On Sun, 13 Mar 2005, HarryS wrote:

> I buy the OEM Champion the cheapest plugs for all my vehicles and change
> them out at each 30K. The truth to be known there is no proof that a more
> expensive plug provides better performance

Nobody said it did.

There are more expensive plugs that make engines run worse and don't last
very long (Splitfire, Bosch Platinum, etc.), but there are also more
expensive plugs that make the engine run properly over a longer period of
time.

Go back to sleep, now.