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SPARK PLUG GAP1999 Mazda Millenia 2.5L MFI DOHC 6cylThe Spark Plug Gap

.044 (In thousandths of an inch)

WRONG, WRONG, WRONG. read the question. Mazda millenia 'S' notice the S? the S engine is NOT a 2.5. it is a 2.3 miller cycle. the correct gap is .7-.8mm(.028-.032in). put in the wrong gap, like 1.1mm(.044in), and you will soon be buying new coils. about 174 each. times 6. plus new plugs, at about 12 bucks each, figger about 3 hrs labor. and NO, you cannot regap. if you do, then 174x 6 + 12 x 6 + 3 hrs labor.

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Q: What is the correct spark plug gap for a 1999 Mazda millenia s?
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