At what point in time should the plugs be changed. the car has about 71,000
miles on it. the plugs and wires and cap and rotar are all the orginal as
well as the plugs. The care runs great. Just norm maint has been done oil
every 3,000 and had a trans svc done at 60,000 a power flush svc. we are
going to do a coolent svc this week as well
