Noise on Startup

Originally Posted by oneyellowboxster

Being in Minnesota, i.e. very cold, I have been using Mobil 1 5W30. Could this be the problem ? Should I always use 10W40 no matter the temp ? I have owned the car for 5 years. Seems it has always made this noise....Is it common ?
Thanks

Yes, I think it is common. Especially for cars that sit longer between drives. Like mine, that is a sunny-day-pleasure-car.

Please note the correct oil is Mobil 1 (One) 0W40...not Mobil 1 (One) 10W40.

As an FYI, I have been using 5W40 Redline oil since last Fall. I notice less (or at least I think I do) valve tapping at start-up then when I was running Mobil 1 0W40. I know this is not a Porsche approved oil.