NGK iridium IX spark plugs OK or is there a better brand?

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Trying to increase gas mileage- local 9-10mpg short hwy. - 13 long (100 miles) hwy.-25!

Aug 29, 2013

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What are the best Mercury repair shops?

RepairPal Certified shops can diagnose and repair your 2004 Mercury Grand Marquis. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

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NGK iridium IX spark plugs OK or is there a better brand?

What is your question?

Trying to increase gas mileage- local 9-10mpg short hwy. - 13 long (100 miles) hwy.-25!

Richus in Valley Stream NY

Aug 29, 2013

1 Reply

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TristanRealon Aug 29, 2013

Use OEM for the best results. Motorcraft fortunately is available at the aftermarket stores like carquest etc...

Richuson Aug 30, 2013

Thank you,will do.

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Popular Answer

What are the best Mercury repair shops?

RepairPal Certified shops can diagnose and repair your 2004 Mercury Grand Marquis. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.