12 best lawn mower fuel additive

• 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!
• Made in the U. S. A.

User questions & answers

Question:	How many gallons does this treat
Answer:	Hi. The dosage is 1oz per 1 gallon of fuel. Hope that helps! If there are any questions, please feel free to contact us at [email protected]. Thanks for the question!
Question:	My mower is burning oil will this help
Answer:	It’s a fuel additive, so probably not.
Question:	Can this product be used in a 125 cc motor scooter mower
Answer:	I use it with my Toro self propelled lawn mower and it works great. I really don't know anything about 125cc scooter mowers.
Question:	How many ounces does the cap of this can hold
Answer:	Hi. It is approximately a teaspoon size, about .17oz. Hope that helps! If there are any other questions, please feel free to contact us at [email protected].

Product features

STA-BIL (22305) SMALL ENGINE PRO, 16oz

STA-BIL (22305) Small Engine Pro keeps internal engine components lubricated and free, providing longevity to both fuel and oil systems. With superior cleaning and lubrication agents this formula is highly effective in both 2 and 4 cycle small engines. Compatible with all fuel and oil types.

Product description

Have rough running or surging small engine equipment? If you see yourself pulling the start cord or having to shake your small engine equipment just to try and get it to start or stay running, then you may need STA-BIL Fast Fix. This additive was designed specifically to treat small engines having a little trouble running. The fuel system cleaners go to work right away to start eating away at gum and varnish that causes rough starts, or no starts. Ethanol blended fuels are no worries with this formula as Fast Fix will help keep the fuel system clean. Everything from the tank to the carburetor or injectors will be cleaned out when using Fast Fix. This product prevents the need of having to take your small engine to a shop or having to disassemble the engine. This formula is compatible with all gasoline small engine equipment. Just pour in the tank and be on your way. Proudly made in the USA. The 4oz bottle will treat 10 gallons of gas and the 8oz bottle will treat 20 gallons.

• 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/carburetors while cleaning the rest of the fuel system
• Prevents the need to disassemble the engine and is compatible with ALL small engines including snow blowers, lawn mowers, chainsaws, generators, and more!
• Treats 20 gallons
• Made in the U. S. A.

User questions & answers

Question:	Says 1 oz per 2.5 gallons then in the video and directions shows pouring into gas tank of a lawn mower. First off, mower tanks aren’t 2.5 gallons
Answer:	Hi. Yes, 1oz treats 2.5 gallons. In a smaller tank you'd need roughly .5oz (or tablespoon) per gallon. You do not need to be perfect; simply add your best guess, depending on the amount of fuel you may have in the tank. Hope that helps!
Question:	Can this be used on a Honda 400 4 wheeler
Answer:	The bottle says any 2 stroke or 4 stroke engine
Question:	do you pour it unmixed into the small engine
Answer:	Need to clear up the directions for this product. You say 1oz per 2.5 gallons or gas then show pouring directly into gas tank on a mower. Obviously no mower tank is 2.5 gallons so people automatically revert to thinking to mix it into their red 2.5 gallon gas container. I realize you can do this too but y’all really need to clarify this. Like “1oz into mower tank is good for 2.5 gallons of run time” something like that
Question:	I have used s.b. fuel stabilizer for my small engines for years. can i use 'fast fix' as a fuel additive in every tank of gas along with the stbilizr
Answer:	Sure. Although this product is designed more specifically for reactive and immediate use (e.g. while starting the engine after storage, having performance issues, or rough/no starts). However, it can certainly be used with STA-BIL Brand at the same time -during use or storage. Hope this helps. Please feel free to contact us at [email protected]. Thanks for the question!

Product features

Step 1:

Use 1oz for every 2.5 gallons of fuel

Step 2:

Pour into the fuel tank

Step 3:

Top off with fresh fuel

Step 4:

Start the engine, let it run for 15 minutes

Product description

Am116304 Fuel Filter for Kohler Universal Heavy Duty 1/4"- 5/16" Fuel Lines Replaces Toro/Wheel Horse 71-5960 Oil filters for Engine Lawn Mower(Pack of 5)



Compatible with:



