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Stens STAR BRITE Star Tron Enzyme Fuel Treatment SEF Gasoline Formula - 1 oz. Treats 6 Gallons - 8 OZ (14308) Blue

  • Based on 3,868 reviews
Condition: New
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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Sep 16
Order within 14 hours and 42 minutes
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Features

  • Makes engines start easily and run smoothly; improves MPG and reduces emissions
  • Stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel
  • Cures and prevents ethanol fuel problems; helps prevent phase separation
  • Cleans valves & injectors of carbon deposits, gums and varnish
  • Small Engine Formula 14308 is safe for use in all engines (including 2-cycle pre-mix)

Product Dimensions: 7.15 x 2.95 x 1.85 inches


Item Weight: 8.1 ounces


Department: ""


Manufacturer: Star brite


Country of Origin: China


Item model number: 14308


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews


  • Very Critical Review long time user
Back in 2008 I tried this product in what is now the standard E10 or gasoline containing 10% ethanol and was very surprised. My father is a very experienced street or high performance engine builder, tuner, and mechanic with almost 50 years of experience he has always been against adding anything to gasoline or diesel. To my surprise without asking he dumped some of this fuel treatment in my gas tank of my 2007 Harley Davidson. I was so shocked at this sight I didn't know what to say or know what that blue bottle of stuff even was. Dropping the bottle into my saddle bag he told me -Go fill up, go for a ride, read the instructions on the bottle before you fill up. If your mileage is no better or you don't notice anything give me your cost of fuel and food for the whole day I will pay for everything." So I topped my tank to full 3.3 gallons and rode to the coast. Instead of 80 miles from a full 3 gallon tank of gasoline 120 miles from the first dosage I was stunned. This motorcycle has EFI all stock no engine modifications. So I zero my trip meter, add more treatment, fill up my tank, go eat, and back on the road. 125 miles later speeds from in town to freeway I find a gas station and fill up again this motorcycle has never been able to get decent mileage, run this smoothly, and actually perform like this on the ethanol type gasoline easily getting 150 miles on a tank as long as I add this product as the instructions say. Also my Harley Davidson 2000 Softail Standard 88" Twin Cam has a carburetor and this product makes a world of difference used with clear or even 10% ethanol 92 octane gasoline. Ever since that day I have used this product in my motorcycles, vehicles, camp stoves, heaters, mowers, saws, and pressure lanterns. I can honestly say yes It will stabilize fuel for 2 years. True story I left a fuel system stabilized with Startron in a older vehicle with a carburetor with a full tank of gasoline that sat outside in the elements. This vehicle sat with the same gasoline for six years occasionally being started to warm up for 20 minutes to keep the battery up or to be just moved out of the way never leaving the parking area. The gasoline after 6 years sure it had a stale smell yet it was not rotten, carburetor was just fine inside, no crud or gunk in the fuel filters, no gunk or crud in my gas tank, and fuel line no problems. That vehicle didn't get any better or worse mileage on the 6 year old gas or even run funny I didn't expect that from any treatment or this one yet it happened. I personally wouldn't recommend anything over a year or two six no im not proud of yet im grateful this product helped it didn't cause harm. So if you have anything from your Power Equipment, ATV, Generator, Motorcycle, Tractor, your classic car, or anything else that you care about give it a try for storage so your gasoline doesn't turn into a varnished mess. Or better yet use it every fill up and keep everything running. I treat my "white gas" stove fuel with Startron my camp stove warms up faster burning just as clean as ever. I treat kerosene with Startron and wicks in my kerosene heaters don't get contaminated with moisture from storage or normal use keeping them burning clean safe like they are supposed to. This product says on the label exactly what it does and I can honestly say it really works. Cleaner burning fuel will help keep your engine oil cleaner and reduce contamination your engine will last longer. Carbon build up or deposit build up inside your combustion chambers and exhaust system will be reduced. Start with a clean fuel system with this product and it will actually stay clean. You will still have to replace a fuel filter yes your filter traps dust and debris. What I have noticed with fuel filters when I replace them is they are now just normally dirty from dust from the environment no more sticky gums or varnish. Spark plugs last longer is the other benefit of this product. This product does not clean dirty fuel systems yet it will not cause any problems or damage if added to a dirty fuel system from my experience. This is not a tune up in a bottle do not expect that read it closely. Tune your engine as recommended by the manufacturer and run this product. You might not notice any better mileage for the first tank full yet try again when you burn that second tank I am going to say that yes you will notice a difference especially on the highway or Interstate or freeway. Winter weather and summer weather this product works exactly like it says. Money is hard to make, engines are very expensive to repair, keep engines maintained as recommended by manufacturer, and if you use this you will notice that you will have a better experience which is not something that you can place a price on. Have some fun do some of your own tests or experiments with this product and share what it did or did not do for you because I am not the only curious person here. I am sharing my personal experiences with this product to hopefully help other people and hopefully learn more uses for Startron. Thank you for taking the time to read this review. P.S. I will probably add more to this review stay tuned. ... show more
Reviewed in the United States on April 5, 2021 by SSW

  • MUST USE !!!!
Had problems with my NEW pressure washer. The mechanic that worked on it for me gave me strict instructions for use & said I MUST use this product after every use. Will always have this in my tool shed from here on out.
Reviewed in the United States on September 12, 2023 by Barbara A

  • Game changer.
Definitely does what its meant to do.
Reviewed in the United States on September 26, 2023 by Randall A Browder

  • Best on the market for fuel treatment
I have been using this in my vehicles, boats and anything else that uses gas and is better than any other out their.
Reviewed in the United States on September 2, 2023 by BillJ

  • Worked fine
Car had not been driven in about 5 years. Added this to remaining fuel & it started right up & runs fine.
Reviewed in the United States on August 25, 2023 by locopete

  • Add this to all my lawnmower and snowblower gasoline
This product is fantastic. I learned about this from my local hardwarestore's repair shop. They swore by it as they have tested out all similar products. In addition to adding it to all the fuel I put in my lawnmower and snowerblower I also run Trufuel just prior to winterizing. The combiniation of these two things keeps my engines VERY happy. ... show more
Reviewed in the United States on July 24, 2023 by LAG7

  • In all my small engines
I have used Star Tron Enzyme Fuel Treatment in all my small engines for years. Have never had a fuel related problem using fuel with this additive. Seems to prevent small engine carburetor problems from ethanol based gasoline.
Reviewed in the United States on July 27, 2023 by DoninSTL

  • Best
I did a bunch of research, and this kept coming up as the best thing to keep your fuel fresh
Reviewed in the United States on July 21, 2023 by Steven

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