Top Fuel Additives for Engine Performance

The best Fuel Additives includes STA-BIL Fuel Stabilizer [32 oz], Lucas Oil Fuel Treatment [1 Gallon], STA-BIL Fast Fix Small Engine Treatment (8oz) and many others as mentioned below.

1

STA-BIL Fuel Stabilizer [32 oz]

  • Protects fuel systems from corrosion and deposits.
  • Keeps fuel fresh for up to 24 months.
  • Treats up to 80 gallons of fuel.
  • Compatible with 2-cycle and 4-cycle engines.
  • Prevents varnish and gum buildup in fuel.
  • Easy-to-use fuel additive for storage needs.
  • Replaces Cub Cadet part numbers 22216, 22287.
  • Average Rating out of 5:
  • Price Range: $13.31
2

Lucas Oil Fuel Treatment [1 Gallon]

  • Cleans and lubricates the fuel system.
  • Improves fuel economy effectively.
  • Reduces harmful exhaust emissions.
  • Increases power and acceleration.
  • Neutralizes low sulfur fuel issues.
  • Prevents rust and corrosion.
  • Extends engine and fuel system life.
  • Average Rating out of 5:
  • Price Range: $29.69
  • Color: clear yellow
  • Material: Blend
3

STA-BIL Fast Fix Small Engine Treatment (8oz)

  • Fixes rough running small engines effortlessly.
  • Cleans carburetors and fuel injectors.
  • Eliminates water from the fuel system.
  • Treats up to 20 gallons of fuel.
  • Compatible with 2-cycle and 4-cycle engines.
  • Easy-to-use fuel additive for various equipment.
  • Effective against ethanol blended gasoline issues.
  • Average Rating out of 5:
  • Price Range: $9.99
4

STA-BIL 360 Marine Fuel Stabilizer [8 fl. oz.]

  • Cleans fuel system using advanced PEA additives.
  • Prevents corrosion in fuel system components.
  • Optimizes performance for better gas mileage.
  • Treats up to 80 gallons of fuel.
  • Easy to use; add prior to fueling.
  • Ensures year-round protection for watercraft.
  • Improves engine power and efficiency.
  • Average Rating out of 5:
  • Price Range: $4.79
  • Color: Black
  • Material: Plastic
5

STAR BRITE Star Tron Enzyme Fuel Treatment [32 Fl. Oz.]

  • Works in all engines and fuels.
  • Solves ethanol-related performance issues.
  • Stabilizes fuel for up to 2 years.
  • Improves fuel economy by removing deposits.
  • Prevents harmful water buildup in fuel.
  • Reduces smoke and harmful emissions.
  • Easy to mix with other fuel additives.
  • Average Rating out of 5:
  • Price Range: $28.00
6

Star Tron Enzyme Fuel Treatment [16 Fl Oz]

  • Enhances engine performance with advanced enzyme technology.
  • Prevents and cures ethanol-related engine issues.
  • Improves fuel economy by cleaning fuel systems.
  • Compatible with all engines and fuel types.
  • Prevents water build-up in fuel systems.
  • Stabilizes fuel for up to 2 years.
  • Reduces emissions and saves money on fuel.
  • Average Rating out of 5:
  • Price Range: $9.29
  • Color: Blue
  • Material: Plastic
7

STA-BIL Fuel System Treatment [32 Fl. Oz.]

  • Cleans fuel system for optimal performance.
  • Prevents rust and corrosion in fuel components.
  • Boosts MPG for improved fuel efficiency.
  • Enhances engine power and combustion efficiency.
  • Easy to use: add to fuel tank.
  • Provides year-round protection for your equipment.
  • Stabilizes fuel for collector cars and gas cans.
  • Average Rating out of 5:
  • Price Range: $17.22
8

B3C Fuel Solutions Mechanic in A Bottle [2 Pack]

  • Enhances performance of gas and diesel engines.
  • Removes carbon deposits and varnish effectively.
  • Disperses water in fuel systems efficiently.
  • Prevents corrosion with superior protection package.
  • Compatible with carburetors and injectors.
  • Improves fuel efficiency and engine reliability.
  • Easy to use for all fuel systems.
  • Average Rating out of 5:
  • Price Range: $34.95
9

Yamaha Yamalube Ring Free Plus Additive (12oz)

