if your tranny is fine after you change the TSS and change the fluid I wouldn't use any additive. Additive is usually to cure a problem (rough shifting, slipping, etc..)

If it ain't broke, Don't fix it.

96' ATX Zetec- stock 96' ATX Zetec- Modded Kenwood KDC-319 5.75"-2 MTX 12's Roady XT Custom door panels Mystique Cluster/oil pressure Getting repainted(in primer) Pre98 Lip SE skirts Mystique front lip dingless badgeless