Spark plugs

Asked by Emezzy116 Oct 21, 2018 at 08:13 PM about the 2001 Mercury Grand Marquis LS

Question type: Maintenance & Repair

How often do you need to change the spark
plugs on a 2001 mercury grand marquis LS

1 Answer
159,045

Bob answered 6 years ago

Original equipment was platinum spark plugs. They are good to 100,000 miles. Make sure to use platinum plugs when you change them.

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