How often do my Porsche Boxster’s spark plugs need to be replaced?

Worn spark plugs can cause a number of problems, including misfires, engine surging, trouble starting and sluggish acceleration, so it is sensible to replace them before their condition has deteriorated too much.

To avoid any drop in performance, we recommend changing spark plugs at the following intervals:  

• Boxster 986 (1996-2001): Every 24,000 miles or 2 years
• Boxster 986 (2002-04): Every 40,000 miles of 4 years
• Boxster 987 2005-07: Every 40,000 miles or 4 years
• Boxster 987 2007 onwards: Every 40,000 miles or 4 years
• Boxster 981: Every 40,000 miles or 4 years