Re: 2-stroke vs 4-stroke spark plugs;am I dreaming

[debe]

In relation to spark polarity in 4 strokes in particular. When I was a Ford mechanic the Falcon in Australia, ran 3 double ended ign coils for a 6 cylinder engine. The center electrode wore away quicker on 3 cylinders & the other 3 would still be good. This would eventualy result in the engine not running smoothly. The fix for longer life was to fit platinum plugs in these types of ignition setups. You then got 100,000Kms easily before replacing them.