engine noise

[duncan11]

My engine ticks on initial startup if it has been left for a couple of days or more, seems worse now the weather is cold. After a while the noise reduces , or if I drive off it is not audible. when engine is warm their is a very slight light ticking , but not at all when moving. Using Mobil super 3000 5w/40. I know about lifters draining down , etc, but is this a common thing what I am describing. thanks