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JST · 07-03-2021, 01:41 PM

Plugs are every four years on the 987, regardless of mileage. Looks like the S55 M3 interval is indeed every 3 years.

07-03-2021, 01:41 PM	#4
JST 195 Join Date: Oct 2003 Posts: 24,607	Plugs are every four years on the 987, regardless of mileage. Looks like the S55 M3 interval is indeed every 3 years.