10-24-2009, 01:09 AM
Harbourmaster wrote:
I remember seeing these sorts of issues when Bosch first released their Platinum spark plugs...
Haven't been spending much time here lately and missed your original post about the problem...
I was managing an auto parts store when the Boschj Platinums were released. oots of issues. Possibly the absolute worst plug you could put in a Buick turbo car for example, intensely hot but SMALL spark. Horrible for pre-ignition. And if the plugs heat range was cold enough to not pre-ignite, they fouled immediately.
Best bet is an Autolite double platinum. Standard plug design, but 2 platinum buttons where the spark jumps. Prevents spark erosion.
Those E3 plugs look like a redesigned Splitfire.