[75Carrera]

Reading on several Porsche related blogs I see many comments about the low idle rattle the 3.6 turbo motors seem to have. It doesn't seem to a major concern by most posters. The use of M1 synthetic oil is favored by the factory we're told. Maybe that's fine but I also see many going with diesel oil as a path to reducing friction and quieting the rattle. I use the diesel oil (rottela), probably spelled wrong, in my air cooled car.
What do you think about both the rattle and the use of diesel oil rather than synthetics?
Of course you first need to be assured the rattle is not something more serious. Sounds like it's quite common and easily handled by use of diesel oil.