Thread: '91 190E plugs?
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Old 07-30-2001, 11:33 AM
Posts: n/a
The H8DCO just has a little bigger center electrode and a little wider heat range than the H8DC. That and the "DCO" plugs are a bit better quality "Made in Germany" part. Bosch moved production of some items to various parts of the world a few years back. Some are fine, some are not. The ground electrode plating on the Made in India spark plugs is not good...lots of bubbles and flakes.
Randy D.
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