Bob, why would you run 100 octane aviation gasoline at $4.25 a gallon that you have to go to a specialized shop for when the engine was designed for 87 octane that you can find at any gas station for $2.87 a gallon (Current Ca. price)? You only need to use a stabilizer if the generator will sit for months at a time and the little honda needs very little stabilizer.
I am not saying I presently do (though given how little the Honda drinks, it would not be that extravagant), but I used to use avgas because I had an ample supply of it when I had fleet of floatplanes in Alaska, and a 500gal tank of 100LL at my disposal.
After using it a few times, it struck me how well it burned in everything, and how stable (by design) the fuel is. I would have gladly paid $4.25 a gallon to have avoided the hassles of removing, disassembling and cleaning the Honda carb, as well as having replaced hoses and diaphragms in other small equipment destroyed by ethanol in gasoline used in the equipment. It's NOT the octane that to my knowledge makes the equipment run smoother, BTW.
In the Lower 48 (when I moved to WA), I had several classic cars in which I burned the stuff (the lead was good for the valves) and year after year, I would just park them in early October after the driving season, and in Spring just turn the key and they would roar to life. Never a BIT of varnish or fuel deterioration. There, I had friends with warbirds from WWII who would give me the gas they drained each Spring from their expensive airplanes before the flying season that had sat in their tanks all winter. Some of the stuff was probably 2 years old before I used it-again NOT decomposition of the fuel, with no stabilizer needed to be added. I understood why they got rid of the old fuel. At $5000+ for a carburetor, they felt it was worth the expense of using fresh fuel.
In speaking w/ the folks at the small engine shop I buy my parts here in TX, they told me business for fuel-system replacements has improved considerably since ethanol has become nearly universal here in TX. I wish they would state on the pumps whether what we are buying has ethanol-instead ALL pumps post the warning, even if a certain station sells ethanol-free gasoline.
I'd pay the extra $1.50 a gallon without hesitation, to answer your question, especially when I consider that I've probably burned less than 20 gallons gasoline in my Honda and my small equipment in the last couple of years. That would mean I spent $30 extra to save myself at least that much in repair parts, not to mention down-time on equipment that I have $2000+ tied up in.
Edited by Bobinyelm, 27 February 2010 - 12:13 PM.