XPost: alt.home.repair   
   From: kludge@panix.com   
      
   RonTheGuy   wrote:   
   >   
   >I think the ZDDP is "good stuff" for engines but it will kill the cat.   
   >Right?   
      
   If you have flat tappets, it's a good thing.  If you have a modern engine   
   with modern valves, it's superfluous.  It should not be a problem with a   
   well-designed catalytic converter.  ZDDP was in oil for many years with   
   converters in place.  But there's no reason to add it for engines that do   
   not need it.   
   --scott   
      
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)