Motor City Swagman wrote:
We usually spend the summers in Michigan and upon returning to Florida in the fall I fill the tank up (75 gallons) and treat the gas with stabil and it is good until the late Spring when it is time to travel. This year due the pandemic we cancelled our plans to travel North and I am concerned that the gas is reaching the 12 month protection limit stated on the bottle and would like to know if there is any proven ways to safely extend the fuel protection for another 12 months?
Thanks
From the Stabil FAQ:
I HAVE SOME GAS IN A TANK THAT HAS BEEN THERE MORE THAN 2 MONTHS. WILL STA-BIL® FUEL STABILIZER MAKE THIS OLD GAS LIKE NEW?
No, STA-BIL®Fuel Stabilizer will not restore or improve old gasoline. It will, however, stop it from degrading further. The best thing to do is treat the fuel with STA-BIL® brand as soon as you buy it.
Depending on the quality, type and source of the gasoline, as well as storage conditions, doubling the dosage rate of STA-BIL® brand could prolong this storage time to up to 2 years. However, any gasoline stored for more than 12 months will tend to lose volatility (ignitability), which could lead to hard starting or no start conditions after this long storage period. NO additive, STA-BIL® brand included, will prevent volatility loss in fuel. To reduce fuel volatility loss during storage, we recommend filling your tank at least 95% full with fresh fuel and STA-BIL® brand, and store in cool conditions away from direct sunlight if possible.
Stabil FAQ