Have been getting gas at same place for 20 yrs. No ethanol all along, but they changed a few months ago and I didn't notice. Not until my trimmer fuel line disintegrated. With the clean air regulations, and the price breaks to the oil companies for using ethanol, more companies are going to ethanol. Keep an eye on your supplier for changes like that. Anyone in an area that has only ethanol or other type additives, and no plain gasoline? If so, how do you fuel your small engines?