If the transmission fluid level is high, do I need to drain fluid before adding Trans Tune? [SOLVED]

Thanks for the question, Felicia. Yes, that is correct. If the transmission fluid reservoir is overfilled a little, you will want to drain about 16 oz of fluid before adding Trans Tune. Warm up your Sequoia before checking to fluid level to get the most accurate fluid measurement.

If the fluid level is not overfilled, you can just go ahead and add the Trans Tune without draining anything. There’s plenty of capacity for 16oz of Trans Tune if it’s not already high.