I've heard some good things about PRI-G as a fuel stabilizer. Anyone ever use it?

 

Is this the latest snake oil? IOW, doesn't really do anything except lighten your wallet.
We never had these problems until ethanol was added to gasoline.

 

Yep, must be latest snake oil. I've tried fuel stabilizers over the years, mostly in my boat that sits over the winter and in my 275 gallon storage tank. Never noticed a bit of difference in either. I don't use it anymore. The storage tank has held fuel for about 1.5 years before i use it and refill. It doesn't go bad during that time. The fuel stabilizer companies are just selling petroleum to add to your petroleum.

 

Actually, it’s been around a while but I’ve just heard of it. Supposedly keeps E10 gas stable for years and and can even reverse stale gas if it's not too far gone.It's been used in industry and marine for a long time.

 

Those are pretty tall claims. Sounds like a good sales pitch. As an indication the company is willing to make some wild claims I direct your attention to the very first claim on the label: "#1 gasoline stabilizer"
If it is the #1 stabilizer (whatever that actually means) why haven't you and I ever heard of it or ever seen it on a shelf ANYWHERE?

All that being said, I am a huge fan of the "try it and see" method. Why take the word of some schmo on the internet when you can see for yourself if it works or not. Buy a bottle, use it in whatever, but set aside two small jugs of gas (treated vs untreated) and every year or so pop the cap and give it a sniff. When one of them gets rank see how the lawnmower reacts to each. Report back. Most of us will probably still be here unless our government tries to kill us again.

 

Yeah, I'm going to do some more homework on it and maybe try it. I've been using Seafoam for decades as a fuel stabilizer for my old cars that go to sleep in the winter and I keep some around in case my snowblower gets temperamental with old gas. I was just looking for something that might do a better job, though. The people that use it are pretty impressed with it.

 

Used by the petroleum industry to keep gasoline fresh while in storage or transport, which may take months.

 

Spoke to the manufacturer earlier. After talking to them, answering all my questions and checking out various other sources, I'm pretty convinced it's a better fuel stabilizer than say, Seafoam, Sta-Bil, etc. Just ordered a bottle.

Interesting note from my conversation with Curtis at PRI, the stuff bonds with fuel almost immediately and is best when agitated. So best results are to add to a near empty take and fill up immediately. Curtis recommends doing it at the gas station for best mixing.

I mentioned that I've been using Seafoam as a stabilizer for decades and asked his thoughts. He said, you'll never see a something like a hospital treating their fuel for emergency generators with Seafoam.

 

Seafoam, or at least its original formulation, is not intended for storage of fuel. The presence of water in the formulation should be the first clue.

 

AFAIK, Seafoam's contents are, Pale oil, Naphtha and Isopropyl Alcohol.


What do you consider a good a stabilizer?

 

That last CAS that I saved for SeaFoam included water as a potential ingredient, possibly from adsorption.

I'm not sure there is a "good" stabilizer. My opinion is that the best protection is a completely sealed system. Fuel can separate in long-term storage, but if the system is sealed the more volatile fractions will not be able to evaporate and escape. I've recovered quite a handful of older vehicles, engines, and implements which have had fuel system problems. Completely sealing the tank with a non-vented fill cap, verifying a functional EVAP system, and the addition of 2-cycle oil to the fuel has been successful for me.

 

Could have been water captured by the IPA.

There is a Youtuber called Taryl Fixes Everything or something like that. He did a 19 month test with all the fuel stabilizers, (he calls them snake oil), with 12 small motors and E10. He started them once a month and noted how they ran and removed the fuel bowls for examination. Pretty interesting if you can get past his schtick.

 

Here he is. It's long, but the bottom line is ethanol will eventually give you problems where pure gas won't. Maybe not in 6 months, (for some of them) but certainly in 19 months. It convinced me that maybe Seafoam isn't the best stabilizer. He really liked the PRI-G though, more towards the end of the video.

 

Okay, I've switched over from Seafoam to PRI-G as a stabilizer. I'll let you guys know in the Spring. I have been unhappy with the Seafoamed preserved gas in my cars for the past couple of years.

I think Seafoam is a good cleaner but perhaps a mediocre stabilizer.

 

Watch this guy for more reviews on all types of products. Seems to be more authentic then Taryl.

 

Yup, I watched that. Very interesting. Sort of confirmed what I have been suspecting.

 

Also....

I treated all my cars with PRI-G and put them away. Then suddenly, we get a week of good weather so I took the Formula out for a few days. The Q-jet on it needs a rebuild and sometimes suffers from "morning sickness", hard starting, poor idle, etc. I noted that with the treated gas, it started much easier in the morning, ran smoother and idled better.

But full report in the Spring when I wake up 5 stored cars.

 

Coincidentally, you must have seen that just after I did.

https://www.thirdgen.org/forums/auto...ml#post6574720

 

1,000%! If we had access to pure gas and not ethanol blends, this would not even be a thing.