Thread: Spark plug age
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Old 01-05-2006, 07:34 PM
suginami suginami is offline
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Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,538
The actual factory recommendation on spark plug changes on your engine is 5 years or 100,000 miles, whichever comes first.

If the original plugs are still in the head, you are overdue.
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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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