Denso Iridiums w/less than 50,000 miles

[jabartram]

4 of the 6 of my 12.00 dollar a piece Denso Iridiums looked like this, electrodes gone, i'll never buy them again. i'm trying E3's this go around.

after doing some checking these are recommended to be replaced around 30,000 miles. still never expected this.

[WhiteV6]

That can't be normal. Stock 3500s come with iridium plugs and they don't look anything like that on the used heads I have received.

[CactusWill]

I'd stick to the stock AC delco iridiums that are manufactured by NGK. Can't go wrong with those, and they run about $5.99 a piece.