my lbz sometimes seems louder under the hood when first time starting it up in the day. exspecially the first mile. louder "diesel sound" ticking noise coming from engine. anyone else notice this?

Yes, gm says its normal, sounds like a type writer. Gm has a bulletin on it (dont remember what number, but it said its normal.

Some guys say dino makes it worse then syntheic, some say seafoam heps it, but i call all bs, I wouldnt worry abou ***.

no worries, same here....