Marine Stabil for non oxy gas

Putting in the last treatment for the season. I use non oxy always. The Stabil says for ethanol this should still work to keep the fuel fresh for the off season correct?

Is non oxy gas the same as ethanol free premium gas? I use ethanol free premium which does not contain any ethanol, and therefore a fuel treatment for gasoline with ethanol is not required.

gimruis wrote:

Is non oxy gas the same as ethanol free premium gas?

Yes. Ethanol is the oxygenation additive.

Even if you run premium it is a good idea to use a stabilizer throughout the winter. Even though it does not contain ethanol it can break down over time.

Reef W wrote:

<div class=”d4p-bbt-quote-title”>gimruis wrote:</div>
Is non oxy gas the same as ethanol free premium gas?

Yes. Ethanol is the oxygenation additive.

Thanks Reef. Lets call it what its labeled as at the pump. Ethanol Free Premium.

Yes. Ethanol is the oxygenation additive.

Thanks Reef. Lets call it what its labeled as at the pump. Ethanol Free Premium.
[/quote]

Near my house it’s called non oxy

Bearcat89 wrote:

Near my house it’s called non oxy

Ok then well I stand corrected.

Bearcat89 wrote:

Yes. Ethanol is the oxygenation additive.

Thanks Reef. Lets call it what its labeled as at the pump. Ethanol Free Premium.

Near my house it’s called non oxy
[/quote]

It’s labeled Non oxy at my pumps as well…

Some people think premium is non-oxy, which it isn’t unless labeled so.

IMO, Yes, use a fuel stabilizer even if using non oxy gas if storing over 6 mos.

Just curious why every one is so hung up on these treatments for which I consider short term storage. I do not have any college or technical degree in petroleum products only years of experience. In my experience if you use good fuel and are only storing for an off season there is no benefit to adding these products. If someone has a better answer I would love to hear. There are a lot of products that just make us think it’s cheap insurance.

ClownColor wrote:

Some people think premium is non-oxy, which it isn’t unless labeled so.

IMO, Yes, use a fuel stabilizer even if using non oxy gas if storing over 6 mos.

This is accurate. Not all “Premium” gas is non-oygenated or ethanol free. The pump must state this. Generally the pumps that say solely for use in small engines or collector vehicles that is non-oxy from what I have seen, but its not always listed on the pump this way.

Out of all the vehicles and engines I own including my truck, my wife’s car is the only one we use ethanol fuel. All other engines get non which is readily available once you know where to find it. I have been happy treating my stored engines with Seafoam for over 20 years although I used Stabil before that. No problems with either.

supercat wrote:

Just curious why every one is so hung up on these treatments for which I consider short term storage.

I’m just trying to avoid ethanol in engines that are only used seasonally. My lawn mower, outboard, and snow blower are all less than 10 year old engines and they are all 4-strokes. They get used for periods of time and then often sit there for months on end. Correct me if I’m wrong, but gasoline containing ethanol that is just sitting there for a prolonged period is not good for the engine. If I’m only using gasoline that has no ethanol in these engines, I don’t see a reason to use stabil or seafoam.

I run non oxy in everything except my vehicle, and I don’t add anything to fuel for “storage”, never had an issue. Ethanol will create a varnish build up in fuel systems, carbs, etc. and render them useless.

Had a 2005 Merc Optimax 115, ran non oxy in that as well. Only time it acted up is when I added Sea Foam, it would buck like a wild bronco until that crap was out of the system.

suzuki wrote:

I have been happy treating my stored engines with Seafoam for over 20 years although I used Stabil before that. No problems with either.

X2 Seafoam. Lawn Mower, Snow blower, Outboard, Generator all get Seafoam in last tank before storage. 2 years ago I used the Marine Seafoam and didn’t burn through the tank full of fuel last year. When I got the boat out this summer, gas smelled fine so I tried it and ran like a top. At $8 a bottle, I figure why not.

I do use premium non ethanol fuel in all of those engines.

Any gas will degrade over time. Personally I treat all the gas I put in my small engines and boats right when I buy it so I know I will get the max life out of it and to avoid any head aches. Sometimes you just don’t know how long that gas might be sitting without being used. 1 bottle of marine stabile lasts me about a year between the boat and small engines. Personally I find it cheap insurance.

