On first startup in the morning, the engine makes a clicking noise. on 2010 Toyota Corolla

It only lasts for 1-2 seconds then quiets down. Should I be concerned? I Use 5W20 Mobile 1.

2 answers
Timing chain noise until tensioner extends, to tighten the chain, from oil pressure. Not a real problem as long as it dont get worse! Try some Lucus oil stablizer with next oil change. Good stuff! Post results later, would like to hear that "clicking noise" is gone.
poss warrrnaty issue. ck with the dealer