Originally Posted by mrphotoman
The idiots at advance auto did not order them yesterday like they said they would. i told them to order them AGAIN and they promised they would be here tomorrow. I was not too happy, hopefully i can get them in tomorrow.
What kind of mileage can you expect out of copper plugs? Do you "read" your plugs often? The NGK IX plugs seem to get good reviews, so I am just curious about the potential incremental benefit to using copper ones... the only downside being more frequent change intervals, from what I gather. TIA!