Just got back in, checked my mileage again since i put the Lubegard in the other day,,got 17 mpg, its up almost 1 mpg, now I have a range of 550 miles easy on the van. The dealer put all mopar parts back in it, so this tranny should last. I also got a new tranny cooler installed. So, when u go somewhere to have it flushed or pan drop, make sure they flush thru the cooler, my old one was clogged , thus my tranny died due to heat which kills 99 percent of all tyranny's. I read all the testimonials on the lubegard webb site. Im usually not real big on oil additives, but this one worked and the OEMs only recommend this product period for tyranny's