I’d look elsewhere for the cause of your universal “ethanol” problem.
There are plenty of reasons that pure gasoline is better in many circumstances and even more myths.
Pure gas will varnish up eventually too. Neither E or No E gas will do that in weeks or even a few months under normal circumstances.
E10 or ethanol in general, absorbs moisture. Far less of an issue in TX than other places.
Ethanol is more corrosive and/or a stronger solvent. It could be eating up old rubber lines and hoses, slowly which could be part of your issues.
Assuming these have been repeatable occurrences, your fuel storage containers or old fuel lines (in the truck) or ???? Are likely where you should concentrate.
Ethanol is not as evil as some pretend it is, however it does have some disadvantages that are more of an issue than pure gas when fuel begins to age or is stored questionably.
If its varnishing up you think in that short of time, you’d smell it.
And if it has kept happening repeatedly, did running pure gas cure it?
Sometimes random weird stuff happens. In your case, struck that gets filled at the gas station with lots of gallons vs a small tool that may be fed out of the same gas can for months, doesn’t make sense to have the same symptoms.
To the random weird thing , had a metal 2 gal can I used for the small 2 smoke engines. Always AV gas and quality oil. Somehow that can went sour and it would ruin a batch of quality premix, twice. Inside of a month, blue gas with blue oil (so it’s really blue, lol) would look and smell like it has been sitting in a junkyard gas tank for years…
Back to the smell, if it don’t smell right, don’t use it! (Could be said for many things….lol)
Be honest with yourself, if you were putting fresh month old gas in everything and burning it up in a reasonable amount of time, you almost assuredly wouldn’t be having frequent and multiple issues.
