My wife's trans is an auto in her sentra. SheS had it since day one, no issues. But it has 120k on it now, and I noticed when put in gear, if feels a bit more rough now days. Everything else is good... Is there an additive that would help? It's never been flushed and I'm afraid of a drain and or flush now days.
What y'all think?
What y'all think?