Thread: Spark Plug Change Failure
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      08-07-2013, 11:07 AM   #16
Jamesons Viggen
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Drives: '98 M Roadster stg 2+ S/C
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Originally Posted by mocohead View Post
It is interesting to me that the spark plug change interval on the n20 is 30k miles, but 60k on the N55. Wonder why that is?
Higher boost pressures perhaps? The N20 runs about twice as much boost as the N55.
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