>Multiple electrode spark plugs do not create multiple sparks. The extra >electrodes are there just in case the other ones fail. So in this case I don't see the reason to pay extra for fancy spark plugs for our Vanagons (content) when well maintained OEM plugs will do just the same. <<<SNIP Yes... BUT The un-shrouding of the spark and exposing it to the gas mixture has a desirable effect on efficient combustion. The Bosch +4 are better in this aspect than our OEM plugs. I personally noticed that my WBX runs more smoothly and more eagerly with Bosch +4 as opposed to the OEM recommended plugs. Chris. |
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