  • Exclusive synthetic formula for optimal performance.
  • Specially formulated for E10 fuel compatibility.
  • Effectively removes engine deposits and buildup.
  • Enhances fuel stability and engine efficiency.
  • 12oz bottle perfect for convenient use.
  • Improves overall engine performance and longevity.
  • Designed for outboard and marine applications.
  • Average Rating out of 5:
  • Price Range: $19.50
  • Material: Plastic
10

Ethanol Shield Fuel Stabilizer (Pack of 2)

  • Reduces fuel aging significantly for optimal performance.
  • Protects engine components from corrosion and wear.
  • Enhances fuel efficiency with advanced detergent technology.
  • Inhibits phase separation in gasoline and ethanol blends.
  • Provides upper cylinder lubrication for smoother operation.
  • Compatible with 2-cycle oil for better fuel bonding.
  • Pack of 2 for convenience and cost savings.
  • Average Rating out of 5:
  • Price Range: $34.95
11

Chevron Techron Concentrate Plus [32 oz]

  • Cleans and protects entire fuel system.
  • Restores lost power and fuel economy.
  • Reduces rough idle and engine hesitation.
  • Improves cold start performance significantly.
  • Compatible with all gasoline engines.
  • Use every 3,000 miles or as needed.
  • Enhances fuel stability for up to one year.
  • Average Rating out of 5:
  • Price Range: $17.53
12

Lucas Oil High Mileage Fuel Treatment [5.25 oz]

  • Improves performance of high mileage vehicles.
  • Clears and protects fuel injectors effectively.
  • Reduces combustion chamber deposits significantly.
  • Lubricates essential fuel system components.
  • Minimizes engine knocking and hesitation.
  • Decreases oil contamination in older engines.
  • Enhances overall fuel system efficiency.
  • Average Rating out of 5:
  • Price Range: $2.64
13

STAR BRITE Star Tron Fuel Tank Cleaner [64 OZ]

  • Dissolves harmful sludge and gum buildup.
  • Rejuvenates old gasoline and diesel fuel.
  • Protects all engine types without harsh chemicals.
  • Cost-effective alternative to professional cleaning services.
  • One ounce treats up to four gallons.
  • Suitable for various vehicles and engine types.
  • Proudly made in the USA since 1973.
  • Average Rating out of 5:
  • Price Range: $30.76
  • Color: blue
  • Material: Metal
14

Rislone Hy-per Fuel System Cleaner [16.9 oz]

  • Six-in-one formula for complete fuel system cleaning.
  • Boosts octane for improved power and performance.
  • Enhances fuel economy and saves gas efficiently.
  • Cleans injectors, ensuring smoother engine operation.
  • Reduces engine noise, rough idling, and hesitation.
  • Safe for all vehicles, including new models.
  • EPA registered, exceeding compliance performance criteria.
  • Average Rating out of 5:
  • Price Range: $9.34
15

Lucas Oil Safeguard Ethanol Conditioner [16 oz]

  • Cleans injectors and combustion chambers effectively.
  • Stabilizes fuel for long-term storage.
  • Prevents varnish and gum formation.
  • Combats fuel deposits efficiently.
  • Protects engine oil from alcohol effects.
  • Compatible with ethanol and gasoline fuels.
  • Enhances engine performance and reliability.
  • Average Rating out of 5:
  • Price Range: $7.05
16

DURA LUBE Catalytic & Exhaust Cleaner [2-Pack]

  • Enhances fuel system performance and efficiency.
  • Protects catalytic converter from harmful oil poisons.
  • Reduces phosphorus and zinc retention levels.
  • Universal fit for all engine types.
  • Helps improve overall fuel economy.
  • Easy to use; add anytime to fuel system.
  • Includes two 16 fl. oz. bottles for convenience.
  • Average Rating out of 5:
  • Price Range: $35.99
17

Bar's Leaks Rear Main Seal Repair [16.9 oz]

  • Seals timing cover and rear main oil leaks.
  • Compatible with all engine oil types.
  • Easy to use; add directly to crankcase.
  • Effective within 100 miles or 2 days.
  • Specially designed for stubborn oil leaks.
  • Reduces engine wear and prolongs lifespan.
  • Prevents costly repairs and engine damage.
  • Average Rating out of 5:
  • Price Range: $7.49
18

Allstar Performance Grape Fuel Fragrance

  • Enhances fuel with a delightful grape scent.
  • Compatible with methanol, nitromethane, and gasoline.
  • Ideal for 2-cycle fuel mixtures.
  • Comes in a resealable 4 oz. bottle.
  • Treats 30-55 gallons of alcohol fuel.
  • Treats up to 20 gallons of gasoline.
  • Available in multiple fragrance options.
  • Average Rating out of 5:
  • Price Range: $14.38
19

zMAX Engine & Fuel Formula Kit [12 oz.]

