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      12-22-2012, 11:38 AM   #1
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Drives: 2013 F10 M5
Join Date: Aug 2012
Location: Middletown, Delaware

Posts: 35
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Spark Plug Change

Hey folks -

When would you consider changing your spark plugs? To refine my question further, I am not asking when does the manufacturer recommend it but rather when is it reasonable to change it? I have 46,000 miles on my 08 M3 and I baby the car in the event this impacts the responses to this question. Thanks for your input in advance!
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