Interesting , problems none, just turned 8000 miles, so for nothing, but you read all the stories, not doubting they didn't happen but when I am in a parking lot or whatever and a EcoDiesel is next to me I ask how is the truck?, never got anything other than great mileage no issues, mine is like there's nothing, so I guess this is like every other product forum you only hear rge bad, real or made up, and never the good. Some people have to complain, some people find a way to promote there cause or business, so far I haven't found anyone in person who doesn't like there EcoDiesel, I only have 8+k miles but its a great package so far