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My one complaint with Stabil products is their marketing is confusing. I'm never sure what's best, Red, Orange or Blue ? If Red works for 2 years but blue and Orange for 1 year, why not use red? They introduced orange Stabil 360 in 2014 but I never understood the name "Stabil 360", did they really mean "Stabil 365" since it was meant for "year round protection"?

Now I see they got rid of Stabil 360 and its called "Stabil In Season" but at least it's still orange :unsure:
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I've been running all my 4-cycle equipment on 100LL aviation gas for years. It's storage life is years for me. I still put in Marine Stabil just because. This is real gasoline, no evil EPA additives. Your hands don't stink till the next day - it evaporates completely. Sure, it's over$5 per gallon here in the People's Republic of Illinois, but it keeps and starts again next time every time.

2-cycle fuel is different. I've had NO luck treating 2-cycle fuel to get an engine to run again next time. The only thing that works for me despite Project Farm's test and Chickanic's frequent warnings, is TruFuel. I only have a couple newer Asian POS engines with the little square carburetors, but those are least troublesome with TruFuel.
Hello KVacek. What airport or station do you get the avgas?
 
2-cycle fuel is different. I've had NO luck treating 2-cycle fuel to get an engine to run again next time. The only thing that works for me despite Project Farm's test and Chickanic's frequent warnings, is TruFuel. I only have a couple newer Asian POS engines with the little square carburetors, but those are least troublesome with TruFuel.
What Oil Mix are you using? I use Husqvarna XP and gas with Stabil. My 455 Rancher frequently sits over a year and starts right up. Same w/ Stihl leaf blowers.


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I've been running all my 4-cycle equipment on 100LL aviation gas for years.

Per AI, Avgas is less volatile and resists vaporizing into gas bubbles. The Reid Vapor Pressure (RVP) of aviation gasoline (Avgas) is 5.5–7 psi whereas automotive gasoline is 8 - 14 psi. Its lower volatility resists vaporizing into gas bubbles (vapor lock) in the fuel lines when the airplane climbs to higher altitudes.

I suspect this (and no ethanol) is why avgas has a longer storage life than auto gas.
 
Taryl's Test was on 10 identical, new engines, two were baseline with just e10 in one and non-ethanol in the other. All 10 were outside in a non-climate controlled heated or air condition and the test was done over 18 months. He would start each engine monthly. He also had jars with the fuel / additive in it and would also record how much evaporated. As each engine failed to start each month, they were sidelined for the remainder of the test. At the end, only the non-ethanol engine and one additive engine started at the end of the test. I'll try to find it and see which one survived.
 
Taryl's Test was on 10 identical, new engines, two were baseline with just e10 in one and non-ethanol in the other. All 10 were outside in a non-climate controlled heated or air condition and the test was done over 18 months. He would start each engine monthly. He also had jars with the fuel / additive in it and would also record how much evaporated. As each engine failed to start each month, they were sidelined for the remainder of the test. At the end, only the non-ethanol engine and one additive engine started at the end of the test. I'll try to find it and see which one survived.
I think it was the stabil that made it but it was still gummed up.
 
For me, everything (boat, chain saw, etc.) gets a sta-bil product and liquid performance together in one tank. My ATV/Motorcycle mechanic said use liquid performance in every tank. I winterize/summerize about 5 pieces of equipment

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Our E Free gas station is 40 miles away in Reno but that is nothing out here in the left coast. We take the trip once a month to save a couple hundred dollars. Gas here is $7 a gallon. In Reno it was $3.92 on Oct 4th.

Costco saves us 30-50 % on groceries. 2 burger meals here cost about $30-40. It's about $15 at In and Out burger for 2 meals.

The joys of living in California....

Shop local???? NAH!
$7?? Where do you live? I can't find that price anywhere locally on Gas Buddy. I'm in SLT, and gas is routinely $1.50 more than Carson City, but driving there just to fill up doesn't pencil out for me. After factoring in the gas to get there and back, the most I can save on fuel is $10-15, but we absolutely fill up during our tri-monthly Costco runs.
 
