They've started to add ethanol to our gas here in New Jersey. I'm aware of the storage and moisture absorbing problems with this blend but worry most about possible fuel system damage. I own a broad spectrum of equipment with both two and four cycle engines, some high end (Hustler Z) down to a 35 year old tiller. Also vehicles including a classic British sports car. The folks at Briggs & Stratton didn't allay my fears much saying that officially they approve of 10% ethanol (they have to sell product), but that I should get conventional fuel if I can because the formulations are changing so fast that they can't keep up. They just don't know. My research indicates that ethanol causes deterioration of rubber and some plastics and corrodes nickel, zinc and aluminum. What are fuel systems made of anyhow? I know that in many other parts of the country they've used gasahol for years. Has anyone had any problems and in what age and type engines? I can still obtain conventional fuel from upstate NY and PA but must make a suicide run with a car full of gas cans. Even my oldest equipment has always been well maintained and dependable. These days when you gas up it's like poisining an old friend.