Second maintenance hasn't reached 5000 km yet. Should I use the complimentary oil or switch to synthetic, guys?

What engine oil is recommended for the Jinxuan 4B11? I've been using the original 5W30 mineral oil from the 4S shop for over 5 years (people say it's like gutter oil [lol]). I want to switch directly to fully synthetic oil. Any recommendations? Some say you should transition with semi-synthetic oil before switching from mineral to fully synthetic. Is this necessary for the Jinxuan?

Second maintenance hasn't reached 5000 km yet. Should I use the complimentary oil or switch to synthetic, guys?

What maintenance should be done when the car is about to reach 60,000 kilometers?

Folks, I don't drive much. I did the first maintenance within three months, and it's been over half a year now but I haven't driven 5,000 km yet. When should I do the second maintenance?

What should I pay attention to for the second maintenance of the VS7? Any tips from experienced drivers? Do I need to use fully synthetic oil? Currently, it has run 9,200 kilometers.

Do you use fully synthetic or semi-synthetic oil for your 10,000 km oil change?

Changan CS35 Plus, 2023 model, uses CTS-03.08.06. 0W-20 Changan-specific full synthetic oil. How many kilometers should it be driven before an oil change during maintenance?

How long should I wait for the next maintenance after adding semi-synthetic oil?

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?

Hey guys, for a new car with 15,000 km in two years, what maintenance should be done? Just engine oil, oil filter, and air filter, right?