I have a V10 with less than 300 miles on it. It too smokes when I start it after a day or two, but I didn't think much about it since I also have a Ford Diesel I kind of expect it. My thought is that it is a good thing. This V10 has coated cylinder walls, steel cylinders in a aluminum block. By my way of thinking some extra lubrication on the first cylinder strokes is a good thing when the engines cold. Mine stops in a short time as expected. :clap: