Almost all spark plugs in this condition. Not sure if it is normal or not. The cars but on idle sounds like it wants to shut off but doesn’t.
Almost all spark plugs in this condition. Not sure if it is normal or not. The cars but on idle sounds like it wants to shut off but doesn’t.
21k miles and already on its 2nd set of plugs and they look like that? (Unless gm is using ngk plugs instead of delcos now…)