u/Any-Cryptographer324

Does anyone know what this engine sound is?

Does anyone know what this engine sound is?

I changed the oil on my Hyundai i10 2020 it’s a 1L petrol and now it started making a new sound I got a recording of it but it won’t let me post it on here for some reason it happens when it’s warm and only happens at low rpm just above idle till 2-2.5krpm video of it