ARIENS: 21541500

BOBCAT: 38283, 38666

BUNTON: PM244

CLUB CAR: 1013684, 1014522, 102003201

Craftsman: 24688

Cub Cadet: OCC-25 050 22

1-303197, 109585, 303197

E-Z-GO: 72084G01

FRAM: G1000

GRASSHOPPER: 101001

GRAVELY: 21410800, 21541500

JACOBSEN: 552265

AM116304, GY20709

Kubota: E7187-82150

KOHLER: 25 050 03-S, 25 050 08-S,25 050 22-S, 25 050 22-S1

LESCO: 050311

ONAN:149-2206-01

TORO: 71-5960, 98021

YAMAHA: JN3-F4560-00, JN6-F4560-00



Package included:

5x fuel filters

• Fits KOHLER 25 050 03-S, 25 050 08-S,25 050 22-S, 25 050 22-S1; TORO 71-5960, 98021; GRAVELY 21410800, 21541500.
• Fits-1/4-inch and 5/16-inch fuel line
• Not for fuel injected engines
• Come with 5pcs fuel filters
• Please check our photos and confirm if the part is identical to your stock one, 6 monthes quality assurance provided

User questions & answers

Question:	Will this fit a john deere x500 riding mower with a kawasakifh721v engine
Answer:	IMO, Yes

Product description

Ethanol Shield Fuel Stabilizer eliminates and prevents ethanol related problems in all equipment with 2-cycle and 4-cycle engines. It prevents corrosion removes water keeps stored fuel fresh and provides easy engine starting all year. Our new Military Specifications Mil-Spec formula which provides level of protection never before available to the general public. It includes an All Metal Anticorrosive Package Top Level ASTM NACE Ratings and an Antioxidant Package - Up to 25X more anti-oxidants compared to leading competitors.Features. Year round protection. Stabilize gas up to 3 years. Protects preserves lubricates the top end of all engines. Item Weight - 24 oz.. Dimension - 3.125 x 3.125 x 9.375 in.. Case Pack weight - 1.575 lbs.

• Year round protection
• Stabilize gas up to 3 years
• Protects, preserves & lubricates the top end of all engines
• Item Weight - 24 oz.
• Dimension - 3.125 x 3.125 x 9.375 in.

User questions & answers

Question:	does ethanol shileld have an expiration date
Answer:	No. It does not expire as long as the cap is secured tightly and as far as I know, temperature changes don't affect the product either.
Question:	Buy it by the gallon
Answer:	I do not know if you can buy it by the gallon. You might do an internet search or contact the manufacturer.
Question:	How much do l used for one gal. Of gas
Answer:	Look on the side of the bottle for directions. It has different mixing ratios depending on what you are using the gasoline for (lawn equipment, automotive, etc). I use 2 oz to treat 5 gallons. Using that ratio, you would need 0.4 oz to treat one gallon.
Question:	oz says to use 1oz for every 5gals of gas for lawn&garden and the 24oz bottle says 1oz for every 2.5gals of gas why is this
Answer:	16 oz. container says the same thing "use 1 oz. per 5 gal. of gasoline for 2 and 4 cycle engines".

Product description

STAR TRON MARINE FORMULA, 16 OZ

Product description

Fuel Treatments, Ethanol, Size/Net Weight .65, Amber, Bottle, Amber / Brown Liquid, Boiling Point (F) Greater Than 150, Flash Point (F) 183, 0.9 Specific Gravity, For Use With Gasoline, Fuel Additive

• America's #1 Ethanol Treatment
• Prevents corrosion caused by ethanol blended fuels
• Increases engine power and efficiency
• Effective in ethanol and non-ethanol blended fuels
• Engineered for year round usage.
• Keeps fuel fresh for up to 12 months
• Made in the U. S. A.
• Flash point: 80.0 degrees_celsius

User questions & answers

Question:	Can this be used in the gas for a Mercury 90 outboard motor
Answer:	Absolutely. It can be used on any gasoline engine. It works on non-ethanol and 2-cycle fuel as well.
Question:	what is the difference between this product, Stable 22275 360 and Stable 22284 360? 22284 has less product and costs more
Answer:	Good question. If you go to the manufactures site, goldeagle dot com, you won't find the 22284 product, just the 22264 product.
Question:	Can be this used in 2004 Lexus ES330, general gas not ethanol fuel
Answer:	Yes, The 10 ounce bottle is good for 50 gallons of gas so watch how much you pour in.
Question:	I typically use non-ethanol gas in my small engines. Will this product give me any benefit
Answer:	It will prolong the "Freshness of the gas either way "

Product features

STA-BIL 360 Protection

STA-BIL 360 Protection, America's #1 Ethanol Treatment, is engineered to combat the negative effects of ethanol blended fuels. This premium formula prevents corrosion, cleans the fuel system and prevents the buildup of unwanted gum and varnish; ensuring your equipment will be ready to go whenever you need it.

