Trans Tune for transmission slip [SOLVED]

2007 Boxster S, 28,890 miles, sat in air conditioned garage for over a year. Transmission slips a little. Sea Foam Trans Tune or full fluid change? Thanks!

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Jim D.
Jim D.
1 year ago

Good question, Patrick. Here’s what I’d recommend:

Add Trans Tune as a pre-flush and drive it for at least 100 miles.

Then change the transmission fluid, and use Trans Tune as an additive. Trans Tune will continue to clean and condition for the life of the fluid.