Has anybody heard the rumor that in some older cars, that platinum spark plugs can actually _reduce_ the mpg's and power of an engine? I've got really crappy gas mileage (See related message; Subject: New member to list) and I'm considering going back to the Bosch triple electrode/copper cored plugs that were in the car when I bought it. Thoughts anyone? -=Gary=- erickson@teleport.com