Usage Directions

1 ounce (30 milliliters) treats up to 5 gallons (19 liters) of fuel **except 4oz which treats 5 gallons total** . Recommended for use at every fill up in small engines, and vehicles using Ethanol blended fuels. Product does not contain alcohol. Perfect for use in all gasoline cars, trucks, sport vehicles, lawnmowers and smaller.

About Gold Eagle Co.

For more than 85 years, Gold Eagle has been an industry pioneer in the production and distribution of aftermarket additives as well as an innovator and leader in the product development, manufacturing, marketing, and distribution of branded engine performance and maintenance chemicals. The Retail and Installer Brands Group within Gold Eagle Co. markets and sells more than 100 branded products.

Increases Power

Strip away carbon buildup, gum and varnish that can inhibit engine performance, and get the most out of your fuel by burning it more completely. Bring back the power your engine once knew.

Cleans The Fuel System

Clear and prevent harmful gum, varnish and buildup throughout the combustion chamber and injectors.

Maximizes Fuel Economy

Burn fuel more completely and efficiently by preserving the fuel system and engine.

Fuel Stabilizer

Guaranteed to keep fuel fresh for up to 12

• Cures and prevents ethanol fuel problems; helps prevent phase separation
• For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel
• Makes engines start easily and run smoothly; improves fuel economy and reduces emissions
• Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions
• Concentrated formula #930XX is economical to use in large and small applications; safe for use in all engines (including 2-cycle pre-mix)

User questions & answers

Question:	Is this dry gas additive
Answer:	it's liquid. Don't know of any dry fuel additives.
Question:	what is the price on the gallon size of startron gas stabilizer
Answer:	Retail prices are set by the retailers. Consider checking several to determine the best deal.
Question:	Can this product be used in a Toyota highlander hybrid
Answer:	Star Tron can be used in ALL engines, from a lawnmower to a Lamborghini, and in all Hybrid applications that utilize a gasoline engine.
Question:	Does it prevent a small engine carburetor in a lawnmower, power washer etc.from getting gummed up during the winter while idle
Answer:	Yes, Star Tron stabilizes fuel for up to 2 years. The formula can actually help remove and then prevent gums or varnish in carburetors/fuel injectors and other parts of the fuel delivery system.

Product features

Star Tron Enzyme Fuel Treatment - Concentrated Marine Formula - Gasoline

Star Tron Enzyme Fuel Treatment is a multifunctional fuel additive which uses a unique enzyme technology. Helps all engines start easily and run smoothly, even when using ethanol-blended fuel or after sitting idle for months.

Cures and prevents ethanol fuel problems. Star Tron breaks down excess water and sludge to sub-micron size, allowing it to be safely burned away during normal engine operation which helps prevent phase separation.

Increases fuel economy by cleaning the entire fuel delivery system, removing performance robbing gum and varnish deposits while modifying how fuel burns. This results in more complete and uniform combustion, maximum performance, increased fuel efficiency, reduced emissions, and reliable operation.

Stabilize fuel for up to two years, preventing the formation of gums and other solids that clog carburetors and fuel injectors. Star Tron can help rejuvenate old and sub-spec fuel.

Recommended Uses

Star Tron can be used in all gas outboards, inboards, cars, trucks, motorcycles, ATVS, snowmobiles, small engines, outdoor power equipment including pre-mix fuel engines. Star Tron is safe for all engines, will not harm oxygen sensors, and overdosing is not harmful.

Directions

Initial Dosage: Add 1 fl. oz. (30 ml) for every 8 gallons (30 L) of gas.

Refill: Add 1 fl. oz. (30 ml) for every 16 gallons (60 L) of gas.

Overdosing is not harmful.

Stabilizes Fuel

Stabilizes gas for up to 2 years and helps rejuvenate old, sub-spec fuel.

Disperses Water

Helps prevent phase separation by dispersing water into submircron-sized droplets.

