They absorb any extra water such as from when fuel separate begins and moisture from the atmosphere, but there is a limit on how long this absorption works. Theoretically you would eventually run your engine and burn it off. If left unburned you have water absorbed by the Ethanol and water absorbed by the additive that breaks down to even more water. Think of it this way, if additives were the ultimate answer, it would be added-in at the terminal where the Ethanol is added to the non-ethanol gasoline.
"Adding CFM to a truck will only help at engine speeds you don't want to use." "I found there was nothing to gain beyond 400 CFM."
I have much less problems in my old trucks and my boat if I use ethanol free gas. I found this website which has a list of gas stations that sell ethanol free gas. I wish there were more stations that sold it. https://www.pure-gas.org/
Rich's Toys Our local Casey's had ethonol-free and about the time I wanted to fill up for winter they stopped having it !! Another way is gas up at the airport on 100 octane lo-lead no ethanol but would be expensive. I have used that in 2 cycle stuff and it worked fine,it's about double pump gas prices so that kinda bombed for now.
Since E free fuel has been offered in the PNW, I've used it in everything I have in WA and MT. Saves hard starts, draining bad fuel and carb rebuilds on everything. About 40 cents a gallon more, but even high octane could give me a pre Ignition knock every once in a while, but I also get a bit more MPG now.
'Rusto-Mod' '51 Chevy 3600 5 window C4 Corvette front/rear suspension & drivetrain Everything else looks old and stock
'92 GMC Sonoma GT #15 of 806 '91 GMC Sonoma GT Extended cab 1 of 1
I use non ethanol exclusively in my 2 stroke equipment. I will use ethanol blend in the zero turn during busy summer months when I know it won’t sit more than a few days at a time. But switch back to the non E in the fall.
New to the Stovebolt website, hello to all. When my 67 GMC Super Custom with 305E V-6 was running prior to the spun rod bearing which put it out of commission i ran regular w/ethanol also with no problems. I use to add lead substitute when I filled it up sometimes when it was available, made me feel better. Sometimes Id put in higher octane fuel for the same reason. Since my GMC is not running I'm driving my 66 Power Wagon w/318 using the same fueling habits -the lead substitute and it runs good. Makes sense to me that condensation could cause problems throughout the fuel system over time, hope the carburetor kits for these trucks are still available in the future.
67superc Welcome to stovebolt,used to take care of a fleet of Gimmy's ,I thought GMC was pretty sharp to put one little valve in the floor of the intake to get crankcase ventilation. you probably know to watch out for rocks getting thru the spark plug holes in those manifold pockets.