Skip to product information
1 of 2

STA-BIL Fast Fix Engine Treatment 4oz / 8oz

STA-BIL Fast Fix Engine Treatment 4oz / 8oz

Regular price £5.99
Regular price Sale price £5.99
Sale Sold out
Tax included. Shipping calculated at checkout.
UPC(s): 22303: 73905223034 22304: 73905223041
  • Fixes poor/non-running engines by eating the gum and varnish that causes rough starts, or no starts
  • Fixes issues caused by ethanol blended fuels
  • Cleans the entire fuel system - Simultaneously cleans injectors/carburettors while cleaning the rest of the fuel system
  • Prevents the need to diss-assemble the engine and is compatible with ALL small engines
  • Treats 20 gallons
  • Made in the U. S. A.
  • Compatible with 2-stroke and 4-stroke engine


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 1oz of STA-BIL FAST FIX for every 2.5 gallons 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.

Additional Information

2 sizes available

View full details