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STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green

4.5 4.5 out of 5 stars 4,673 ratings

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Available at a lower price from other sellers that may not offer free Prime shipping.
8 Fl Oz (Pack of 1)

Purchase options and add-ons

Brand STA-BIL
Item Form Liquid
Specific Uses For Product Bottle, Engine
Item Volume 8 Fluid Ounces
Unit Count 8.0 Fl Oz

About this item

  • FIXES ROUGH RUNNING ENGINES – STA-BIL Fast Fix eats away at gum and varnish that cause rough starts and no starts in your small engine equipment. This easy-to-use fuel additive combats the effects of ethanol blended gasoline
  • ELIMINATES WATER – This fuel injector cleaner helps to remove water that may get into your fuel system. Penetrating deep into the fuel line, this simple fuel additive prevents the need to disassemble the engine. The 8 oz. bottle of this alcohol-free fuel additive treats up to 20 gallons of fuel
  • VERSATILE – Compatible with all small engines, adding STA-BIL Fast Fix to your 2-cycle or 4-cycle small engine cleans carburetors and injectors while acting as a water remover. Use this product in your lawn mower, chainsaw, trimmer, snow blower, generator, and more
  • DIRECTIONS – For rough running engines use 1 oz. of STA-BIL Fast Fix per 2.5 gallons of fuel. Fill with fresh gas. Start the engine and allow to run for 15 minutes to allow the additive to work its way through the fuel system. If the engine does not start, attempt to turn it over a few times so the additive makes its way through the fuel system and allow to sit overnight. Attempt to start again, if problems persist you may need to have it looked at by a mechanic
  • All STA-BIL branded products are good for use up to 2 years after the bottle was opened. Be sure to mark the date you opened the bottle on the back of your package!
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STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green
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Price$12.25-26% $8.60
Typical:$11.57
$9.95$7.81-49% $3.84
List:$7.48
$6.98
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to use
4.7
4.7
5.0
4.4
4.7
5.0
Value for money
4.4
4.4
5.0
4.3
4.5
4.7
Mileage
4.1
4.1
5.0
4.2
4.6
4.6
Stability
5.0
5.0
4.9
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
form
Liquid
Liquid
Spray
Aerosol
Liquid
surface suggestion
Metal
Metal
Stainless Steel
Metal
weight
0.46 pounds
4 ounces
6 ounces
12 ounces
1 pounds
volume
8 fluid ounces
4 fluid ounces
177.6 milliliters
12 fluid ounces
14 fluid ounces
16 fluid ounces

From the manufacturer

sta bil, fuel additive, fuel treatment, ethanol, fuel fix, fast fix

How to Use STA-BIL Fast Fix

fast fix sta bil fuel stabilizer ethanol treatment enzyme

sta bil fast fix ethanol carb small engine fix

fresh fuel gas small engine sta bil ethanol fuel clean fast fix stabilizer

sta bil small engine fast fix ethanol gas stabilizer

Step 1:

Use 1oz for every 2.5 gallons of fuel

Step 2:

Pour into the fuel tank

Step 3:

Top off with fresh fuel

Step 4:

Start the engine, let it run for 15 minutes

fast fix sta bil additive treatment gas fuel enzyme cleaner
STA-BIL Fast Fix STA-BIL Small Engine Pro STA-BIL Start Your Engines!
STA-BIL Fast Fix STA-BIL Small Engine Pro STA-BIL Start Your Engines!
Customer Reviews
4.5 out of 5 stars
4,673
4.7 out of 5 stars
636
4.4 out of 5 stars
879
Fuel System Cleaner
Oil Lubricant
Corrects Ethanol Issues
Protects Against Ethanol Issues
Fixes Poor Running Engines
Fixes Non-Running Engines
Able to be Used in Diesel
STA-BIL Outdoor Power Equipment Family

Product Description

Have rough running or surging small engine equipment? If you see yourself pulling the start cord or having to shake your small engine equipment just to try and get it to start or stay running, then you may need STA-BIL Fast Fix. This additive was designed specifically to treat small engines having a little trouble running. The fuel system cleaners go to work right away to start eating away at gum and varnish that causes rough starts, or no starts. Ethanol blended fuels are no worries with this formula as Fast Fix will help keep the fuel system clean. Everything from the tank to the carburetor or injectors will be cleaned out when using Fast Fix. This product prevents the need of having to take your small engine to a shop or having to disassemble the engine. This formula is compatible with all gasoline small engine equipment. Just pour in the tank and be on your way. The 4oz bottle will treat 10 gallons of gas and the 8oz bottle will treat 20 gallons.

Product information

Technical Details

Additional Information

Warranty & Support

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STA-BIL

STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green


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What's in the box

  • STA-BIL Fast Fix - 8oz (22304)
  • Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    4,673 global ratings

    Customers say

    Customers like the quality and ease of use of the cleaning agent. For example, they say it works well for small engines and is easy to use. Customers are also impresseded with the value. One downside is the engine, with some complaining that it surges and sputters under load. Opinions are mixed on performance and ease to starting.

    AI-generated from the text of customer reviews

    243 customers mention187 positive56 negative

    Customers like the quality of the cleaning agent. They say it works great, runs perfectly, and works particularly well for small engines. Customers also say it cleans out and opens the passages in the carb. They also mention that it clean the entire fuel system.

    "...Although it is a last effort before removing a carb. It wors extremely well...." Read more

    "This is an amazing product. I run it in my lawnmower each spring and I have not had problems. It counteracts clogged lines due to ethanol gasoline." Read more

    "...Cheaper and easier than carb cleaning or replacement. Highly recommended!" Read more

    "...Hardly wanted to idle on choke. So I did the usual teardown of the carb and cleaned it...." Read more

    37 customers mention29 positive8 negative

    Customers like the value of the cleaning agent. They say it's well worth the money, a real money and time saver, and cheaper than buying new ones. Some say it’s an economic solution to mower replacement and has cut their repair bill to zero. Overall, most are satisfied with the product's value.

