I bought a 14 accord sport recently. It has 99000 miles on it. The cvt fluid hasn't been changed. Almost all the miles on the car are highway miles. I talked to 2 guys at the honda specialist..One said that he would replace one quart at a time. But then when I called back the main guy said that was wrong and you can't do that and have to change it all. He was really annoying he said it was a roll of the dice. I could leave it or I could change it and just see what happens. It was a bizarre interaction. He seemed annoyed for no reason. So obviously that made me want to go somewhere else. I called my mechanic and he said it would be fine either way. He said if I change it it would be fine or If i don't it would be fine. He said he hasn't seen any hondas like that have problems even if they aren't ever changed. What do you guys think? I trust my mechanic but ever person I talk to has a different take. It stresses me out.