Removes Gum & Carbon Deposits

To keep engines running clean and strong.

Enhances Combustion

For complete fuel burn for maximum power & fuel efficiency.

Product description

Advanced Formula Fuel Treatment & Stabilizer protects your engine against the corrosive effects of ethanol and maintain fuel stability for up to 3 years.

• Triple antioxidant protection Corrosion inhibitor guards metal engine parts against corrosion
• Detergent ingredients prevent gum and varnish build-up on engine parts
• Metal De-Activator stops chemical reactions caused by dissolved metals in fuel
• Water Protection inhibitors protect against the harmful effects of water in fuel due to ethanol
• The right fuel treatment from the small engine experts. Treats 20 Gallons of Gas

Product description

Star Tron Enzyme Fuel Treatment is a multifunctional fuel additive which uses a unique enzyme technology that allows all engines to start easily and run smoothly, even when using ethanol-blended fuel or after sitting idle for months.

Star Tron® eliminates and prevents ethanol fuel problems. Star Tron breaks down excess water and sludge to sub-micron size, allowing it to be safely burned away during normal engine operation which helps prevent phase separation.

Star Tron® increases fuel economy by cleaning the entire fuel delivery system, removing performance robbing gum and varnish deposits while modifying how fuel burns. This results in more complete and uniform combustion, maximum performance, increased fuel efficiency, reduced emissions and reliable operation.

Star Tron will stabilize fuel for up to two years, preventing the formation of gums and other solids that clog carburetors and fuel injectors. Star Tron can help rejuvenate old and sub-spec fuel.

Star Tron can be used in all gas outboards, inboards, cars, trucks, motorcycles, ATVS, snowmobiles, small engines, outdoor power equipment including pre-mix fuel engines. Star Tron is safe for all engines and overdosing is not harmful.

Available in three convenient concentrations.

• 143XX Small Engine Formula – Each oz. treats up to 6 gallons of fuel.

• 930XX Concentrate Formula- Each oz. treats up to 16 gallons of fuel.

• 14501 Super Concentrate 1 oz. Single Dose Shooter treats up to 25 gallons of fuel.

• Item Package Dimension:10.08 Inches L X4.07 Inches W X2.52 Inches H
• Item Package Weight:2.5 Pounds
• Product Type:Fishing Equipment
• Country Of Origin: China

User questions & answers

Question:	How long does it take for this to work? I have a new snowblower (only 2 storms and then put up for summer and now won't start) I put in new gas
Answer:	I put this fuel treatment in my 2 cars, my motorcycle and my gas cans that are used for mowers and snowblower. Now, I broke down how much to use for each size gas tank of cars and M.C. Your concerned about your snowblower. So a 5 gallon empty gas can that I USE takes( U do the math as my figures are in the garage and 10inches of snow is outside, sorry) ) Its simple if you get a graduated eye dropper and put your eye dropper into the star Tron and take out the exact amount you figured out and put into the gas can. Fill up the 5 gallon can with gas and it's good for 2years and use in you snowblower, mowers and other 4cycle engines. Doing this you will protect all your engines if you want to protect against harm from the ethanol that we are forced to use. You snow blower will show improvement immediately if the gas is the only problem. I use high test in that gas can right now as I was having trouble with my snow blower because of what ever gas the dealer used. It smelled like old gas in my new snow blower. After I put the new gas from my 5gallon can it ran perfect today in the 10inches we got. Ok fella. It's your choice once in awhile or continued use.
Question:	Expiration date
Answer:	There's no expiration date!! Use now or in 12 months, still work in any condition!! I've been using this product for about 20 years. Use as Directed!
Question:	Tell me about star brite fuel additive
Answer:	If you have any small gasoline powered equipment such as hedge trimmer, chain saw, weed wacker, etc, you must, MUST use this type of additive to counter the damaging effects of ethanol in your gas. I found Star Brite to be both easy to use and totally effective. I also use premium gas in my higher end stuff like Sthil.
Question:	what does it do
Answer:	it stops the negative effects of ethanol in the fuel. The company has a very good website with detailed explanation of how it works. I recommend checking it out. Just Google to find the site.

