Many plugs claim many things. I've never seen any make any noticeable difference. Copper plugs are standard, platinums last longer, iridiums last even longer. That is about the only difference.
Type: Posts; User: Daox
Many plugs claim many things. I've never seen any make any noticeable difference. Copper plugs are standard, platinums last longer, iridiums last even longer. That is about the only difference.
How many miles on your spark plugs?
If the light comes back on again take it to your local autoparts store. I think they all do free code scanning these days.