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Home >> Ford >> 1987 >> Thunderbird Base, 5.0 F >> Repair and Diagnosis >> Maintenance >> Procedures >> Maintenance Information >> Maintenance Service Information >> Spark Plug Service
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Spark Plug Service

On supercharged or turbocharged engines with Platinum-type plugs, replace spark plugs every 60,000 miles. On all other engines, replace spark plugs every 30,000 miles.