1990 Mustang 5.0 lx Tremec T-5 oil type ?
installing brand new T-5 from Tremec (stock type) . Which type of fluid ? I think stock called for Mercon/Dexron II.. Was going to put in Royal Purple synthetic.. Did a search on the subject with no straight answer.. The Tremec websites states " most T-5 transmissions call for Dexron II "