STA-BIL Fast Fix Small Engine Treatment, 236 ml
Does your small engine need a fix fast? STA-BIL FAST FIX does the hard work for you. Engineered by the industrys top fuel chemists, Fast Fix combats issues caused by ethanol-blended fuels. The additive works by removing water, cleaning carbs and injectors, and cleaning the entire fuel system to eliminate unwanted debris. If your small engine has a rough idle or wont start, trust STA-BIL FAST FIX to get your motor going again. It's great for use in push mowers, riding mowers, weed eaters, snow throwers, and more. Directions:Use 1oz (30mL) of STA-BIL FAST FIX for every 2.5 gallons (11L) of fuel. Once youve measured out the correct ratio, pour STA-BIL FAST FIX directly into the fuel tank of your 2-cylinder or 4-cylinder equipment. After pouring in the additive, top up the tank with fresh fuel. Finally, start the engine of the small equipment treated and let it run for 15 minutes uninterrupted.
Does your small engine need a fix fast? STA-BIL FAST FIX does the hard work for you. Engineered by the industrys top fuel chemists, Fast Fix combats issues caused by ethanol-blended fuels. The additive works by removing water, cleaning carbs and injectors, and cleaning the entire fuel system to eliminate unwanted debris. If your small engine has a rough idle or wont start, trust STA-BIL FAST FIX to get your motor going again. It's great for use in push mowers, riding mowers, weed eaters, snow throwers, and more. Directions:Use 1oz (30mL) of STA-BIL FAST FIX for every 2.5 gallons (11L) of fuel. Once youve measured out the correct ratio, pour STA-BIL FAST FIX directly into the fuel tank of your 2-cylinder or 4-cylinder equipment. After pouring in the additive, top up the tank with fresh fuel. Finally, start the engine of the small equipment treated and let it run for 15 minutes uninterrupted.
Does your small engine need a fix fast? STA-BIL FAST FIX does the hard work for you. Engineered by the industrys top fuel chemists, Fast Fix combats issues caused by ethanol-blended fuels. The additive works by removing water, cleaning carbs and injectors, and cleaning the entire fuel system to eliminate unwanted debris. If your small engine has a rough idle or wont start, trust STA-BIL FAST FIX to get your motor going again. It's great for use in push mowers, riding mowers, weed eaters, snow throwers, and more. Directions:Use 1oz (30mL) of STA-BIL FAST FIX for every 2.5 gallons (11L) of fuel. Once youve measured out the correct ratio, pour STA-BIL FAST FIX directly into the fuel tank of your 2-cylinder or 4-cylinder equipment. After pouring in the additive, top up the tank with fresh fuel. Finally, start the engine of the small equipment treated and let it run for 15 minutes uninterrupted.
Does your small engine need a fix fast? STA-BIL FAST FIX does the hard work for you. Engineered by the industrys top fuel chemists, Fast Fix combats issues caused by ethanol-blended fuels. The additive works by removing water, cleaning carbs and injectors, and cleaning the entire fuel system to eliminate unwanted debris. If your small engine has a rough idle or wont start, trust STA-BIL FAST FIX to get your motor going again. It's great for use in push mowers, riding mowers, weed eaters, snow throwers, and more. Directions:Use 1oz (30mL) of STA-BIL FAST FIX for every 2.5 gallons (11L) of fuel. Once youve measured out the correct ratio, pour STA-BIL FAST FIX directly into the fuel tank of your 2-cylinder or 4-cylinder equipment. After pouring in the additive, top up the tank with fresh fuel. Finally, start the engine of the small equipment treated and let it run for 15 minutes uninterrupted.
in 9 offers
The lowest price for STA-BIL Fast Fix Small Engine Treatment, 236 ml right now is $17.96 at Carkart, compared across 7 retailers.
The all-time low was $12.00 on 27 Nov 2025 — today's price is 50% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 9 June 2026.
Last updated at 09/06/2026 00:46:31
STA-BIL Fast Fix Small Engine Treatment, 236 ml
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
STA-BIL Fast Fix Small Engine Treatment, Cleans Carburetors & Injectors, 8oz, Green, Model 22304
Delivery $28.38
Fast Fix Small Engine Treatment, 4 oz Treats 10 Gallons Fixes Rough Running Engines, Carburetor & Fuel Injector Cleaner, Removes Water, for Lawn Mow
Delivery between 15–18 June $29
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8
Delivery between 15–18 June $29
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons (2
Delivery between 15–18 June $29
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough
Delivery between 16–18 June $14.37
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough
Delivery between 13–17 June $13.18
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough
Delivery between 13–17 June $13.99
STA-BIL Fast Fix Small Engine Treatment, 4 oz 12 Pack Fixes Rough Running Engines,
Delivery between 13–17 June $15.41
originally posted on walmart.com
The lid was loose about 2 ozs spilled in the zip lock bag it was packed in . The advertisement Said works in small engines in Just 15 minutes. I left it run for 45 minutes with absolutely no improvement.
originally posted on goldeagle.com
Used it in my mower, it always has started on third pull and I want it to stay that way, it's over 12 yrs. old runs well. I used "Fast Fix" in my neighbors mower that he neglects, it didn't want to start, put about an ounce of "Fast Fix" in tank and little down carb. Took a few pulls, it started and ran well then as well as rest of this summer season. Neighbor said what is that - jet fuel! Great product!
originally posted on walmart.com
I have used this on family members’s equipment that had gas left in them. After draining and cleaning out tanks and carburetors bowls I use this and a little fresh gas to start them. This helps get them started like spray starting fluid, but cleans out jets and passages that spray starting fluid doesn’t. It has saved me from having to do full carburetor rebuilds or replacements. Some machines have twenty year old carburetors that still work well.
