Beap52 1,692 #26 Posted October 11 No additives for me. If it has a carburetor, including the '71 El Camino and '57 Chevrolet engine in the '47 sedan delivery. it gets 91 octane zero ethanol. I try to drive both vehicles 600 to one thousand miles a year. When we had a boat, the mechanic said to keep Stabil 360 in it so I kept it in all my carburetor engines but finally weaned myself off of it. The first question local small engine shop asks if the engine isn't running correctly and it seems fuel related "Do your run ethanol or non-ethanol fuel?" My generator's fuel tank it kept dry. In the fuel line, I've "T"ed in a smaller container that I use to run the generator every month or two. Then I drain fuel out of fuel bowl. If/when I need to use the generator for a power outage then I'll fill the main tank. 2 Share this post Link to post Share on other sites
RED-Z06 2,684 #27 Posted October 12 On 10/10/2025 at 10:07 PM, Beap52 said: No additives for me. If it has a carburetor, including the '71 El Camino and '57 Chevrolet engine in the '47 sedan delivery. it gets 91 octane zero ethanol. I try to drive both vehicles 600 to one thousand miles a year. When we had a boat, the mechanic said to keep Stabil 360 in it so I kept it in all my carburetor engines but finally weaned myself off of it. The first question local small engine shop asks if the engine isn't running correctly and it seems fuel related "Do your run ethanol or non-ethanol fuel?" My generator's fuel tank it kept dry. In the fuel line, I've "T"ed in a smaller container that I use to run the generator every month or two. Then I drain fuel out of fuel bowl. If/when I need to use the generator for a power outage then I'll fill the main tank. When ethanol formulated fuels came out there was alot of fear mongering among manufacturers and shops. There were alot of fair fears and issues, and there was alot of false beliefs. When E fuels were introduced, the small engine industry was in a transitioning phase of emissions to fixed jet carburetors, that were lean. Ethanol was being mixed without much regard to end user percentages..while the target was 6% to 8% (but up to 10%), we actually saw percentages over 30% at pumps...and 30% will absolutely torch a 2 cycle, dissolve fuel lines, and swell inlet seats. We also saw the fuel distributors change their formulations to decrease emissions; more "stuff" was added in. Another subtle change and...I can't really see a justification for it, but..carburetor bowls became smaller, a smaller quantity of fuel will sour faster. But today, 20+ years after E10 went mainstream...we have generally consistent blends, and fuel lines can handle 10%, the additives are not great, just a ton of solids in it. Ethanol isnt a big issue, i can switch between E0 Rec fuel and E10 without any noticeable changes in how an engine operates. Alot has to do with how you store it though. 2 Share this post Link to post Share on other sites
Lee1977 7,418 #28 Posted October 22 (edited) It's just another scam, my understanding of it is they can't make enough ethanol for all the gas sold. You may luck up and get a lot lower ethanol then the 10%. The government requires it and they get payed if it doesn't go in. So being the end user you pay for it on every gallon. Edited October 22 by Lee1977 Share this post Link to post Share on other sites
