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Old 05-14-2000, 09:33 AM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
One of the secrets is not leaving the plugs in for 5-6 years. Even on low mileage cars the plugs should be removed & replaced every 2 years or so. Cleaning the threads is always a good idea if plugs come out hard or if in too long. Correct heat range is important.
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