| Item form | Liquid |
| Specific uses for product | Bottle, Engine |
| Item volume | 8 Fluid Ounces |
| Unit count | 236 millilitre |
STA-BIL Fast Fix Small Engine Treatment, 236 ml
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
STA-BIL Fast Fix Small Engine Treatment, Cleans Carburetors & Injectors, 8oz, Green, Model 22304
Delivery $28.38
Fast Fix Small Engine Treatment, 4 oz Treats 10 Gallons Fixes Rough Running Engines, Carburetor & Fuel Injector Cleaner, Removes Water, for Lawn Mow
Delivery between 15–18 June $29
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8
Delivery between 15–18 June $29
STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons (2
Delivery between 15–18 June $29
The lid was loose about 2 ozs spilled in the zip lock bag it was packed in . The advertisement Said works in small engines in Just 15 minutes. I left it run for 45 minutes with absolutely no improvement.
Used it in my mower, it always has started on third pull and I want it to stay that way, it's over 12 yrs. old runs well. I used "Fast Fix" in my neighbors mower that he neglects, it didn't want to start, put about an ounce of "Fast Fix" in tank and little down carb. Took a few pulls, it started and ran well then as well as rest of this summer season. Neighbor said what is that - jet fuel! Great product!
I have used this on family members’s equipment that had gas left in them. After draining and cleaning out tanks and carburetors bowls I use this and a little fresh gas to start them. This helps get them started like spray starting fluid, but cleans out jets and passages that spray starting fluid doesn’t. It has saved me from having to do full carburetor rebuilds or replacements. Some machines have twenty year old carburetors that still work well.
I purchased a Black Max generator powered by a 13hp Honda GTX engine for emergency preparedness such as fires, earthquakes and unexpected power outages. Once a year I would add Sta-Bil Fuel Stabilizer and 1/2 gallon of gas to the generator gas tank. I then ran it for about an hour before turning off the fuel valve and letting the engine use the remaining gas in the carburetor. Each year the generator started on the first pull until this year which is year #10. The engine didn't want to start and when it did it ran ROUGH. I read about Sta-Bil Fast Fix and thought this sounded too good to actually work. I drained the gas tank and added fresh fuel with the recommended amount of Fast Fix. I left the kill switch off and pulled the cord 3 times. After about 5 minutes I ... MoreI purchased a Black Max generator powered by a 13hp Honda GTX engine for emergency preparedness such as fires, earthquakes and unexpected power outages. Once a year I would add Sta-Bil Fuel Stabilizer and 1/2 gallon of gas to the generator gas tank. I then ran it for about an hour before turning off the fuel valve and letting the engine use the remaining gas in the carburetor. Each year the generator started on the first pull until this year which is year #10. The engine didn't want to start and when it did it ran ROUGH. I read about Sta-Bil Fast Fix and thought this sounded too good to actually work. I drained the gas tank and added fresh fuel with the recommended amount of Fast Fix. I left the kill switch off and pulled the cord 3 times. After about 5 minutes I turned the switch to run and the motor started on the first pull, although it was still running rough. After about 1 minute the engine started to smooth out and within 5 minutes it sounded like new again. Everything worked exactly as described. That was the best $10 that I've spent in a long time. I highly recommend Fast Fix to work as advertised.
I am a big fan of Sta-Bil fuel stabilizer which has worked for me for years. My Cub Cadet snowblower started running rough recently, and I was looking for a fix. When I heard of your Fast Fix product, I was so excited. I used it 3 times over the last 2 days on my snowblower following the directions, and I believe that the rough running conditions have gotten worse. It is now running rougher. I live in the snow belt, and the places to fix it told me it would be about 4 weeks time. I would get buried in snow waiting that long. At this time, I am so disappointed in this product that I will give it zero stars but your site requires at least 1 star. I do not want any follow up emails, but I am required to add an email address.
Had a late start on firing my snowblower up for the next day's snowstorm and it would not start So, found this product and put it to work. It was a back saver from shoveling. Followed the instructions and it did what I needed it to do. I have used other Sta-Bil products and always will they never let me down.
First time user; dreaded trying to start a generator and a pressure washer. In both, the gas was three years old. I drained out what I could,added fresh ethanol-free gas and an ounce of Fast Fix. Four pulls on the generator and three pulls on the pressure washer and we were running! Thank you!
Could not get snowblower to fire up ! I thought that I was going to have to either rebuild or get a new carb ! I drained old fuel and put 2 stroke oil and Fast Fix in tank .I put choke on full and pulled the starter cord ! The engine fired up but ran really rough . I had to keep using the primer to keep it running. After about ten minutes it started to run much better and I was able to open the choke . I still can not believe it ! I love this stuff . So easy !
My tractor was running fine. I ran out of fuel and after refueling it was running very rough. Engine would rev and then would cut back almost to a stall in idle. I did a search online and came across this product. I think I did a search on their website to see who carried it. I first tried my auto parts store to see if they might carry it. No luck plus gave me advice from change the gas filter to removing and cleaning the carburetor. I thought I’d give this a try first. Remembered TS carried it picked some up and it worked like a champ! Saved me time and money!
I have a hunting lodge and several polaris's. They can sit for a month at times. After a recent tune up I noticed one running rough. I tried a can of Sta-Bil fast fix and it ran even better than right after the tune up. This is great stuff. Should be included in every all engine tune up.
| Item form | Liquid |
| Specific uses for product | Bottle, Engine |
| Item volume | 8 Fluid Ounces |
| Unit count | 236 millilitre |
