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High Performance OEM Replacement Platinum Spark Plug (Pack of 8) Review

3

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Poor

Revainrating 2.5 out of 5  
Rating 
2.3
🧯 Ignition Parts, 🛠️ Replacement Parts

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Description of High Performance OEM Replacement Platinum Spark Plug (Pack of 8)

Lincoln Mark LT. Lincoln Navigator. Mercury Mountaineer. Ford Vehicles.

Reviews

Global ratings 3
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  • 4
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  • 3
    1
  • 2
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  • 1
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Type of review

Revainrating 3 out of 5

Spark Plugs Disappoint in Automotive Performance

As a hesitant buyer, I purchased these ignition parts for my car, hoping to improve its performance, but unfortunately, the Motorcraft SP509 Spark Plug Pack didn't meet my expectations. As a result of my tests, I determined that the spark plugs failed to deliver the necessary combustion for my engine, leading to decreased power and fuel efficiency. The only pro was the easy installation process, but that hardly compensates for the overall lackluster performance. Stay away from these spark plugs

Pros
  • High-quality spark plugs that are manufactured by Ford's Motorcraft brand for reliable performance
Cons
  • Some users have reported difficulty with installation due to the design of the electrode

Revainrating 2 out of 5

Fixed wobble/stutter in 2009 F150 5.4

Purchased for 2009 5.4 F150. I replaced the old spark plugs (same model) that I believe were in the truck with the new ones. I had a slight hesitation/stutter at 50-60 mph. After installing these plugs the problem went away. Plugs are no problem at all. They were all brand new in boxes and in 100% working condition.

Pros
  • Convenient item
Cons
  • Available in black only

Revainrating 1 out of 5

One of them has already been replaced

At the moment, a plug has already been found to be defective. It's been almost two weeks and we've already replaced the broken fork with a new one from the local O'Reillys so we'll see if the other forks hold up. I'm not happy with the purchase as it has to be genuine Motorcraft and I don't want to make the other 7 plugs a month.

Pros
  • One year probationary period
Cons
  • There are defects