How long does Trans Tune last? [SOLVED]

I have an unopened can of Trans Tune I bought about 2-3 years ago. Does it go bad if it’s sealed sitting in the garage? It has been in the garage in the hot summer and cold winter on a shelf.

 

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Jim D.
Jim D.
4 years ago

Hi Dan. Your can of Trans Tune is just like new. Trans Tune will last many decades if the seal is unopened. ¬†Even so, Trans Tune works best when opened and added to fluid. Don’t forget to use it!