I hate to say this, but this is just another person putting his opinion onto the web. I find some of his "comments" inconsistent with that which has been recommended in the past by a major automobile manufacturer for their diesel engine cars. True that information was applicable to only certain year vehicles, but if you still owned on of those year of manufacturer vehicles, then the information that they gave out then, would still hold true today, even though this person in his humble opinion says that it has no validity. Personally, I would tend to believe information from the R & D of Daimler Benz over a individual. Draw whatever conclusion from the article that you wish, however I am just stating my own personal observations. Everyone is free to disagree and I am certain that many will. I am not trying to start a war. /forums/images/graemlins/blush.gif