Does Trans Tune work in an automatic transmission if the car is idle and running but not driving? Also would being parked and switching between park, drive, neutral, reverse, etc. have any affect on it doing its job better?
Does Trans Tune work in an automatic transmission if the car is idle and running but not driving? Also would being parked and switching between park, drive, neutral, reverse, etc. have any affect on it doing its job better?
Those are great questions Derek. Yes, Trans Tune will circulate and clean as long as the engine is running and you’re able to shift into different gears. Shifting is what allows the fluid to circulate through the trnasmission.