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gadgetball

Which Spark Plugs in a 2016 Lincoln MKT 3.5L

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Motorcraft SP-534? 542? 580? Something else? Does anyone know the difference between these?

Only performance mods are Air Raid CAI, TRQ Ignition Coils ICA64254

For best performance (without ruining the engine) what gap can I do? .030? .031? .028?

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2 hours ago, gadgetball said:

Motorcraft SP-534? 542? 580? Something else? Does anyone know the difference between these?

Only performance mods are Air Raid CAI, TRQ Ignition Coils ICA64254

For best performance (without ruining the engine) what gap can I do? .030? .031? .028?

 

Hi gadgetball. Best advice I can offer is to use the plugs and gap specified in the Maintenance and Specifications section of your Owners Manual. Personally, I would also advise sticking with the Motorcraft brand plugs, since some other "OEM" brands do not work and play well with Ford engines.

 

If you do not have your  Owners Manual, you can download the PDF version here: https://www.fleet.ford.com/parts-service/resources/owner-manuals/

 

Let us know how you make out and good luck.

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