I know. It gets very "iffy" when you hunt data about real mpg results. Every manufacturer claims a lot, but it is hard to find any real world comparison data. Many reviews taut the LRR efficiency of the Pirellis, but it seems mostly speculation. Most state that the Michelins are the best, but fail to mention how much better than other brands. A price difference of $430 would offset a lot of lost mpg miles.