    "...Cheaper and easier than carb cleaning or replacement. Highly recommended!" Read more

    "...This product is certainly worth a try and is a lot easier and less expensive then replacing carbureators." Read more

    "...An simple, no fuss, economic solution to mower replacement." Read more

    "Good value, works as indicated." Read more

    13 customers mention13 positive0 negative

    Customers find the cleaning agent easy to use and effective. They say it's a simple, no-fuss, economic solution to mower replacement. Customers also mention that it'll start much easier and run sputter-free. They also say it is a huge time saver.

    "...This product is certainly worth a try and is a lot easier and less expensive then replacing carbureators." Read more

    "...An simple, no fuss, economic solution to mower replacement." Read more

    "...Ease of use? Yes, quite. Pour it into the tank as directed. RECOMMENDED!" Read more

    "...to a weed wacker that was hard to start and sputtered, it started much easier, ran sputter free and appears to have more power!!..." Read more

    106 customers mention67 positive39 negative

    Customers are mixed about the performance of the cleaning agent. Some mention that it runs smooth as the first day, while others say that it idling a little rough at start up and keeps cutting off.

    "...and by the time I was finished the surging had stopped - idle was as smooth as day I purchased machine and start up the next storm was instant..." Read more

    "...mower for about 15 min and all the sputtering was gone and it ran smooth as can be! Cheaper and easier than carb cleaning or replacement...." Read more

    "...Well it still wasn't happy about idling and had a misfire at idle. Reving up was fine, but higher rpm cruising it was starving for fuel...." Read more

    "This helped me get my snowblower going and made the engine run better." Read more

    55 customers mention27 positive28 negative

    Customers are mixed about the ease of starting the cleaning agent. Some mention that it starts right up and runs smoothly, while others say that it wouldn't start.

    "...After running the engine for a few hours, it started without problems. This product made a believer out of me!" Read more

    "...I tried starting it right away and it didn't start that day...." Read more

    "This product works particularly well for small engines. Brings them back to life and cars run smoother too. i am sold on this item." Read more

    "...Well it still wasn't happy about idling and had a misfire at idle. Reving up was fine, but higher rpm cruising it was starving for fuel...." Read more

    14 customers mention9 positive5 negative

    Customers are mixed about the stability of the cleaning agent. Some mention that it has very little vibration and no surging, while others say that it started surging badly and was hard to start.

    "...After about 10 minutes it stopped surging. Nice that I didn't have to hassle pulling the carbs and cleaning them." Read more

    "...some in the mower, shook it around cranked a LOT and it started and ran without a bobble...." Read more

    "...and last year about half way through the mowing season, it started surging badly and most of the time, it would not stay running unless the throttle..." Read more

    "...The saws now start reliably, do not stall, and the idling is like a cat purring." Read more

    6 customers mention3 positive3 negative

    Customers are mixed about the sound quality of the mower. Some mention that it sounds great now, while others say that it sounded awful and like an old Volkswagen.

    "...Saving string and less noise." Read more

    "...up but it struggled to get a smooth rpm plus I could hear a low knocking sound also...." Read more

    "Worked fast. Mower sounds great now. Used it with high test. Runs and starts smooth. No more pulsation." Read more

    "...Sounded awful but after mid idle for around twelve minutes it ran smooth as silk...." Read more

    14 customers mention0 positive14 negative

    Customers are dissatisfied with the engine of the cleaning agent. They mention that it surges, misses, and runs poorly. Some customers also report starting issues and a lot of sputtering under load. Additionally, some customers mention that the lawn mower engine is surging and popping out the exhaust.

    "...I let it run 15 minutes and tried to engage the blade but it started to sputter again. I just filled the tank and let it run an hour...." Read more

    "...After another 5 years, the carburetor started acting up again...." Read more

    "...The engine would surge, miss, and run very poorly making it unsuitable as an electric power generator...." Read more

    "Fixed my small engine surge." Read more

    MIRACLE in a bottle.
    5 Stars
    MIRACLE in a bottle.
    SO THANKFUL for Amazon reviewers!! I bought this item (small bottle from Wally Mart) based solely on Amazon reviews I deemed trustworthy. I've only used in push lawn mowers behind a never ending saga of despair regarding (several - far too many - mowers) since moving to New England. No gas stabilizer, winterizing, storage concerns are needed where I'm from. Mowers never get "stored" in the south... Sta-Bil first used in a 7.0HP Craftsman (take no prisoners) mower. I'd been religiously adding Seafoam Gas Stabilizer with every tank full of gas per first owner's recommendation, but mower started to choke within a year. I'd been religiously changing oil and filters, as well as adding the gas stabilizer since ownership. Sta-bil was a literal, immediate "shot in the arm" for the mower's performance. I bought this large bottle from Amazon (cheaper than Wally) for my 'new', very expensive Toro mower, also purchased used (from big box store). The oil, air filter, and blade were pristine, so I assumed caurberator and gas filter had been maintained as well. I still experienced what I sensed was some sort of hesitation (blockage) in cranking and performance. I'd been adding Seafoam to each gas fill per the advice given from Craftsman owner. I added Sta-Bil to Toro the day it arrived from Amazon.... Wow. What a difference. Immediate. Paid a nail biting price for the used mower. Beat myself up behind the decision until adding Sta-Bil. It literally made the purchase 500% worthwhile. Can only thank previous posters, and wish future buyers the same results.
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