That is the sound of cold and dry engine (no oil) - and the valves rubbing dry.
DON’T rev the engine while it is making that noise. It make the oil circulate faster - BUT also your engine is clashing harder while dry.
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It is NOT a serious problem. Just don’t drive till the sound goes away.
Good Luck…
The lifters are ticking because the lack of oil at startup. Try Running a thinner weight oil. 5 w 30 is usually recommended.
on these cars.