u/Hot_Engineering_9713

A little context I have a 2022 nissian frontier with 49,000 miles, I tried to call nissian and ask them for a quote for a drain and fill (I don’t wanna do a flush) because of the sedimentation that gets loose and causes more problems, they guy on the phone told me that the flush is safe and they use some special machine now and have had no complaints…however! I don’t trust that. He quoted me a decent price at 400 something, I just wanted to get anyone’s thoughts on this method or what I should do.