Product description

The Star Tron proprietary blend of enzymes improves the combustibility of all fuel - including ethanol blends. This means more power and better fuel economy. Star Tron keeps working to clean your fuel delivery system - from tank to injectors - so your engines start easy, and run strong

• Cures and prevents ethanol fuel problems
• Helps prevent phase separation
• Makes engines start easily, run smooth
• Stabilizes gasoline for up to 2 years
• This item is not for sale in Catalina Island

User questions & answers

Question:	I intend to use this to stabilize gas stored in storage containers for use in my generator and snowblower as needed. Any issues for this usage
Answer:	I have used it for that purpose for years and it seems to handle storage issues just fine. I have had the same gas in my old farm tractor for several years and it still starts instantly any time I want to use it.
Question:	year old tank of 2-stroke gas in jet ski. What to do with gas
Answer:	Drain it and dispose of in accordance with local and state regulations. Call your local solid waste department or a local fire department or an auto parts store/repair facility to determine who can accept old fuel for disposal.
Question:	Is this useful in old engines using now using "REC 90" (old fashioned) gas
Answer:	Star Tron is formulated to be used in all "gas" to include gas blended with ethanol (e10) as well as ethanol-free gas (Rec 90). Star Tron can be used in all engines, both old and new.
Question:	Does it need to be mixed through-out the tank. or is it ok if startron were added to a full tank because it will then blend with the rest of the gas
Answer:	I have a neighbor who had a 200 gallon tank 3/4 full of old fuel. He treated the whole tank with startron and I suspect he over dosed a. It knowing him. He let the tank set for about 30 hours and the whole tank was treated and acceptable when he opened the spigot on the tank. It’s easy to tell bad fuel by the smell. It’s also easy to tell your fuel has been recovered by smell. He used all 150 gallons and even fueled up his 2018 Corvette with fuel from the tank.

Product features

Star Tron Enzyme Fuel Treatmen

Star Tron Enzyme Fuel Treatment is a multifunctional fuel additive which uses a unique enzyme technology that allows all engines to start easily and run smoothly, even when using ethanol-blended fuel or after sitting idle for months. Star Tron allows fuel to burn more completely, which results in maximum performance, fuel efficiency and reliable operation. Star Tron will stabilize fuel for up to two years, preventing the formation of gums and other solids that clog carburetors and fuel injectors. Star Tron helps prevent phase separation by dispersing water throughout fuel as submicron-sized droplets that can be safely eliminated while the engine operates. Star Tron Small Engine formula is ideal for use in all gas engines including; boats, cars, trucks, motorcycles, small equipment as well as engines that use pre-mix fuel.

Product description

STP Gas Treatment improves the quality of gas by adding powerful cleaning agents that help fight the accumulation of harmful carbon, gum and varnish deposits in the fuel system that can reduce performance. Also engineered to remove water, which can lead to fuel line freeze. This product is made with jet fuel, a high-quality carrier of active ingredients.

• Improves the quality of gasoline
• Saves gas by keeping fuel intake system clean
• Helps prevent fuel line freeze
• Prevents deposit buildup
• Compatible with cap-less fuel tanks

User questions & answers

Question:	Is this different than fuel injector cleaner? Could it help get rid of rough idling
Answer:	Yes they are different. Rough Idling can mean an engine issue. Having it checked now could save a larger expense later.
Question:	I own a 1988 grand mercury. Can I use this in my tank? it uses regular gas. Please give me correct information
Answer:	If by regular gas you mean unleaded, you should be fine. I like this product and notice a slight improvement in gas usage when I use it...
Question:	will adding this to regular gas improve it to premium gas
Answer:	Sorry but no, it will improve your gas quality, by removing water deposits, increase has mileage, and a slight octane booster.
Question:	The weather will be dropping to a whooping -40 to -50 degrees this week. Will this product prevent the lines from freezing
Answer:	Yes since it is fuel modifier that make gas better and it removes water to. But at -40 an Can HEAT can do it better.

