oil tappet camshaft

Hi All, Just posted this because I thought this would be a very interesting topic to many of you. Extract from "MTA NZ Radiator Magazine, July 2009" - New Motor Oils Are Bad for Older Engines with Flat Tappet Camshaft<o:p></o:p> "The lobes on this 289 Ford Mustang flat tappet [Pic Below]...