10 Best Gas Additives 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 245 products, scanning 3525 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 $$$$$ Check price
2
👑Premium Pick
LUCAS LUC10013 Fuel Treatment
LUCAS LUC10013 Fuel Treatment, 1. gallons Check price LUCAS $$$$$ Check price
3 Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv SF-16 Seafoam Liquid 16 Fl Oz Check price Sea Foam $$$$$ Check price
4 STA-BIL 22207 16oz (Pack of 1) Gold Eagle 22207/1116 16 STA-BIL 22207 16oz (Pack of 1) Gold Eagle 22207/1116 16 Oz Original Concentrated Fuel Stabilizer Check price STA-BIL $$$$$ Check price
5
💲Best value for the money
Star Tron Enzyme Fuel Treatment
Star Tron Enzyme Fuel Treatment - Regular Gas Formula 8 oz - Treats 48 Gallons Check price Star Brite $$$$$ Check price
6 Star Tron Enzyme Fuel Treatment Star Tron Enzyme Fuel Treatment - Concentrated Gas Formula 8 oz - Treats 128 Gallons Check price Star Brite $$$$$ Check price
7 Lucas Oil LUC10020 5.25 Ounce Fuel Treatment Lucas Oil LUC10020 5.25 Ounce Fuel Treatment Check price Lucas Oil $$$$$ Check price
8 Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz. Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz. Check price LUCAS $$$$$ Check price
9 Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and Injector Additive Treatment-15 oz Bottle Check price Red Line $$$$$ Check price
10 Marvel Mystery Oil MM12R Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2) Check price Marvel Mystery Oil $$$$$ Check price

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

Sea Foam 1 Pack (16 Ounce) Extreme Marine & Rv

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

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

Star Tron Enzyme Fuel Treatment – Best Budget Gas Additive

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

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 Oil LUC10020 5.25 Ounce Fuel Treatment

Lucas Oil LUC10020 5.25 Ounce Fuel Treatment
  • The product is 5, 25 oz, 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 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz.

Lucas 10003 Upper Cylinder Lubrication & Injector Cleaner 32 oz.
  • Lucas oil, use it to pass smog tests
  • A blend of super slick oils and additives with a high detergent action that allows the engine to operate at maximum efficiency
  • Automotive oil & gas treatments

Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and

Red Line (60103) Complete SI-1 Fuel System Cleaner Gas and
  • 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 buildup 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

Marvel Mystery Oil MM12R

Marvel Mystery Oil MM12R
  • Kit Includes (2) 16oz. Bottles of Marvel Mystery Oil additive
  • Cleans and lubricates fuel injectors and carburetors
  • Reduces and prevents varnish and gum build-up
  • Prevents valve sticking and clatter
  • Prevents oil breakdown caused by extreme temperatures

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