Ok, I was filling up the other day and there was a sticker on the pump that said contains ultra low sulfer diesel. Under that it said Something about It is a violation of federal law to use ultra low sulfer diesel in 2007 or newer diesel engines. Everywhere around here i have seen only low sulfer diesel, and am wondering what are the owners of the new trucks supposed to do? Is there going to be a nationwide switch in diesel fuel? or are these new engine owners SOL?