![I guess my car has slightly wrong spark plugs installed. How big of a deal is it? I had to to change an oil fouled one and noticed that the new one I guess my car has slightly wrong spark plugs installed. How big of a deal is it? I had to to change an oil fouled one and noticed that the new one](https://external-preview.redd.it/-yGuwxWS01ppTKDXrXH6Lkp8G9kbe_SfAY5zfGwpDVk.jpg?auto=webp&s=084ca4f5101001e34e872690e3cce3ddc66e48a8)
I guess my car has slightly wrong spark plugs installed. How big of a deal is it? I had to to change an oil fouled one and noticed that the new one
![what could be the cause of the spark plug in cylinder #4 getting black? engine started misfiring and this was the cause. tried replacing it with a new one and the misfiring what could be the cause of the spark plug in cylinder #4 getting black? engine started misfiring and this was the cause. tried replacing it with a new one and the misfiring](https://preview.redd.it/6qlt90z8v5p61.jpg?auto=webp&s=ed910801f58c5f64c09e0bd961aa6c98152fbb01)
what could be the cause of the spark plug in cylinder #4 getting black? engine started misfiring and this was the cause. tried replacing it with a new one and the misfiring
![How to Diagnose and Fix Engine Misfire Code — Ricks Free Auto Repair Advice Ricks Free Auto Repair Advice | Automotive Repair Tips and How-To How to Diagnose and Fix Engine Misfire Code — Ricks Free Auto Repair Advice Ricks Free Auto Repair Advice | Automotive Repair Tips and How-To](https://ricksfreeautorepairadvice.com/wp-content/uploads/2012/06/worn-versus-new-spark-plug-1024x582.jpg)