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Best Carburetor Cleaner Fuel Additive (2024 Update)

Looking to give your engine a boost and improve performance? A quality carburetor cleaner and fuel additive may be just what you need. With so many options on the market, choosing the right product can be tricky. Before making a purchase, here are some key factors to consider:

Compatibility – Make sure to select a cleaner that’s compatible with your engine type. Most are designed for gasoline engines, but some are specifically formulated for diesel. Refer to your owner’s manual if unsure.

Ingredients – Look at the active ingredients like polyether amine, polyisobutylene, and polyisobutylene amine. These work to dissolve deposits, prevent buildup, stabilize fuel and improve combustion. The more cleaning agents, the better.

Deposit removal – Choose a cleaner that can tackle carbon, gum, varnish and other deposits for thorough cleaning. Look for ones that can soften and remove buildup without damaging engine parts.

Performance restore – Opt for a product that helps restore lost power and mileage. Detergents and additives that improve combustion can give your engine the boost it needs.

Ease of use – Consider an option that’s easy to pour and doesn’t require any mixing. The simpler to use, the better.

Your engine’s performance depends on a clean, well-functioning fuel system. Give it some TLC with the right carburetor cleaner and fuel additive. With a quality product, you can remove deposits, improve efficiency and keep your engine running smoothly for the long haul.

20 Best Carburetor Cleaner Fuel Additive (20 Sellers)

1. Berryman B-12 Chemtool Fuel System And Injection Cleaner – 15 Oz Can

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2. Sta-Bil Fuel System Stabilizer – 32 Fl Oz Bottle

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3. 16oz Gumout Carb & Choke Cleaner

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4. Gumout Fuel Injector And Carburetor Cleaner, 6 Oz

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Units in Package 1
Unit Size 6 fl oz
Directions Add entire bottle to nearly empty gasoline tank, then fill tank with up to 21 gallons of gasoline. For best results, do not refill tank until near empty. This product contains no alcohol and will not harm catalytic converters or oxygen sensors. Can be used with all unleaded, oxygenated and reformulated gasolines. Safe to use with other Gumout fuel additives. Works in standard, capless & obstructed fuel fillers. Pour, twist & remove. Use Every Fill Up: Treats up to 21 gallons (80 lt) of gasoline.
Warnings Danger: Combustible. Harmful or fatal if swallowed, skin and eye irritant. Vapors may cause drowsiness and dizziness. Danger: Contains petroleum distillates. Prolonged and repeated skin contact may cause drying of skin. Warning: This product contains chemical(s) known to the State of California to cause cancer. Precautionary Measures: Keep away from heat and flames. Avoid breathing of mists and vapors. Use only in well ventilated areas. Keep container closed. Avoid skin and eye contact. Do not swallow. Wash thoroughly after handling. First Aid: If swallowed, do not induce vomiting. Call physician immediately. If inhaled, breathe fresh air. For skin or eye contact, wash thoroughly with water. Keep out of reach of children. For Health Emergency: 1-877-504-9352.

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5. Blaster Gasoline Multifunction Fuel Additive 11 Oz.

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6. Chevron Techron Concentrate Plus Fuel System Cleaner – 12 Oz.

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Product Type Fuel treatment
Size 12 oz.
Product Weight 0.916 lb
Dimensions L x W x H (in.) 2.68 x 3.13 x 9.10 in

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7. Sta-Bil 22005 Carb Choke & Parts Cleaner – 12.5oz

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Theme Type Cleaning

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8. Start Your Engines Fuel System Revitalizer

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9. Stp Fuel Injector Cleaner, Super Concentrated – 5.25 Fl Oz

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Units in Package 1
Unit Size 5.25 fl oz
Directions Pour entire contents into gas tank before or after fueling. One bottle treats up to 21 gallons of gasoline.
Warnings Danger: Eye & skin irritant. Read back panel carefully. Reproductive Harm – www.P65Warnings.ca.gov. Danger: Keep out of reach of children. Harmful or fatal if swallowed. Combustible. May cause eye and skin irritation. Do not swallow. Avoid eye and skin contact. Do not breathe vapors. Use in well-ventilated areas away from heat sources, sparks and flames. First Aid: If swallowed – Do not induce vomiting. Immediately call a doctor or poison control center. Eyes – Rinse with water for 15 minutes. If irritation persists, call a doctor. Skin – Wash with soap and water. If vapors bother you – Move to fresh air. Contains: petroleum distillates.

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10. Stp Fuel Injector & Carburetor Cleaner – 12 Fl Oz

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Unit Size 12 fl oz
Directions Upon opening pour entire contents into full gas tank. Firmly place cap on empty bottle and discard in trash or recycle. For tanks up to 21 gallons. Will not harm oxygen sensors or catalytic converters. Contains no alcohol. May be used in combination with other STP Fuel additives.
Warnings Harmful or fatal if swallowed, combustible. May cause skin and eye irritation. Contains petroleum distillates. Do not swallow. Do not breathe vapors. Use in well-ventilated areas away from heat sources, sparks, or flames. Avoid eye contact and prolonged skin contact. First aid: If swallowed, do not induce vomiting. Immediately call physician or poison control center. If vapors bother you, move to fresh air. Skin, wash with soap and water. Eyes, flush with water for 15 minutes. Contact a physician if irritation persists. Keep out of reach of children.

