I bought a 2014 Mazda CX-5 AWD Sport with 102,000 miles on it and according to the service history, the transmission fluid has never been changed. I know my vehicle has the lifetime fluid in it, so should I bother changing my fluid now that the car is reaching 110,000 miles on it? The owner's manual says nothing about changing the transmission fluid but that's only up to 60,000 miles. I'm a little worried I'll change the fluid and then something will go wrong with the transmission. If I change it, should I do a drain and fill or remove the filter too?