I've always used seafoam and marvel mystery oil in my fuel. never had any problems starting even after a year of storage. but my equipment is in a garage that stays above freezing so the constant temp drop and rise doesn't cause the fuel tank to breath in new air with moisture.
 
My one complaint with Stabil products is their marketing is confusing. I'm never sure what's best, Red, Orange or Blue ? If Red works for 2 years but blue and Orange for 1 year, why not use red? They introduced orange Stabil 360 in 2014 but I never understood the name "Stabil 360", did they really mean "Stabil 365" since it was meant for "year round protection"?

Now I see they got rid of Stabil 360 and its called "Stabil In Season" but at least it's still orange :unsure:
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Looked into this as well.

What are the Differences Among STA-BIL® Products? – Gold Eagle
 
So, it seems....

Stabil 360 is for everyday fill-ups to treat ethanol.

Stabil Storage is for gasoline that is stored a long time, meant for classic cars, etc.

Stabil Marine is for treating ethanol in marine engines and OPE.


Whatever happened to old-fashioned plain Stabil?

I don't use ethanol fuel, so i guess the best i can do for the snowblowers, ZTR and mower is use a mix of Marine and Storage...
 
I use Marine Stable all year long, most all my machines do not run during winter months. Have no fuel problems come springtime. Just battery charging.
 
I have used both CTC Motomaster stabilizer and Stabil over the years and have had no fuel issues with either product. I always used non ethanol fuel in my OPE gas cans.

However, since non ethanol fuel is no longer available in Ontario for the past couple years, I am only using Stabil now.

I'm sure the CTC brand stabilizer will also work fine with non ethanol fuel, but I will pay the extra few $ for Stabil, as I want the best protection. Ethanol fuel does not have the same shelf life as non ethanol and can cause so many issues with OPE engines.
 
I have used both CTC Motomaster stabilizer and Stabil over the years and have had no fuel issues with either product. I always used non ethanol fuel in my OPE gas cans.

However, since non ethanol fuel is no longer available in Ontario for the past couple years, I am only using Stabil now.

I'm sure the CTC brand stabilizer will also work fine with non ethanol fuel, but I will pay the extra few $ for Stabil, as I want the best protection. Ethanol fuel does not have the same shelf life as non ethanol and can cause so many issues with OPE engines.
I use Stabil marine now going on since ethanol was introduced 1 ounce per gal. . It has worked very well.
Saw a couple tests, one shown that none of them absorb very little water, the idea is the fumes from the treatment keep out air from entering the vents in the tank. All year long I use it. I do not use in my truck it does not set around like equipment, mowers, generators, edgers, saws, mowers, etc.
 
PRI-G for gasoline, including E-10 blends, offers maximum protection and reliability. As a proven enhancement to all gasoline used by marine engines, super concentrated PRI-G: improves ignition quality, provides engine and fuel system deposits, protects against E-10 phase separation, provides long-term fuel storage capability, and restores most degraded fuels to freshness.
 

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@badbmwbrad

That's a great question, and it gets to the heart of the "good, better, best" debate for small engine fuel. Using 100LL avgas instead of 87 octane pump gas is a bit like using a sledgehammer to crack a nut. It works, but it might not be the right tool for the job and can create its own set of problems.

Avgas is wonderfully stable and contains no ethanol, which solves the major issues of water absorption and fuel system corrosion that plague pump gas during storage. However, the "LL" in 100LL stands for "low lead," not "no lead." Small engines aren't designed for leaded fuel. Over time, that lead can cause spark plug fouling and build up deposits on piston heads and valves. The high octane is also entirely unnecessary for a low-compression snowblower engine and provides no performance benefit.

So, while you're solving the ethanol problem, you're introducing a lead problem. The most practical and recommended solution for most people is to find an ethanol-free pump gas if possible. If not, using fresh 87 octane with a quality fuel stabilizer is the next best thing. It's a far more elegant solution than risking lead deposits for the sake of stability.
 
I'm sure the CTC brand stabilizer will also work fine with non ethanol fuel, but I will pay the extra few $ for Stabil, as I want the best protection. Ethanol fuel does not have the same shelf life as non ethanol and can cause so many issues with OPE engines.
What is an OPE engine for us less smarter-er types :geek:
 
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