Product description

STA-BIL Start Your Engines! Fuel System Revitalizer is designed to ensure easy starting of 2 and 4 cycle motors, smooth rough idling and stalling, and helps remove gum and varnish from throttle plate and carburetor. STA-BIL Start Your Engines! should be used anytime your engine begins to run rough or becomes difficult to start. It is particularly useful for use after long term storage when engines can be reluctant to start. When used as directed, STA-BIL Start Your Engines! will not harm gasoline engines. STA-BIL Start Your Engines! brand is not recommended for diesel engines and may cause severe damage. The shelf life of STA-BIL Start Your Engines! Fuel System Revitalizer is 2 years from the date of purchase, provided it has been tightly capped and stored in a cool, dry place. Check to be sure fuel line and filters are clean and not plugged and fuel can flow. Check spark plug for deposits and clean or replace if required. Check fuel level in gas tank, add gasoline or OEM approved blend of 2-cycle oil and fresh gasoline, as needed, to assure sufficient gasoline to start engine. Invert the aerosol can upside down, press on the valve side and aim into the fuel tank (Do not spray product into the air or your face). The can will empty in 30 – 60 seconds. Use of unmixed gasoline in a 2-cycle engine can cause engine failure and should never be attempted. Start per the OEM equipment manual recommended starting procedure. If engine does not start a mechanical repair may be required.

• Additive ensures quick easy starts after extended storage
• Ensures smooth idling and performance in season
• For all 2 and 4-cycle small engines
• Revitalizes fuel and the entire fuel system
• Made in the U.S.A.

User questions & answers

Question:	Numbers on cap indicate 10, 20, 30, 40, 50. Are these milliliters?. If so, how many mls for 2.5 gal tank
Answer:	I am not sure about those numbers, but the can contains 2 fluid ounces. I spray it into my filled lawnmower gas tank and it works great. You will probably only need one good spray. The engine should fire right up if your gas is fresh.
Question:	Do I just add it to the gas that's already in my lawnmower
Answer:	Yes, if the gas is less than 3 months old but is best to add to fresh gas. Drain your existing tank as much as possible and then follow directions to mix in a gas can. I believe it says mix with 2 or 3 gallons of gas. Then add 1/2 to 1 gallon of the mixed gas to the machine that doesn’t run well and let it run for 10-20 minutes. My sputtering chainsaw cleared up in 10 min ( but obviously if you have a 2 stroke motor you will need to add the oil also). Good luck.
Question:	My snowblower runs for about 30 secs the first time before stalling. Afterwards, it stalls after abt 10 secs. will this work
Answer:	It could. I bought it to use in my snow blower because I let it sit too long with old gas in it. It did work for me just fine and also on a portable generator that I have. Both ran great after running a quarter tank of fuel through with this product. The old gas sitting gums up the carburetor jets with varnish if you allow it to sit for long periods (over 9 months or longer) without using a fuel stabilizer additive, which I had forgotten to add before I put the machine away for the spring until the next winter. My roto-tiller however was gummed up so badly that it helped it to start and run, but I still had to remove the carburetor on it to unplug the high speed jet because it was gummed up too much and the engine would surge up and down constantly. This stuff is definitely worth a try though. It sure beats having to pull the carb and clean it by hand! It worked for me 3 out of 4 times on pretty badly gummed up small engine carburetors.
Question:	empty tank
Answer:	Maybe that is what some guy on You Tube said but I have dumped this stuff in gas I KNOW was sitting in our 1982 Suburban that hadn't been started for 5 years (straight into the carb with one can and one can in the tank). It has been put in lawnmowers and weed eaters that have not been started since at least the year before.While emptying the gas and putting in fresh would probably be a good idea, unless you use Stabil or something like it in your gas while it was stored, the "gunk" gets into the needle valves and gums them up. This stuff eats out the gunk.My dear departed husband, while an electrical engineer by trade, was one heck of a mechanic and he used this stuff on EVERYTHING (plus a little ether at times). He swore by it. Good stuff as far as both of us were concerned. And since my husband died almost 1.5 years ago, I haven't started the expensive self propelled commercial Lawn Boy we own until about 5 weeks ago. Had a lot of rain in AZ and with the weather getting warm and the weeds getting high, I was worried about rattlesnakes in the yard. So even though I KNOW that Lawn Boy has been sitting with the same gas for two years, one full can, 4 pulls and it started. Had to put some more in it to keep it running, but after another 1/2 can, it ran constantly until I got our acre back yard mowed.

Product features

STA-BIL Start Your Engines Fuel System Revitalizer

Start Your Engines! Fuel System Revitalizer is designed to ensure easy starting of 2 and 4 cycle motors, smooth rough idling and stalling, and helps remove gum and varnish from throttle plate and carburetor.