Can Fuel Stabilizer Kill Your Motorcycle? Comparison Test

Publisert 31. okt.. 2020
We find answers to all of your fuel stabilizer questions, so sit back, relax and soak it in. [Links below]

K100 :
Seafoam : Don't.
Sta-Bil :
Ipone :
STP : Available locally.
StarTron :

Cinematographer & Editor : Aneesh Shivanekar

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  • If you fill right up with minimal air space in the tank there won't be any water to absorb as the tank is not vented to the air in a modern evap controlled fuel system

  • Would you be able to drain the bike's gas and have it sit empty would that help?

  • I've watched every fortnine video more than twice never watching this thinking it wasn't relevant to me as i don't understand chemistry and live in a warmer climate but goddamn if this isn't one of the best ones. Thank you Ryan and Aneesh

  • Watching this again, just in time for Halloween...

  • I love this type of content so much makes me feel like I’m watching a movie sometimes defy my fav style of videos 🙌🏽👍🏽

  • Do one on fuel injector cleaner please

  • Reviewed 11 months later...still LOVE it! Great job! Would you consider a future episode of comparing non-ethanol fuels? VP, AV gas, and others? Thank you.

  • 5:55 Damn Dude! Time for a Deee-Frosting!!

  • You'll need Fuel Doctor.

  • The simple answer is not to store with ethanol gasoline of any type. In fact, I never use ethanol, unless it's the only option at the gas station.

  • So is it better to store the bike with an empty tank then?

  • this why i born in indonesia , no snow 😂

  • Great video and perfect timing! I am starting to think about bike storage and this is one of the things I wasn't certain about 👍

  • Dude this guy HAS to be the hardest working youtuber there is. Regardless of what the created content is specific for. He outworks dem all!

  • I put seafoam in a mint 2005 crf450r and it dropped a valve later that evening i never used that trash on anything else i own

  • “The Canada box”😂

  • I freaking love you guys.... Best motocentric channel out there!

  • well, I learned nothing has improved over Stabil

  • Great video: very informative. In the UK, one can buy fuel without ethanol, which is what I always use. Never had a startup problem after six months off the road, whether in a garage or outdoors.

  • Awesome, wont be buying seafoam anymore

  • Two questions, Ryan FortNine: One, will shaking the fuel by rocking the bike side to side or using a rod to agitate it cause the unsuspended water to resuspend, at least enough to allow combustible fuel to reach the cylinders? Two, is it better to fill the tank with fuel (displacing the air that holds the water) before storage or better to leave less fuel that you can then mix with fresh fuel in spring?

  • Love your videos man kudos to about one on octane boosters...

  • I logged in just to comment.... fantastic info and even better video!!

  • This is next level! Not safe for work lol

  • Won't fuel without ethanol be worse for storage? Pure gasoline absorbs little to no water. So condensed water will just sit at the bottom of the tank corroding or freezing. While E10 after absorbing a lot and after separation didn't even freeze in low temps (I'm assuming -18°C in that freezer?) and assuming corroded less than pure water. How about just increasing ethanol concentration for winter storage? Would absorb more water before separation...

  • Well done!!

  • Have had years of luck with using K100, I swear by it

  • My Harley xr1200x , 2011, has a plastic tank. E10 fuel has just been launched in the U.K. this week. What would you recommend to treat fuel for storage and daily use to minimise Ethanol damage? Keep up the good work from the colonies……😉

  • lucas injector cleaner

  • I swear is this an ARG?

  • How to winterize a honda: Yeah just dont ride it

  • Spooky stuff, man. I’m a year-round rider down here in Dallas, TX, where it rarely freezes (except for February 2021, ha ha!). Even so, I add a couple ounces of Lucas Fuel Treatment to every fill-up in all my vehicles. All my vehicles start up right away even in the coldest (Texas) weather. I always use Sta-Bil in the container with my lawnmower gas, because it sits the longest. This episode had lots of useful information, and was well presented, so thanks for the education. Happy Trails

  • Interesting. Been murdering my carbed bike for 13 years now. Start adding seafoam every fill up in october (premium), knowing any ride may be the last until april. Never had an issue. Heated storage, idle it 15 minutes once a month. Tank is spotless inside.

  • It's not too difficult to make your own ethanol free gas. Add water to gasoline, shake well, allow it to sit overnight, and drain the water and ethanol mixture from the bottom of the container. Water soluble food coloring in the water makes it easier to see the water ethanol mixture after it separates. If you don't want to mess with ethanol free gasoline, it's a good idea to fill the tank before parking the bike for the winter. The liquid is mostly incompressible. It expands and contracts negligibly as the ambient temperature varies. A tank of mostly air will expand and vent when warm, and as it cools, it'll draw in moisture laden air. The water vapor in the air will be absorbed by the ethanol in the gasoline. A hundred cycles of this over the winter will add a lot of water to your fuel tank.

  • I have been using about an ounce of seafoam in the 1 gal gas can, every time I mix up a new gallon of 50:1, for my Jonsered chainsaw for 30 years. It starts and runs fine every year and I have had no carb issues whatsoever.