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I used this for my snowblower to clean out the injector. still working on cleaning it out.Jim
this productis definitely worth buying. i found that you can tell a difference after youve used it 3 or 4 times.Jonathan

11. Motor Medic Fuel Injector & Carburetor Cleaner – 12 Fl Oz

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Units in Package 1
Unit Size 12 fl oz
Directions Treats up to 15 gallons of gasoline. For best results, add entire bottle contents to near-empty tank and refuel; then do not refuel again until near empty. For initial treatment, use two containers of Motor Medic Fuel Injector & Carburetor Cleaner. Avoid contact with painted surfaces. In case of paint contact wash off with water immediately.
Ingredients Contains (CAS No.): Petroleum Distillates (68476-34-6) and Polyetheramine Fuel Detergent (Proprietary).
Warnings Danger: Harmful or fatal if swallowed. Eye & skin irritant. Combustible. Read precautions on back panel. Vapor may be harmful. Eye and skin irritant. Combustible. Keep away from heat, sparks, or open flame. Use with adequate ventilation. First Aid: Eye Contact: Flush with water for 15 minutes while lifting eyelids and get prompt medical attention. Skin Contact: Wash with soap and water promptly. If irritation develops, get prompt medical attention. Ingestion: Do not induce vomiting. Call Poison Control Center, physician, or hospital emergency room immediately. This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm. Disposal: Dispose of in accordance with all local, state, and federal laws and regulations. Keep away from children and animals.

12. Vp Racing Octanium Unleaded 1 Qt

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13. Sta-Bil 22207 Fuel Stabilizer, 16 Oz

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14. Royal Purple 18000 Max Atomizer Fuel Injector Cleaner – 6 Oz.

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15. Techron High Mileage Fuel System Cleaner 12oz

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Product Dimensions 3.16 x 2.66 x 8.9 inches
Country of Origin USA

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16. Rislone Fuel System Treatment, Gasoline – 16.9 Fl Oz

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Units in Package 1
Unit Size 16.9 fl oz
Directions Note: This product includes a specially designed spout which allows it to be poured into all fuel tanks, including those that use a capless (no fuel cap) system. Use anytime in a nearly full tank, or add to tank and then fill with up to 22 gallons of gas. Instructions: Bend & twist spout and tear away on the perforated tab. Remove cap and foil seal. Tightly screw spout onto bottle. (picture on side) Gently tip bottle and completely insert spout into gas tank opening, allowing entire contents to empty into tank. For continued protection and cleaning, use one bottle every 5,000 miles. Results will either be immediate or noticeable within a few days of driving.
Warnings Danger: Harmful or fatal is swallowed. Vapor harmful. Skin and eye irritant. Combustible. Read back panel carefully. Keep out of the reach children. Danger: Contains petroleum distillates. Harmful or fatal if swallowed. This product contains chemicals known to the state of California to cause cancer. Avoid skin and eye contact. Do not breathe mist or vapors. Use in well ventilated area. Keep away from heat, sparks and open flames. First Aid: If swallowed, do not induce vomiting. Call physician immediately. If inhaled, move person to fresh air. In case of eye or skin contact, flush with water for 15 minutes.

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17. Star Tron Fuel Treatment, Enzyme – 8 Us Fl Oz (237 Ml)

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Units in Package 1
Unit Size 8 oz
Directions Always add Star Tron just before each fuel fill up. Remove cap and pour the prescribed amount into tank. Overdosing is not harmful. Initial dosage: Add 1 fl oz. For every 3 gallons of gasoline. Refills: Add 1 fl. oz. For every 6 gallons of gasoline.
Warnings Danger. Harmful or fatal if swallowed. See back for precautions and first aid. Danger Harmful or fatal if swallowed. Contains Petroleum distillates, hydrotreated light. Do not swallow. Do not breathe vapors. Use in a well ventilated area. Avoid skin contact. Keep away from heat, open flame and sparks. Keep out of reach of children. First Aid: it swallowed or inhaled, call physician, emergency room or Poison Control center immediately for advice about whether or not to induce vomiting. If product comes in contact with skin or eyes, flush with clean water for at least 15 minutes. If irritation persists, seek medical attention.

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18. Sta-Bil Fuel Stabilizer – 1 Gal Jug

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19. Chevron 65740 Techron Concentrate Plus Fuel System Cleaner – 20 Oz.

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Product Type Fuel treatment
Size 20 oz.
Product Weight 1.5 lb
Dimensions L x W x H (in.) 3.16 x 3.61 x 9.30 in

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20. 6-Ounce Gumout Fuel Injector /carburetor Cleaner

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Form Liquid
Odor Scent Hydrocarbon
Specific Gravity 0.81
Flash Point 125.1 deg F

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Saved a lot of time and money keeping old carbs clean and functioning. Best injector cleaner too!John

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