When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
A friend of mine swears by this stuff -- and gave me a bottle. It's supposed to counteract the harmful effects of ethanol. We have 10% ethanol in most gas here, and Harley's service manuals say the engines can run just fine with that.
I haven't noticed any problems with the gas here, but added some enzyme treatment to my gas anyway. It hasn't made any noticeable difference.
I have been using Aces fuel catalyst in my diesel engines and i see now that they have a gasoline catalyst which I haven't tried but I do like their diesel treatment. I see about 10% better fuel economy especially during the winter months with diesel fuel. You can read more about Aces gasoline treatment here, I don't sell it or get any commisions from it, I like the product and again I have not tried the gasoline side of it but someone here may have. http://www.bndautomotive.com/page/page/931760.htm
I've got an older bike, with over 71k on it now. When I first got the bike, I tried some booster in a couple tanks. I believe it was from STP. Didn't notice any performance boost really, but I did seem to notice after the first tank with the booster that the engine became much more noisy (top end rattle and stuff).
I was of the feeling that maybe the booster had cleaned some carbon off the pistions/cylinders, and that could possibly have made it rattle more, just a feeling tho. After a few tanks of straight fuel, it was back to it's 'normal' sound. Didn't seem to affect the ping I was attempting to resolve.
I'm hearing it eats o-rings I saw an O-ring out of a 06-07 Harley fuel activator looked more like a d-ring,looking for more fuel additives he has one made by Star -Brite. I'm looking for both treatment as well as gaining my mileage back lost 5 miles to the Gallon.Only get MI per tank that hurts.Any advice??
I think the biggest problem with ethanol in gas is ethanol mixes with water the separates from the gas and settles to the bottom of your tank. The ethanol and water mix is corrosive. This mainly happens during storage. In the boating community it has cause a lot of damage, I know it got my fuel injection pump at $800.
Tarponrod nailed it...There have been alot of problems with the separation of water in snowmobiles too. Basically because of the long storage time. I have been running startron in my sleds for storage purposes, and have had no problems. I threw some in the scoot for storage this year too.
i have had great success using a small amount of synthetic 2 stroke oil. both my hot rods fuel needles were sticking using ethanol gas. the synthetic lubricated the needles and doesn't smoke.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
It sounds like there isn't much point using this stuff unless I'm not going to ride the bike (or other vehicles) for a while. Will fuel stabilizer fix the water separation problem? It's a lot cheaper than Star-Tron.
From what I have read normal stabilizer won't fix the water separation if you are going to store for more than a month. It's hard to tell what the "truth" is, but I'd rather spend the extra $$ for piece of mind. I actually put the startron in everything this year that needed to be stored for the winter. It doesn't take much, like an oz. to 6 gallons
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.