Fuck Cars
A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
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Hmmm, interesting. Looks like there's some fuel stabilizers that can preserve it for a few years (most of what I can find are for 1-3 years). I'm guessing the 5-year blend has a shorter shelf life once opened? The really interesting part seems to be that some of these stabilizers can be added to old gasoline to make it usable again. So as long as an organization had an utterly gigantic supply of stabilizer, they could potentially keep using gas for quite a while.
These stabilizers are definitely not in regular gasoline, though, so everyone except the extremely paranoid would be SOL.
Stabilizers are marketing BS, they can't rejuvenate old fuel and they generally work by introducing an additional component that reduces the ability of the fuel (mostly the methanol content) to absorb water ... however they rarely have a positive effect over all because they cause other problems.
Long shelf-life fuel is made in the refining stage. European standard E10 petrol can last a year or more if it's stored correctly ... I know this because I sometimes do store it for that long by accident.