hi sirs, my ride is 2004 crv a/t 80,ooo kms mileage. i notice my fc gone down from 6km/l to around 5.2km/l after have my car changed oil ( from fully synthetic to regular oil), fuel filter, fan belt, a/t fluid, air cleaner replaced and spark plug (iridium) cleaned, . All parts are oem and service by trusted mechanics. Ano kaya naging problema dito? thanks for your reply..