Is there a lubricant that will help valve clatter on acceleration?
Valve clatter, also known as detonation, spark knock, etc. is not a lubrication issue. It occurs when fuel spontaneously ignites, before the ignition spark fires. This results in the combustion explosion occurring prematurely, as the piston is still trying to travel upward. This also vastly increases combustion chamber pressure and temperature and can cause serious damage very quickly. No lubricant can help, rather the cause(s) must be diagnosed and corrected. For more information on valve clatter see our article Valve Clatter, Spark Knock, Pinging and Pre-ignition.