  • i just use 2 stroke oil on my 4 stroke ATVs when i leave them for months

  • Fuel system cleaner do job better than fuel stabiliser

  • This is great proves taryl fixes all test correctly

  • 05:34 Dude 😂 awesome humor

  • They say that the best educational videos are the ones that entertain. Story is king when making a good video. This was probably one of the best I've seen in a long time. You took a topic that by all rights should be boring AF and made it great. Well done.

  • Stabil has three fuel stabilizers for gas, regular red, blue marine, and 360 gold. I do not think they are the same because they have different recommended recipe dilutions. I use only non-ethanol gasoline and I would like to know which fuel stabilizer is best for non ethanol gas. It seems to me some stabilizers exist to mostly focus on ethanol gas. I would like to analyze which fuel stabilizer is best for non ethanol gas.

  • There is less chance of moisture mixing in if you fill the gas tank to full, a Sta-bil run the engine for 5-10. Then store it. This has been working for me for my riding mower, trimmer, and my r1.

  • Run your gas tank and carb dry for winter storing... Done.

  • I quit using fuel stabilizer a couple years ago. It does very little. For storage the real key is keep your fuel tank full, do not allow air to contact fuel. If there is not water to extract from air, then there is no problem. Fuel tanks are vented, but this is not significant source of air to become water in fuel. I run the carburetor dry prior to storage. Conduct this test. The evidence is my bike starts every spring.

  • I wonder how Amsoil Stabilizer would perform.

  • Cheers Mr Ryan and Co. Seen this just now (9months later) and my only comment is: pls just remember that you have followers all around the world. Meaning, some product you show and we may want to try - e.g. K100 - it is not readily available in EU/UK. Stay safe

  • What a plot twist. He was the murderer for not riding his bike enough and writing scrips instead

  • The BIG picture is the end of petrol vehicles. If they give us shit fuel that actually kills fuel systems we are forced to buy electric vehicles.

  • FortNine video, click like, then proceed to watch.

  • Star Tron Didn't hurt my moped for the winter and I used probably 10x more than I was supposed too.

  • Your videos are very well done 👍🏻

  • This is youtube Gold!

  • Seafoam may rust more but when it saves a carbon clogged engine its just gold.

  • So from researching gas stations in my neighborhood I've learned that shell 91 octane or higher does not contain ethanol and this is the fuel I put in my bikes,seadoos and anytime I store gas. I've had no fuel related problems so far. Just fyi.

  • Best winterizing for Canadians is to ride to Florida.

  • Chandleresque? :-)

  • I just fill my tank with fresh gas and let sit tel summer.

  • So wait. Alcohol blended petrol is bad because the alcohol apparently reaches outside the fuel into the air and sucks water from the air into the fuel, and that water eventually separates out and causes problems, so we add a fuel stabilizer which contains, among other things...alcohol? Did I hear that right? And anyway, back in the olden days when we had no alcohol blended gas, every farmer, country household, and every suburbanite kept a bottle of Heet around, for dissolving out water in carburetor bowls and fuel lines. The main ingredient in Heet? Alcohol, of course. So apparently the more alcohol the better. But alcohol in your gasoline is bad, we are told, and so what do the people who say alcohol is bad say we should do about it? Add yet more alcohol? Of course! If anyone truly understands this stuff, then I’ve yet to hear the full explanation. Every time I see a new video on this, I am more inclined to think that it’s BS, that there is a large gap, a chasm if you will, between having the ability to make nice videos and know a lot about engines on one hand, and having any real scientific knowledge or understanding of basic chemistry on the other hand. Apparently though, we should be using alcohol as a desiccant because it really mops up the water out of the air, like from ten feet away or more, by some magic force field, molecular level tractor beam, sort of action...thingy. Bedouin tribespeople traveling in the dessert could carry large flasks with a little bit of pure alcohol in the bottom, and end up with gallons of water, just by exposing that little bit of alcohol to the air. Quite frankly at this point I am disinclined to believe anything anyone says on the matter.

  • My '78 Suzaki GS550E and '14 Yamy R1 both sit outside all days of each year in Chicago weather. The only protection from the elements are their covers. I don't use any fuel additives. I fire them up at least once a month when the temperatures are above freezing. No trouble starting up for either one so far. I've had the Suzaki since 2011.

  • I heard Amsoil Gasoline Stabilizer is the best

  • Should I just store it with an empty tank?

  • I used one by Liqui Moly, that my mechanic sold me, wish this had been in here.

  • does alcohol make water burn?

  • Who puts E10 in their bikes? Not worth the pennies saved.

  • What about Green Sta-bil? That's what I've been using for years.

  • I know I'm late to the comments party. Buuut.... I cant help it. " All work and no Play makes Ryan a dull boy " " You can stay with us Ryan, for ever, and ever and everrr " 😁😬😐

  • I don't use Seafoam as a stabilizer, as we ride year round here in Florida - but I do run it through my tank every once in a while. When I bought my used, low mileage, but older Shadow 750, the carb was a bit scuzzy - and two tanks of fuel didn't improve it much. But adding 6 ounces of Seafoam to the 3rd tankful did the trick in about 100 miles - no more off the line stumble or hesitation. No, I wouldn't leave it sitting in my tank over a winter, as I've heard of the oxidation issue, but as a fuel injector/carburetor cleaning treatment, I think it's a pretty good product.

