im curious if everyone changes all the plugs, wires, cap, rotor, pcv, & fuel filter once a year? cant any of these products last longer? i can see cap, rotor, plugs, filter & pcv but the wires should be fine right? i run $40 FMS wires wich should last through every other tune-up! im just curious if i can leave the wires go, they are one year old & my car runs great..........i know this may seem like a dumb question & i usually just change them all, but i have all my funds currently tied up in another project! just curious what you all have to say about this.