How to log into the car system of a used Changan 95?

My car showed an engine fault at 3000 kilometers, asking to check the emission system. Should I use 92 or 95 octane fuel for this car? Can someone with expertise help out?

Can a Nissan GTR use 95 octane gasoline?

Why can't the in-car system of my 2020 Changan Alsvin connect to the hotspot? What's going on?

What do you think, is it better to use 92 or 95 for better performance? I've always used 95, but I've heard that 92 might give more power.

Is the Scirocco only able to use 95 octane fuel?

Is the 2019 model V97 using 92 or 95 fuel?

Can I use 95 octane gasoline?

I'm very interested in the in-car system's performance. How smooth is it? Can CarPlay be used normally? It seems like no one talks about the in-car system issues.

Are you using 95 or 98 octane fuel?

For the 2023 Changan CS35 Plus, when using the CTS-03.08.06.0W-20 Changan-specific full synthetic oil, how many kilometers should the oil be changed during maintenance?