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Iridium plugs
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<blockquote data-quote="ichiwan2" data-source="post: 40480" data-attributes="member: 153"><p>Four headed plug - a Bosch - I cannot remember the name. Not a great plug.</p><p></p><p>Iridium performance plugs will have the single head and a sharp pointed electrode with a 0.4 mm tip. </p><p></p><p>Long life iridium plugs have a 0.9 mm tip.</p><p></p><p>So far, I have seen iridium plugs made by NGK and Denso. Toyota's use the long life iridiums by Denso. (Brought in by UMW Toyota)</p><p></p><p>Normal bosch/beru etc have a flat topped electrode.</p></blockquote><p></p>
[QUOTE="ichiwan2, post: 40480, member: 153"] Four headed plug - a Bosch - I cannot remember the name. Not a great plug. Iridium performance plugs will have the single head and a sharp pointed electrode with a 0.4 mm tip. Long life iridium plugs have a 0.9 mm tip. So far, I have seen iridium plugs made by NGK and Denso. Toyota's use the long life iridiums by Denso. (Brought in by UMW Toyota) Normal bosch/beru etc have a flat topped electrode. [/QUOTE]
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