Techron Concentrate Plus Fuel System Cleaner
Chevron Techron Concentrate Plus Fuel System Cleaner - 20 oz. Check price Chevron $$$$$ Check price
2 Star Tron Enzyme Fuel Treatment Star Tron Enzyme Fuel Treatment - Concentrated Gas Formula 8 oz - Treats 128 Gallons Check price Star Brite $$$$$ Check price
3
👑Premium Pick
LUCAS LUC10013 Fuel Treatment
LUCAS LUC10013 Fuel Treatment, 1. gallons Check price LUCAS $$$$$ Check price
4 STA-BIL 22207 16oz (Pack of 1) Gold Eagle 22207/1116 16 STA-BIL 22207 16oz (Pack of 1) Gold Eagle 22207/1116 16 Oz Original Concentrated Fuel Stabilizer Check price STA-BIL $$$$$ Check price
5
💲Best value for the money
Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv
Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv SF-16 Seafoam Liquid 16 Fl Oz Check price Sea Foam $$$$$ Check price
6 Techron Concentrate Plus Fuel System Cleaner Techron Concentrate Plus Fuel System Cleaner, 32 oz Check price TECHRON $$$$$ Check price
7 Star Tron Enzyme Fuel Treatment Star Tron Enzyme Fuel Treatment - Regular Gas Formula 8 oz - Treats 48 Gallons Check price Star Brite $$$$$ Check price
8 Sea Foam SF-16-2PK Motor Treatment Multi-Use Sea Foam SF-16-2PK Motor Treatment Multi-Use, 16 Ounce, Pack of 2, 16. Fluid_Ounces Check price Sea Foam $$$$$ Check price
9 Gumout 510013 High Mileage Fuel Injector Cleaner Gumout 510013 High Mileage Fuel Injector Cleaner, 6 oz. (Pack of 6) Check price Gumout $$$$$ Check price
10 STA-BIL 22275 32 Ounces Ethanol Treatment STA-BIL 22275 32 Ounces Ethanol Treatment Check price STA-BIL $$$$$ Check price

Chevron Techron Concentrate Plus Fuel System Cleaner – Best Overall Gas Additive

Chevron Techron Concentrate Plus Fuel System Cleaner
  • Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
  • Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
  • Reduces: rough idle, engine surge, hesitation, and spark plus fouling
  • Improves: cold start performance, and fuel stability for up to one year
  • Automobiles and trucks use every 3,000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)

Star Tron Enzyme Fuel Treatment

Star Tron Enzyme Fuel Treatment
  • Cures and prevents ethanol fuel problems; helps prevent phase separation
  • For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel
  • Makes engines start easily and run smoothly; improves fuel economy and reduces emissions
  • Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions
  • Concentrated formula #930XX is economical to use in large and small applications; safe for use in all engines (including 2-cycle pre-mix)

LUCAS LUC10013 Fuel Treatment – Premium Pick

LUCAS LUC10013 Fuel Treatment
  • Cleans and lubricates the fuel system. Neutralizes low sulfur fuel problems
  • Increases power and miles per gallon by burning excess exhaust emissions
  • Made in USA
  • Increases the life of pumps and injectors

STA-BIL 22207 16oz (Pack of 1) Gold Eagle 22207/1116 16

STA-BIL 22207 16oz (Pack of 1) Gold Eagle 22207/1116 16
  • Keeps fuel fresh for up to 24 months during storage
  • Eliminates need to drain fuel prior to storage
  • Ensures quick, easy starts after storage
  • Effective in all gasoline, including ethanol blends
  • For all gasoline engines, including 2-cycle

Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv – Best Budget Gas Additive

Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv
  • Cleans injectors, carb jets and passageways
  • Cleans and lubricates intake valves, pistons and cylinders
  • Dissolves and cleans fuel residue in fuel systems
  • Dissolves oil deposits in crankcase
  • Clean timing chain tensioners and VVT actuators, quiet noisy lifters
  • 100 percent pure petroleum
  • EPA registered product
  • Liquefies gum and varnish deposits or internal engine contaminants
  • Special Shipping Information: This item cannot be returned and has additional shipping restrictions
  • Special Shipping Information: This item cannot be returned and has additional shipping restrictions

Techron Concentrate Plus Fuel System Cleaner

Techron Concentrate Plus Fuel System Cleaner
  • Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
  • Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
  • Reduces: rough idle, engine surge, hesitation, and spark plus fouling
  • Improves: cold start performance, and fuel stability for up to one year
  • Automobiles and trucks use every 3, 000 miles or at your next oil change. All other gasoline engines use as needed (motorcycles, dirt bikes, boats, ATVs, RVs, water craft, lawn care, etc.)

Star Tron Enzyme Fuel Treatment

Star Tron Enzyme Fuel Treatment
  • Cures and prevents ethanol fuel problems
  • Helps prevent phase separation
  • Makes engines start easily, run smooth
  • Stabilizes gasoline for up to 2 years
  • This item is not for sale in Catalina Island

Sea Foam SF-16-2PK Motor Treatment Multi-Use

Sea Foam SF-16-2PK Motor Treatment Multi-Use
  • Dissolves and clean fuel deposits and sticky residues from gas and diesel fuel injectors, carburetors, and combustion chambers
  • Stabilizes stored fuel for up to two year
  • Does NOT have harsh detergent or abrasive chemicals that can harm your engine

Gumout 510013 High Mileage Fuel Injector Cleaner

Gumout 510013 High Mileage Fuel Injector Cleaner
  • Specially formulated to remove carbon deposits from engines with over 75, 000 miles
  • Cleans fuel injectors, intake valves, and ports to restore performance and fuel economy
  • Prevents future carbon build-up and reduces emissions
  • Oxygen sensor safe and safe for use in turbocharged and supercharged vehicles
  • Will not void OEM/manufacturer's

STA-BIL 22275 32 Ounces Ethanol Treatment

STA-BIL 22275 32 Ounces Ethanol Treatment
  • America's #1 Ethanol Treatment - Helps prevent Ethanol fuel related damage in vehicles and small engines
  • Prevents corrosion caused by ethanol blended fuels
  • Increases engine power and efficiency
  • Effective in ethanol and non-ethanol blended fuels
  • Keeps fuel fresh for up to 12 months
  • Made in the U.S.A.

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