  • Extends vehicle life with micro-lubrication technology.
  • Reduces carbon build-up for improved engine performance.
  • Enhances fuel efficiency for gas and diesel engines.
  • Trusted by professionals and major dealerships nationwide.
  • Easy to use during routine oil changes.
  • USA-made product with reputable craftsmanship.
  • Helps cut fuel costs and lowers emissions.
  • Average Rating out of 5:
  • Price Range: $39.99
20

TruFuel 4-Cycle Ethanol-Free Fuel (2-Pack)

  • Pre-blended fuel for 4-cycle engines.
  • Convenient 32 oz. pack of two.
  • Ethanol-free for cleaner performance.
  • Reduces smoke and plug fouling.
  • Enhances engine life and break-in.
  • Easy start-up and smoother idling.
  • Includes full synthetic oil for quality.
  • Average Rating out of 5:
  • Price Range: $19.00
21

Gasoila Water Finding Paste [2.5 oz]

  • Enhanced formula for precise water detection.
  • Instant color shift for quick results.
  • Mess-free, user-friendly application design.
  • Effective in extreme temperature conditions.
  • Versatile for various hydrocarbon-based fuels.
  • Ideal for non-ethanol fuel applications.
  • Protects engines from water contamination damage.
  • Average Rating out of 5:
  • Price Range: $7.06
  • Color: 4 positive
22

FQQF BG 44K Platinum Bottles (New)

  • Prevents engine corrosion for long-lasting protection.
  • Increases power output for enhanced vehicle performance.
  • Restores engine performance and improves drivability.
  • Reduces engine knock for smoother operation.
  • Improves fuel efficiency for cost savings.
  • Contains high-quality materials for optimal results.
  • Easy to use for quick application.
  • Average Rating out of 5:
  • Price Range: $47.52
  • Material: Metal
23

B3C Fuel Solutions Mechanic in A Bottle 4 OZ

  • Clean carburetors without removal needed.
  • Absorbs accumulated water in fuel system.
  • Revitalizes stale fuel for better performance.
  • Rejuvenates rubber and plastic components.
  • Simplifies maintenance for optimal engine function.
  • Enhances fuel efficiency and longevity.
  • Convenient 4 OZ size for easy use.
  • Average Rating out of 5:
  • Price Range: $9.60
24

Briggs & Stratton SAE 30 Engine Oil (2-Pack)

  • High-quality SAE 30 engine oil for optimal performance.
  • Includes two 18oz bottles for convenient use.
  • 3-in-1 fuel treatment enhances engine efficiency.
  • Each 2oz treatment covers up to 10 gallons.
  • Protects against wear and extends engine life.
  • Ideal for outdoor power equipment and small engines.
  • Easy to use with clear measurement markings.
  • Average Rating out of 5:
  • Price Range: $21.49
25

YAMAHA Yamalube Fuel Stabilizer & Conditioner

  • Prevents fuel oxidation and phase separation.
  • Alcohol-free formula ideal for E10 fuels.
  • Keeps fuel fresh for up to one year.
  • Protects steel and aluminum components effectively.
  • Easy usage: 1 oz per 3 gallons.
  • Run engine to circulate treated fuel.
  • Minimizes condensation in the fuel tank.
  • Average Rating out of 5:
  • Price Range: $11.00
26

Ethanol Shield Fuel Stabilizer [1 Gallon]

  • Stabilizes fuel for up to three years.
  • Prevents corrosion and engine damage.
  • Treats up to 1280 gallons of fuel.
  • Works in all 2 and 4-cycle engines.
  • Conditions rubber and plastic components.
  • Reduces water issues in fuel systems.
  • OEM tested and verified for reliability.
  • Average Rating out of 5:
  • Price Range: $72.95