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Also your gap on 3 & 4 seem tight but it might just be the shadow in the picture. How much alcohol in the gas your using.


All plugs are gapped the same. They're NGK plugs--part# BPR5EA-L. I have no clue of the amount of alcohol that's in the gas I'm using, maybe less than most states. I don't fill up at any particular station or brand. It's wherever I happen to be when my tank is low.

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There are no indicators of running hot. They're just clean. They aren't glazed from excessive heat, and there's no indication of preignition damage.

The wear looks typical for a generic plug.

Replace and continue on your merry way.


Plugs have already been replaced with Denso plugs prior to smog test. I'll pull the plugs in another 10-15K miles and have a look.

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You just HAD to rub it in, eh? <img src="/forums/images/graemlins/angry.gif" alt="" />
Some of us would kill for numbers like that.


I try to keep my vehicles in OK condition. I've never had one that would fail the smog test. Hope I don't jinx myself next time around!