When to change oil after using Sea Foam [SOLVED] Asked by Jean-Guy T. In Quebec Should I immediately drain oil after I ran my car 30 kilometers with Sea Foam?
Hi Jean-Guy. We recommend adding Sea Foam 100-300 miles (or 160 to 480 kilometers) before the end of each oil interval. Whatever you do, drive at least 160 kilometers or until you need to change your oil. Hope this helps!