I can't speak to the effectiveness of the plus 4's. BUT, I can tell you I have personally run a set of Bosch platinums in a minivan for 100,000 miles. When we did change them (because we decided 100k is ENOUGH), there was little to no electrode wear. Those damn things are durable.
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I can sum up the clash of religion in one sentence:
"My Invisible Friend is better than your Invisible Friend."
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