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⚡ Power up your small engines with STA-BIL Fast Fix — because downtime is so last season!
STA-BIL Fast Fix is a potent 8oz fuel additive (pack of 2) designed to clean carburetors and injectors, eliminate water contamination, and fix rough running small engines. Compatible with all 2-cycle and 4-cycle engines, it treats up to 20 gallons of fuel per bottle, ensuring reliable starts and peak performance across your outdoor power equipment.








| ASIN | B0CXQ16SJH |
| Best Sellers Rank | #247 in Automotive ( See Top 100 in Automotive ) #3 in Fuel Additives |
| Brand Name | STA-BIL |
| Contains Liquid Contents? | Yes |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,381) |
| Item Form | Liquid |
| Item Type Name | STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up To 20 Gallons, 8oz (22304) |
| Item Volume | 16 Fluid Ounces |
| Item Weight | 0.92 Pounds |
| Manufacturer | Gold Eagle Co. |
| Number of Items | 2 |
| Scent | Unscented |
| Unit Count | 16.0 Fluid Ounces |
M**R
Fantastic product
Works Great, at first didn't believe all the reviews, I've bought 5 chainsaws from one season to the next. After each winter couldn't get them to start. Followed the instructions to flush and let sit for a few days. Every one started and ran great. Hands down, this is a remarkable product for cleaning out blocked fuel systems from sitting all winter would recommend it for all 2 cycle engines and use the stable blend for winter as well as anytime use to prevent fuel spoilage.
T**Y
This actually works.
This stuff is amazing. It revived my old leaf blower and saved me several hundred dollars. Now I’m putting it in other 2 stroke engines and they are all coming back. Take your time. I let it sit, and it ate away all the varnish inside the carb. Really great product. I’ll definitely buy again.
T**T
Works great!
I never write reviews, but I am this time. I have a snowmobile that I haven’t started in 2 years. I tried starting it and it would crank over, but wouldn’t start. So, I changed the spark plugs and drained the gas. I put in new gas/spark plugs and it still wouldn’t start. I put in about 3 ounces of Fast Fix in 4 gallons of gas. Cranked it over a few times per the bottle directions and left everything sit for about 48 hours. Turned the key, and it cranked a few times and fired right up….i was totally shocked!! Definitely worth the money!
N**H
Cheap insurance for small engine performance
Using it in my small power generator. Stops the hiccups and misfires. Runs smooth. Always have small engine gas mixed with STA-BIL. And fast fix periodically added directly to the fuel tank to keep the carb clean of varnish. So it will start during that next power outage.
H**W
Highly recommended
Phenomenal product!!! I highly recommend this product as I use it in my motorcycles. It works so well I’ve never had to have their carbs serviced!! They start being a little sluggish i just add this and ready to go! I use a bottle a season!
R**T
Use as directed
I just used this fluid in my gas concrete cutting saw. It was running rough with poor acceleration. I added the fluid to the gas tank, started the engine. And within minutes it was fast and powerful again. No hesitation. Thank you fast fix!!!!
D**A
This will help you start your small motor/engine…..
This stuff is absolutely amazing… bought a brand new lawnmower last year did not use it…. So the lawnmower just sat there for almost a year…. Went to start up, would not start up…. I did everything…poured out all the old gas…. Bought brand new guys took off the top cover put my drill to it on high speed to start it….. nothing worked… my neighbor recommended this stuff… I’ll be honest I poured a little bit more than I think I should have directly into the gas receiver then I put about 10 to 14 ounces of fresh gas that I had already tried to use, but it didn’t work…. I went to crank it twice just to get the liquid into the system…. And it started up on the second crank…. I’m not really amazed by much. This really threw me off….. It really works good I would highly recommend.
T**Y
This product works !!!
Last snow storm , snowblower stopped half way, would not restart. I saw online on this product, put it in with the gas, started, ran it for 15 mins as per instructions. Recent snowstorm, cleared my place plus my two neighbors . My snowblower kept going, didnt stop. Great product, get it, it works !!!
T**T
I was weary at first, but I added a small amount to each of my snowblower, lawn mower, and gas trimmer, and I can hear a subtle difference in the smoothness of the engine's run, especially my lawn mower. I maintain my seasonal tools with gas treatment and oil changes, so this is just an add-on, but I bought a second bottle because of how pleased I was.
E**N
Seems to work well and cleans out my small-engine fuel systems.
H**M
Great product. Snowblower was struggling to start then popping when running. Put in and ran for 15, then let stand for a few hours and started again. Completely running smooth. First video was loud running and popping noise. Not smooth. Then this is after use.
S**R
I don't write a lot of reviews, but it's worth it for this stuff. My snowblower carburetor was pretty clogged, to the point of hardly having any go power. Used one application and a couple uses later, it's now running like new! Def worth it!!
D**O
Product work as instructed! I used 2 ounces to 10ltrs to fix idle on 9.9hp Yamaha outboard idle issue! Left the 91 fuel in 8months and it turned to varnish blocking up idle circuits! Made new batch of 10ltrs of 95 fuel and two ounces of Fast Fix and run for 30min and it fixed it perfectly 10/10
Trustpilot
2 months ago
3 days ago