[ed cougar]

Thanks REDSC that helps, I still switched from the platinum to the regular autolite 45's. I pulled one out and it's still white looking I guess the only way to know for sure is to analyze the exhaust for A/F ratio. I know a lean burn can destroy a motor, no detonation or deiseling happens so I guess for now I'm ok. And you say your plugs also look white rather than tan, and one reply to my post suggested the methods of reading plugs are long gone with todays fuel. thanks again.