Oil Seal Repair Additive on 2004 Subaru Forester

I have been told the rear & front oil seals need replaced in my 2004 Forester. I found some oil additive that says it can repair those leaks. Does this work and will it have any adverse impact on the Subaru Forester?

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1 answer 1 comment
very temporary even if it works. you are much better off considering the repair.

Thanks so much for your reply!