I wanted to know you guys opinion on replacing such items as electric fuel pumps, fuel pump relays, fuel injectors etc., as part of a preventative maintenance program.
What things would you add to the list and what intervals would you recommend changing them. The reason I am asking because when these items fail then we are at a loss for time which is very valuable. It would seem easier to just replace items on a timetable - like oil and filters. (less often of course) Just wanted your opinions.