The other day I was driving and developed a miss. I checked the plugs expecting the problem to be much more serious. I have the Bosch +4 platinum jobbers with the four electrodes. When I pulled #4, I found that the 4 electrodes were completely erroded away all the way down to the base of the threads. The other plugs looked fine. Anybody got any suggestions on what maybe the problem and is this an indication of another problem? The counter guys at the auto parts store hadn't seen anything like it.
The car is a 94 325 with about 130k on it with a Comforti chip and
runs great now and before.
TIA
Jake in Escondido