Thread: Poll: How long before changing spark plugs?
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Old 08-15-2006, 10:32 PM
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Re: Poll: How long before changing spark plugs?
I just replaced mine a couple of weeks ago, a 3.5 liter with 52,000 miles on it. I know they are good for 100,000 miles, but I didn't want to take a chance on plugs seizing up in an aluminum cylinder head. So I replaced the plugs with original AC Delco, and put a little anti-seize on the threads. Ran a compression check at the same time. The lowest was 200 and the highest was 210.