Sta-bil versus Pri-G

[papaof2]

I won't try to address "Which is better" just "How much does it cost" based on Amazon prices on 14 March 2023.

Sta-bil 1oz treats 2.5 gallons 32oz $12 $0.375/oz $0.15/gal

Pri-G 1oz treats 16 gallons 32oz $33 $1.03/oz $0.064/gal

Pri-G costs less than half as much per gallon of gas treated.

[biggkidd]

I've used Stabil all my life and it works well for me. I usually get it by the gallon or case of gallons. I get the green liquid for ethanol, marine 360 and have used 3 year old treated gas without issue.

[papaof2]

Oldest gas I've used was 2 years old, Sta-bil treated, plastic generic 5 gallon gas "can". Even worked OK in the two cycle engines (backpack blower and chainsaw).

I have a system for rotating fuel in multiple 5 gallon cans. When I purchase fuel, I treat it that day and add a P-Touch sticker with the date on it. I keep the cans in date order so I'm always using from the oldest can - unless someone decides to "help" me with those heavy cans and they wind up out of order. That's how I got 2-year-old gasoline. At least I got some real-world experience with treating gas and keeping it in a filled, sealed can.

My truck's gotten very little driving the past year or so - the better half would rather drive her Highlander. I added an ounce of Pri-G to the almost full gas tank so we'll see how well the gas survives when the surgeon does tell me it's OK to drive. I did drive back from getting a haircut oast month. Starting in the church parking lot - lots of room, defined lanes, defined angle parking slots - so almost like being on the road except for no traffic. I did OK in the parking lot - the better half was OK with me driving all the way home in her vehicle ;-)

When I can move that much weight, I need to check the generators - 20 minute test run with 1500 watts of heaters as load and a Kill-A-Watt to check voltage and frequency. Just can't get away from that maintenance stuff...

[feralferret]

"I have a system for rotating fuel in multiple 5 gallon cans. When I purchase fuel, I treat it that day and add a P-Touch sticker with the date on it. I keep the cans in date order so I'm always using from the oldest can"


I basically do the same, except I use Stabil and a piece of tape with the date instead of a sticker. I have had no problems with gas up to two years old, and the gas has all been the regular unleaded with up to 10% ethanol, not the more expensive ethanol free premium that is available in my area.

However I ONLY use the ethanol free for my two cycle gas/oil mix. I had the rubber in several carburetors ruined before I eliminated the ethanol in the two-stroke fuel.

I may try the Pri-G when my in use bottle of Stabil runs dry.