Search  for anything...

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) , Red

  • Based on 706 reviews
Condition: New
Checking for product changes
$6.98 Why this price?
Holiday Deal · 30% off was $9.99

Buy Now, Pay Later


As low as $1 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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

View our full returns policy here.


Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Dec 29
Order within 10 hours and 39 minutes
Available payment plans shown during checkout

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


Specific Uses For Product: Engines


Item Volume: 16 Fluid Ounces


Unit Count: 16.0 Fl Oz


Manufacturer: ‎Gold Eagle Co.


Brand: ‎STA-BIL


Model: ‎STA-BIL


Item Weight: ‎1.04 pounds


Product Dimensions: ‎2.6 x 2.6 x 7.7 inches


Country of Origin: ‎USA


Item model number: ‎22305


Manufacturer Part Number: ‎22305


Special Features: ‎Safe for use in all gas powered small engine equipment including lawn mowers, trimmers, chainsaws, pressure washers, edgers, snow blowers, generators and more!, Protects Against Ethanol - Corrosion Inhibitors provide the ultimate protection against the harmful effects of Ethanol, With optimal lubrication and cleaning, this formula effectively quiets noisy engines, Keeps internal engine components lubricated and free, providing longevity to internal engine parts, 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


Date First Available: August 21, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 29

This item is non-returnable:

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

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Helps on engine wear, ethanol is hard on your motor ( ALCOHOL )
Size: 16 Fl Oz (Pack of 1) Style: Individual
I use it as an additive for my small outdoor equipment engines , works great.
Reviewed in the United States on May 23, 2024 by jimmy b

  • Great stuff
Size: 16 Fl Oz (Pack of 1) Style: Individual
Did what it says it does...great product..easier motor starts and quieter and smoother running....
Reviewed in the United States on August 4, 2024 by Kenneth J. Albright

  • Seems to work
Size: 16 Fl Oz (Pack of 1) Style: Individual
The lawnmower seems to run smoother after putting this in the gas tank. It’s a very large bottle & given the amount that should be used, it should last a few seasons.
Reviewed in the United States on April 7, 2024 by Michael K.

  • This has been a savior for my 17 yo mower engine
Size: 16 Fl Oz (Pack of 2) Style: Individual
I damaged one of the mower spindles early in the spring of '23 and then never got around to fixing it. The gas had Stabil in it but the engine ran rough (bad), especially when engaging the blades after repairing the spindle. After draining as much of the old fuel as I could this spring, I used two kinds of Seafoam, the spray straight into the carb and then a high concentration of the Multi-System Additive into the fuel. The engine spit and sputtered for a good two minutes and then smoothed out. When engaging the blades (more load) before the Seafoam, the engine would almost kill and then backfire and run even rougher. After the Seafoam, that didn't happen. I'll never use anything else. ... show more
Reviewed in the United States on July 29, 2024 by S. D. Johnson

  • STA-BIL small engine pro multi system additive.
Size: 16 Fl Oz (Pack of 1) Style: Individual
Just what i was looking for.
Reviewed in the United States on December 5, 2024 by Amazon Customer

  • Works great for cleaning carbs
Size: 16 Fl Oz (Pack of 1) Style: Individual
I have used this and Seafoam regularly for many mowers that I have found discarded on the side of the road. I drain the old gas from the tank and bowl, refill with fresh gas and this product. Squirt the carb with starting fluid and get it running. It may be rough running at first but it eventually smoothes out. I also use it for my mowers every spring. I love this stuff and highly recommend it. ... show more
Reviewed in the United States on August 7, 2024 by Rich from OP

  • Very good Product for Fuel and Oil
Size: 16 Fl Oz (Pack of 1) Style: Individual
Since Briggs and Stratton quit making my preferred additive for small engines, I have been testing out alternatives. Since I already use Sta-bil Storage to treat my fuel, I decided to try this product and their other product Small Engine Fix in hopes of finding something comparable to the 5-in-1 and I was happily surprised by both of Sta-bil products. This product is a great additive to your fuel and even the oil on 4 strokes small engines. It has helps to keep mine and my customers small equipment purring along swimmingly. See my review of Small Engine Fix if your equipment just isn't reving up like it used to. ... show more
Reviewed in the United States on September 11, 2023 by FL_Sparky

  • Works great
Size: 16 Fl Oz (Pack of 1) Style: Individual
Buy it. You won’t be sorry.
Reviewed in the United States on May 15, 2024 by Rick Davis

Can't find a product?

Find it on Amazon first, then paste the link below.