Like most OM the regular duty OCI is 7500 miles ... For my Elantra PFI and Sedona PFI engines (both in good shape using Fram Ultra Filters + D1 / G2 5W30 syntheric oil) - for mixed , normal suburban driving in Georgia would you consider to run the EDGE EP out to 10K to 12K miles OR one year (which ever comes first ?) ... Previously I was using M1 or PP 5W30 for 6K mile / 6 month OCI's but thinking I could go longer on the EDGE EP oil. ...Your thoughts and experiences ?