Originally Posted by
Ste
I have only used GM spark plugs in my 1.8. I did change them at 60K. The car is now on 149,000 and the spark plugs are still in. The old ones were in perfect order, so I haven't replaced them again yet. Maybe I should remove them and check, but that's another story. Gap consistancy and accuracy on the old removed plugs was fine, as was colouration and general condition.
The only things that I can think of for varying gaps would be, inconsistant gap when fitted (knocked during fitment), or maybe (just maybe) that is how they should be? I assume you mean triple earth type from the wording you have used?
Mine were single electrode. I wouldn't dismiss all GM plug just on the basis that you think you had a problem, which is not verified.... Hope that makes sense.
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