I have a 2015 Mazda 3 2.5l with 74,000 Miles on it. this model has a rare issue that around 80,000 miles it will slip. I am wondering if I should do a transmission flush. I have an uncle that is a transmission specialist and owner of the company and he will do the flush for cost of transmission fluid with dealers discount. this will be using a machine that he has for a flush. I have heard the doing a flush can cause slipping from reduced friction and im just wanting to take care of my skyactiv transmission. Also this car has been driven hard from the previous owner(my other uncle) and me. I just want expert advice to see what to do to keep this car going without transmission issues