  • Well what i do is make sure the tank is just about empty and then fill it up with true fuel. Zero ethanol so no chance of water collecting!

  • I store my bikes for 2 years at a time with NO stabilizer.....never had this problem. Used 5 year ikd unleaded in my probs! Just make sure you leave at least 2/3rds of a tank full.

  • My Harley is fuel injected and will start right up even after being stored for quite awhile (if the battery is charged up)... My sport bike has carbs and if I leave it for a couple of months, I need to get the carbs overhauled since the damn ethanol that they contaminate our fuel supply with around here just ruins the carbs...

  • Use race gas for Canada 🇨🇦 vp110

  • Hey, Hollywood, pay attention....

  • I’ve used stabilizer. for years now when my bike goes into storage. Never had a prob

  • Glad to live in Southern California where I don't have to worry about storing my bike for the winter.

  • This is henceforth my favourite forensic mystery, It's the best

  • Would love to see how PRI-G performs. I've used it for years and either it's good - or I've ben lucky.

  • Really excellent! I only wish you had tested more additives such as IsoHeet, Pri-G and Lucas to name a few. There is SO little research on the topic of gas stabilizers/preservatives. Interestingly a few of them are manufactured by the same company under different names which is a bit suspect. From what I can gather, the best results for preserving gasoline usability in storage are obtained with ethanol-free high octane gas in a high quality tightly sealed metal container filled as full as possible to exclude air and moisture and reduce oxidation. As a decrease in octane is observed with storage, starting high seems prudent. Maybe you would recommend adding Sta-bil as well, or not necessary if not using E10 fuel? If one can't get ethanol-free gas, or add sufficient methanol, aka wood alcohol, to counter the effect of water in the gas, then it especially important to use a proper container, fill it as full as safely possible and seal it air tight promptly. I don't know anything about motorcycle gas tanks, or if the above makes sense for your purposes, as I have no idea if keeping a full gas tank over the winter is safe or wise, or if it would be best to siphon off the gas to winterize the bike. New subscriber. Thanks!

  • Or, you could just fill your bike’s tank with some Sunoco Unleaded Race Fuel (95 Octane) at the end of the riding season 🤷🏼‍♂️🤘🏻

  • If possible start your bike a few times a week while it's not going to be ridden.

  • Fresh tank of non-ethanol fuel and attach the battery tender.... never a problem in 35 years of owning my bike.

  • Drain the carbs and gas tank before storing would be the best option

  • Love the video guys awesome glad I use sta-bul for winter storage lol

  • The problem is ethanol, not fuel additives. It’s illegal to add ethanol to fuel in Australia unless it’s labeled on the pump. I store my bikes when not in use with clean fuel, no ethanol or additives and they start first time every time.

  • Entertaining and informative. Thank you. I need to watch again

  • Just saved me money.

  • Im problem preaching to the choir here but there is a brand called VP lawn guys use it to keep fuel stable throughout the winter its free of ethanol and will keep all winter with no problem as long as the tank is full its only downside is its expressive.

  • Ever heard of kerosene...been mixing it with fuel for decades, works wonders in all conditions....test it and see, cheers :)

  • Project Fort

  • But who was phone?!

  • 6:28

  • Amazing just amazing wow

  • Here's what I've been doing for years to combat this; I put the Sta-bil in my tank, mix it up then let it sit for about 5 minutes to let precipitates fall out. Then I start the bike and let it run for about 5 more minutes to burn all this stuff off. That way, there's no water or other badness sitting in the bottom of my tank all winter.

  • What about an E0 fuel, can it benefit from any fuel stabilizer ???? To keep stored in a drum for a few years???

  • so you're saying i should drain my tank before storage

  • My biggest question what about the marine grade of sta-bil? How would that compare?

  • I really enjoy Fort Nine videos but this "test" doesn't gel with reality. I've worked at a bike shop for years and have had plenty of experience with Star Tron. It flat-out works. Actually this past winter I didn't use any on my personal bikes because I forgot and I had the joy of rebuilding the carburetor on my generator and my dirt bike. So whatever it does it must be above the capabilities of the test that Fort Nine administered.

  • Startron....ouch!

  • Interesting.... I’ve been using stabilizers in my bikes etc for years and so far they always start. I’ve only used stabil and Canadian tire branded (which likely is same thing). However I also run them every month and only use premium fuel which possibly has no alcohol...

    • I'm no expert, but I've heard various mechanics over the years say that stuff is not great for your engine. Like you I also exercised my engines once a month during the winter months. Instead of a stabilizer I've been using Heet dry gas, or water remover, whatever they call it these days. Been working really good for me, couple ounces and I let it sit in the tank for about 20 minutes. Engine starts in an instantly with authority. But like I said I'm not an expert for all I know it's the same s***.

  • Loh

  • Next we need to talk about the cleansing agents they recommend to add during oil change.