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STA-BIL Small Engine Pro Multi-System Additive - Protects Against Ethanol - Cleans Carb and Injectors - Improves Engine Efficiency - Lubricates Valves and Pistons, 16 fl. oz. (22305)

  • Based on 899 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
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Arrives Thursday, Oct 15
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Size: 16 Fl Oz (Pack of 1)


Style: Individual


Features

  • Clean and improve your fuel system with Small Engine Pro, a gasoline/oil additive that helps restore lost engine power and performance, by cleaning out gum and varnish
  • Keeps internal engine components lubricated and free, providing longevity to internal engine parts
  • With optimal lubrication and cleaning, this formula effectively quiets noisy engines
  • Protects Against Ethanol - Corrosion Inhibitors provide the ultimate protection against the harmful effects of Ethanol
  • Safe for use in all gas powered small engine equipment including lawn mowers, trimmers, chainsaws, pressure washers, edgers, snow blowers, generators and more!

Description

Looking to be the small engine pro? Well, now it is easy! Introducing STA-BIL Small Engine Pro. Whether you are just looking to keep a piece of equipment running like new or you have a piece of equipment that needs a simple tune-up this additive is for you. This multi-system additive is great in your oil or gas. When added to your oil this will lubricate and free sticky valves and pistons adding a layer of protection in your crankcase while also helping to quiet noisy engines. If adding to your gasoline it will help clean out gum and varnish to restore lost engine power and reduce any rough running issues. It also has powerful corrosion inhibitors to protect against water-attracting ethanol-blended fuels. This is a great can to keep around the garage for any small engine equipment you may have. It works great in mowers, leaf blowers, snowblowers, chainsaws, weed whackers, generators, and more! Effective in both 2 and 4 cycle engines. We recommend using this product in season to keep your engine running at its optimal performance.

Brand: STA-BIL


Item Form: Liquid


Scent: scent


Specific Uses For Product: Engines


Item Volume: 16 fluid ounces


Item Form: Liquid


Scent: scent


Specific Uses For Product: Engines


Surface Recommendation: Metal


Special Features: Clean and improve your fuel system with Small Engine Pro, a gasoline/oil additive that helps restore lost engine power and performance, by cleaning out gum and varnish, Keeps internal engine components lubricated and free, providing longevity to internal engine parts, Protects Against Ethanol - Corrosion Inhibitors provide the ultimate protection against the harmful effects of Ethanol, Safe for use in all gas powered small engine equipment including lawn mowers, trimmers, chainsaws, pressure washers, edgers, snow blowers, generators and more!, With optimal lubrication and cleaning, this formula effectively quiets noisy engines


Brand Name: STA-BIL


Global Trade Identification Number: 58


Manufacturer: Gold Eagle Co.


UPC: 073905223058


Included Components: STA-BIL Small Engine Pro (22305)


Item Type Name: STA-BIL Small Engine Pro Multi-System Additive - Protects Against Ethanol - Cleans Carb And Injectors - Improves Engine Efficiency - Lubricates Valves And Pistons, 16 fl. oz. (22305)


Model Number: 22305


Part Number: 22305


Warranty Description: Everything you purchase from us comes with a 100% Satisfaction Guarantee. Our 100% Satisfaction Guarantee means you’re covered if you are unhappy with the results of the product or if it does not hold up to the claims on the label.


Item Volume: 16 fluid ounces


Unit Count: 16 Fluid Ounces


Number of Items: 1


Item Weight: 1.1 pounds


Size: 16 Fl Oz (Pack of 1)


Material Type Free: gas free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 15

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Worth it!
Size: 16 Fl Oz (Pack of 1) Style: Individual
My 11yo Husqvarna walk behind mower ran terribly due to my local gas(ethanol mix) till I started adding this to the gas now it starts on the first pull and runs great!!!
Reviewed in the United States on July 28, 2026 by doug dally

  • It works!
Size: 16 Fl Oz (Pack of 1) Style: Individual
A short story long---LOL---My zero turn started acting quirky-it would not run at full power and would begin to stall when put under a full load - like trying to mow some taller or thicker grass- never did stall since I would immediately kill the mower but obviously it was not right. I checked and changed the fuel filters-this one has 2 . One in the pick up line in the tank and one is inline just before the fuel pump unit. No help! So, before I dropped the big bucks to have the local farm dealer come and pick it up (at $75 per pickup and return) plus h=whatever shop charges that would result I thought "What the heck, lets give this stuff a try" I gambled $6 . I put in 5 ounces for the 5 gallons tank, and filled it with the gas I had on hand- should have been relatively fresh gas -no more than 2 weeks since pumped . Well, whatever the cause of the issue within about 15 to 30 minutes of low speed running- mostly at idle - the engine seemed to be idling smoothly as opposed to before where it surged but never died, I gave it a try at mowing. YEA!!!! full power and no bogging down - I finished mowing the yard and a part of the pasture (not yet grown up much so it is not requiring the rotary cutter YET) My only guess is perhaps a batch of either old gas or some water in the gas can or mower tank but whatever the cause it fixed it --and all for $6. ... show more
Reviewed in the United States on April 12, 2025 by Gary0529

  • Gas treatment
Size: 16 Fl Oz (Pack of 1) Style: Individual
Seems to work well.
Reviewed in the United States on September 19, 2026 by renee

  • Good Product
Size: 16 Fl Oz (Pack of 1) Style: Individual
It helps my lawnmower run smooth and start faster. I recommend this.
Reviewed in the United States on July 10, 2026 by T****1

  • Just Great !!
Size: 16 Fl Oz (Pack of 1) Style: Individual
Just Great !!
Reviewed in the United States on September 18, 2026 by Ralph Hepburn

  • Essential fuel treatment that keeps small engines starting reliably
Size: 16 Fl Oz (Pack of 1) Style: Individual
This treatment works wonders for keeping lawn mowers, weed eaters, and other outdoor power equipment idling smoothly and firing up on the first pull. It keeps standard pump gas fresh over months of storage and protects internal fuel system components from nasty ethanol corrosion. The easy-pour bottle design lets you measure out precise amounts to mix into small gas cans without spilling a drop. ... show more
Reviewed in the United States on June 28, 2026 by HurricaneDave

  • Excellent for cleaning lacquer inside carburetor.
Size: 16 Fl Oz (Pack of 1) Style: Individual
Old mower with build up in the carburetor. Cleaning it out nicely. Takes some time but getting there.
Reviewed in the United States on July 17, 2026 by Kent C. Bois

  • Good Product
Size: 16 Fl Oz (Pack of 6) Style: Case
Works as advertised. Just know you may need to add it to the gas, turn your engine over, to mix it in the carb and let it set overnight. That way it soaks the crude loose.
Reviewed in the United States on July 17, 2026 by Steve

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