I found the opposite situation, but gas is produced regionally with a lot of variation so both our cases are anecdotal
Old days gas go bad after a while for me but the Modern ethanol blends in Saskatchewan let me abandon my trucks for over a year
I get in and crank and it’s fires up after the pump primes the carb
My old farmall starts even better it doesn’t care at all
Ethanol is a very stable molecule it cannot decompose spontaneously without heat or light so it makes sense
Ethanol can also be used instead of formaldehyde to preserve tiny things In glass jars but it’s not as great
Something else in the gas is breaking down and causing issues but it is not the ethanol
If ethanol could go bad you wouldn’t want to drink old whiskeys at the liquor store
-s
