Just changed the plugs, 35k miles. Are the burn marks normal? All 4 plugs were the same.
Looked closely under a magnifier, didn’t see any cracks, just the discoloration.
It’s been a while since I have changed any plugs, however I don’t recall seeing this before.
Thanks.
Looked closely under a magnifier, didn’t see any cracks, just the discoloration.
It’s been a while since I have changed any plugs, however I don’t recall seeing this before.
Thanks.