STA-BIL® Fast Fix

Part #: 22304 | 236ml

STA-BIL® Fast Fix

  • Eats away at gum and varnish that cause rough starts / no starts
  • Fixes ethanol-blended fuel issues
  • Complete small engine fuel system cleaner
  • Eliminates water
  • Compatible with ALL small engines and prevents the need to disassemble engines for fuel-related issues. 

Does your small engine need a fix fast? STA-BIL FAST FIX does the hard work for you! Our formula, engineered by the industry’s top fuel chemists, 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 won’t start, trust STA-BIL FAST FIX to get your motor going again.

Great for use in push mowers, riding mowers, weed eaters, snow throwers, and more!


Use 30ml of STA-BIL FAST FIX for every 10 litres of fuel. Once you’ve measured out the correct ratio, pour STA-BIL FAST FIX directly into the gas tank of your 2-cycle or 4-cycle equipment. After pouring in the additive, top off the gas tank with fresh fuel. Finally, start the engine of the small equipment treated and let it run for 15 minutes uninterrupted.

What is the shelf life of STA-BIL® Fast Fix?
The shelf life of STA-BIL® Fast Fix is 2 years after the bottle has been opened, provided it has been tightly capped and stored in a cool, dry place.  It will not harm anything if you use an old bottle, it just may not be as effective.

How much STA-BIL® Fast Fix should I add to my equipment?
STA-BIL® Fast Fix, use 30mL to 10L of gasoline, gas/oil mixtures, or ethanol blends.  Over treatment will not harm your equipment.

What equipment can I add STA-BIL® Fast Fix to help with rough running engines?
STA-BIL® Fast Fix is safe to use on all 2-cycle and 4-cycle equipment such as lawn mowers, leaf blowers, trimmers, weed eaters, chainsaws, snow throwers, atv’s, motorcycles, and more.