Do I have to drain transmission fluid before adding Trans Tune? [SOLVED]

Do I have to drain or siphon out some transmission fluid if the fluid level is full before adding Trans Tune?

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Jim D.
Jim D.
1 year ago

As long as the transmission fluid is not overfilled, it’s okay to add Trans Tune without draining. Transmission systems have capacity for an extra 16 ounces. Just double-check to make sure it’s not overfilled according to the marker before or after…