I did not refer to the Consumer Reports article in my post. I referred directly to the actual full report in pdf form from AAA.\n\nI'm a learner in life. I try to learn things. I don't automatically know things or believe everything I read. I try to learn from as many sources as I can for accuracy. I'm not (or act like I am) the smartest person in the room.\n\nAfter reviewing the pdf report, scientific testing wins, but oil company website marketing still does not.