"Squeak" sound when first running 308 1.6 vti

Hello everyone,

My vehicle is 308 1.6 vti automatic gasoline. When I don't use it for a long time (for example, from evening to morning), there is a "squeaking" sound on the first run. I just bought the vehicle (it's been 3 weeks) and took it to two masters, both of them said the chain sound. There was nothing to be afraid of. I also had 10000 maintenance. The master I had made examined the vehicle in detail. He said that the vehicle was in good condition. I showed the boredom to his cat and said normal. After the engine stops, the oil is drained and the chain, which is oil-free, made a sound in the first run. When he worked for 5 - 10 minutes, the voice goes away. Both masters said the same. It also happens as they say, the sound stops after 5 - 10 minutes. So when the chain is lubricated.

Is there a similar situation in the vehicles you use, or are the masters arguing?

Thank you very much in advance...

Thank you very much for your answer ... I went on the suggestions of my friends to both masters, but still it gets stuck in the mind of the person. The master who took care also put 5 30 oils and told me not to put another one on top of it. Thanks again. May Allah avoid everyone from accident.