This winter during morning start ups I've experienced noticeable rattle coming from the top of the engine. I'm aware that oil drips down overnight and this may cause the problem. The noise dissapears few seconds after I start the engine. I happened not to drive the car for ten days. Whan I started it yesterday I thought that it will explode! Wow! Of course after less than 10 seconds it quieted down since the oil pressure built up. Are there any known problems causing this? My car is pampered. Oil change every 3K (Mobil1 5w30) Any suggestions? Please help before I take the top of the engine apart and find out nothing wrong....

Thanks...

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