I just heard a commercial for this new product that is supposed to be better then any synthetic oil. It's supposed to be used only once and automatically coats you engine and makes the cylinder walls like silk. It's also supposed to give you a noticeable difference in gas mileage and a 8 to 10% horsepower gain. I was just wandering if anybody had used this product and if they did is it legit.By the way, i believe the website is Lessfuel.com