Best spark plugs for 2017 Elantra

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When I had the misfire issue it was intermittent. It ran normally almost all the time but occasionally would misfire. When the missfire happened, rasing the rpms a bit would clear it up. Assuming the car is under warranty, take it to the dealer. They'll replace the coils under warranty with that misfire code.
The coils are newly (
This was absolutely a fuel/timing issue, as both the issue and CEL have not returned since the one incident.
 
I have seen multiple reports online of coils having to be replaced more than once.
But were the updated white dot coils the ones in need of replacement, or were these reports regarding the old design (green/gray dot) trying to find the white dot solution?
 
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