Here is a quick article I found googling it:

Does Gasoline Go Bad?

gimruis wrote:

<div class=”d4p-bbt-quote-title”>supercat wrote:</div>
Just curious why every one is so hung up on these treatments for which I consider short term storage.

I’m just trying to avoid ethanol in engines that are only used seasonally. My lawn mower, outboard, and snow blower are all less than 10 year old engines and they are all 4-strokes. They get used for periods of time and then often sit there for months on end. Correct me if I’m wrong, but gasoline containing ethanol that is just sitting there for a prolonged period is not good for the engine. If I’m only using gasoline that has no ethanol in these engines, I don’t see a reason to use stabil or seafoam.

Correct if you are using ethanol, I never use ethanol in anything that sits. Ethanol only in automobiles.

supercat wrote:

Correct if you are using ethanol, I never use ethanol in anything that sits. Ethanol only in automobiles.

Same

supercat wrote:

Just curious why every one is so hung up on these treatments for which I consider short term storage. I do not have any college or technical degree in petroleum products only years of experience. In my experience if you use good fuel and are only storing for an off season there is no benefit to adding these products. If someone has a better answer I would love to hear. There are a lot of products that just make us think it’s cheap insurance.

Totally agree. For over-the-winter storage, I turn off the fuel petcock (if the machine has one), run the engine until it stops, fill the tank with fuel, and walk away. Haven’t had any issues, so even “cheap insurance” is bad insurance to me.

IMO the biggest factor is to run high-quality fuel, use filters/separators, and cycle through fuel. Never add new gas on top of 3/4 tank of old gas, burn out the old gas as much as possible before refilling.

TheFamousGrouse wrote:

<div class=”d4p-bbt-quote-title”>supercat wrote:</div>
Just curious why every one is so hung up on these treatments for which I consider short term storage. I do not have any college or technical degree in petroleum products only years of experience. In my experience if you use good fuel and are only storing for an off season there is no benefit to adding these products. If someone has a better answer I would love to hear. There are a lot of products that just make us think it’s cheap insurance.

Totally agree. For over-the-winter storage, I turn off the fuel petcock (if the machine has one), run the engine until it stops, fill the tank with fuel, and walk away. Haven’t had any issues, so even “cheap insurance” is bad insurance to me.

IMO the biggest factor is to run high-quality fuel, use filters/separators, and cycle through fuel. Never add new gas on top of 3/4 tank of old gas, burn out the old gas as much as possible before refilling.

This is my practice as well. Never have had a fuel issue due to fuel. Besides when I dumped old gas in to a auger thinking it was fresh.

Thanks everyone the gas I use is labeled as Non Oxy I’m not worried about about the ethanol but over time any gas will degrade. I plan to run this through good then disconnect the hose from the tank. Leaving the treated gas in the motor and fuel line. Every year I dump all the gas from the fuel can and use in the mower then dry the tank and good to go till next year.

I use this for several years and have not looked back. Works great for me and does not stink when it burns like Stabil. A lot of folks around here use it. I also use it when I have to burn oxy gas, non oxy can be impossible to find in some areas down here. I even add it when I do buy non oxy gasoline. It is not difficult to find. Menards often has the best price. Farm and Fleet, Walmart, Autozone, etc., carry it. It is not a new product. I have found 2 different concentrations, and they both work well. Check the concentration if you purchase, not that it matters as I stated, but so you can get your best moneys worth. It is not terribly priced.

Attachments:

1. 

   unnamed.png
   

mrpike1973 wrote:

Thanks everyone the gas I use is labeled as Non Oxy I’m not worried about about the ethanol but over time any gas will degrade. I plan to run this through good then disconnect the hose from the tank. Leaving the treated gas in the motor and fuel line. Every year I dump all the gas from the fuel can and use in the mower then dry the tank and good to go till next year.

I would be more worried about dried fuel lines if you drain them all. That happens fast

Bearcat I just take the tank off leaving fuel in the line and motor.

X3 on the Seafoam. Use it year around.

I dont like the smell of Stabil in the exhaust.

If you guys have a HPDI motor like a Merc Optimax, NEVER run the gas out of the motor.

I have had carb gaskets dry out in 4-strokes when the carbs were run dry. I personally do not do this any more.

-J.