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2004 Mercury Grand Marquis Question: NGK iridium IX spark plugs OK or is there a better brand?

 

Question

Richus, Valley Stream, NY, August 29, 2013, 11:10
 Rookie

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

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  • Answer #1

    Real Auto Haus (111 Answers) , Westmont, IL - (630) 361-6756
    TristanReal August 29, 2013, 14:02
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     Journeyman

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

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    Richus, August 30, 2013, 11:20
     Rookie

    Thank you,will do.

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