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Spark Plug Type ?

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Old Jul 27, 2018 | 12:38 PM
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jmrgn59's Avatar
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Default Spark Plug Type ?

I have an '03 Grand Marquis with 59,000 miles. I would like to change the plugs. I'm leaning towards Autolite XP104 Iridium. I would appreciate any advice on that plug vs the original Motorcraft plug. Thanks for any help.
 
Old Aug 4, 2018 | 01:28 PM
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From: Phoenix, AZ., USA
Default Spark Plugs

The correct spark plug for your '03 Marquis is the BOSCH Double-Iridium -- Bosch part # 9606
DO NOT use any type of anti-seize compound -- lube the plug's threads with synthetic motor oil ONLY !!
Use a torque wrench to install -- at 12 ft/lbs = 145 inch/lbs.
Best price for these plugs is at RockAuto.com.
 
Attached Thumbnails Spark Plug Type ?-iridium-spark-plug-comparison.jpg  

Last edited by 95 MERC; Aug 7, 2018 at 11:41 AM. Reason: Add content
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