When a customer brings in a piece of equipment and the fuel line is disintegrating and the diaphrams are turned to mush,what would you blame it on? The customer says he was running ethanol fuel and the manufacturer reccomends not using it. Possibly the barometric pressure was wrong that day or the planets were not aligned properly.I think when things go wrong, blame the gas. I've been using 87 octane with 10%ethanol in my car, lawn mower and snow blower ever since it was introduced. Everything is still running, but I probably just jinxed myself.