Old gas in 2024

[Donald]

I was told you stick your sniffer if the gas fill and if it smells like gas it's good but if it smells like varnish it's no good. Maybe but that does not sound too exacting.

 

[t_bilt]

PRI-G CB claims they can rejuvenate old gas. Or they did in marketing a year or three ago.

I emailed Chevron asking if that was possible and they said old gas has chemically changed and impossible to rejuvenate. Dilute yes.

So if PRI-G claims things that are impossible then I look elsewhere.

My experience with Pri-G... Outstanding product! I had 3/4 of a tank of seven+ years old gas in my boat. Storage... out of sight out of mind. The tank holds 60 gallons! What to do with approximately forty gallons of rotten gas... try Pri-G. I super-dosed the gas over the weekend. I added twice the prescribed treatment. I trailer-towed the boat around the block a few times to agitate the mix. The gas that weekend was pink and smelled like varnish. I didn't hold much hope. However, I pulled some of the gas from the tank on the following weekend and was shocked that the gas was nearly clear and smelled like fresh fuel. I then drained the carb bowls and ran all the rotten gas out of the lines. I then primed the system with the newly converted gas and fired up the boat with the water hose attached to the outdrive. I was amazed that it fired right up, the exhaust burn smelled normal, and I took it to the lake. We burned all that gas with no issue!
Not only will Pri-G convert rotten gas, but it also cleans carbon and will clean a fouled carb if you can get it running. The neat thing is it mixes with the fuel and doesn't lay on top to eliminate oxygen phase degeneration like Stabil and the other gas treatment stuff. When you mix Stabil you have to ensure the tank remains stationary so it will again separate and float to the top of the fuel to create its oxygen barrier. If you have a vehicle or tank that will be jostled around Stabil is not a good choice. Pri-G has been used by refineries and the marine industry for years. The first amount I bought was only available in 1-gallon size and up. Since then they've begun offering small cans. The mix ratio is crazy. It's highly concentrated. 1-pint will mix 256 gallons of gas. I buy it by the gallon. It doesn't hurt to overdose... Bottle Size Gasoline Treated...16 Ounces @ 256 gallons; 32 Ounces @ 512 gallons; 1 gallon @ 2,000 gallons. This all breaks down to 1/4 tablespoon of Pri-G per gallon of gas. So a little over a tablespoon will mix a 5-gallon can of gas. I usually use 1-1/2 tablespoons per five gallons and I use it in everything year around. It works well...

With respect to Pri-G several years ago I bought a boat that had been sitting for 5+ years and came across Pri-G. I emailed Chevron Tech Support about their suggestion. They said the gas has chemically changed and nothing would bring it back to good gas. I pumped all the gas out into 5 gallon buckets and let it evaporate. Might not do that again (let it evaporate). So I dismiss Pri-G claims. Additives can help prevent the gas from going bad but nothing will bring it back. Obviously you can dilute the gas unless phase separation has occurred.

No Worries... I have fairly thick skin.
All I can tell you is my experience... The 7 year old untreated gas in my boat was 2X treated with Pri-G and then run through with out a hesitation or skip. I had full power through the 40 gallons in the tank. After adding Pri-G the fuel went from pink and smelling like varnish to the color and smell of fresh gas. I saw it with my own eyes. I didn't add any additional gas to the tank... there was no dilution of the original gas other than the Pri-G added.

Pri-G also states it will preserve gas for up to 10 years... It never stays around that long in my world.

Pri-G converted the gas for me and has cleaned dirty injectors and carbs on everything from autos, trucks, ATV's, lawn equipment, Waverunners, and boats.

There is a reason the price has gone up so much since I first stumbled on it... word is getting out... supply and demand along with added marketing I suppose.

If you've never tried it, you should. If nothing else to prove it to yourself.

Pri-G is way better than Stabil IMHO.

 

[t_bilt]

I was told you stick your sniffer if the gas fill and if it smells like gas it's good but if it smells like varnish it's no good. Maybe but that does not sound too exacting.

I've always stuck to the same diagnostic tool... my eyes and nose. If it smells like varnish don't try to run it, convert it!