Went from Mobil 1 ESP 5w30 to Valvoline Restore and Protect 5w30 and back to Mobil 1. Engine was no quieter and the oil looked the same when drained. My OCI's are 3,000-3,500 and I'll never go 5,000 no matter the oil. When I went to Valvoline Restore and Protect I did the filter change at 500...