For the 2020 T-Roc 230, what type of fully synthetic engine oil would be best for maintenance? Any recommendations from the experts?

Hello expert, I bought a Volkswagen T-Cross in June 2020. Last night, when the vehicle started and moved about twenty meters, it suddenly stopped as if the chassis had hit a rock. Could you please tell me what the reason might be? Thank you!

Hey fellow car enthusiasts, good afternoon! I've got a question for you all. What type of fuel do you usually use? I've been using Shell since I got my car and have driven over 10,000 kilometers. Now, I'm considering switching to Sinopec or PetroChina. Which one would you recommend? Thanks!

I have an HS7 at home. I'm considering buying a new energy SUV. I don't go out often, but when I do, it's usually a long trip (at least 2 hours). My friends have recommended brands like Li Auto, NIO, and AITO, but I'm thinking about the HS9. However, I've heard it doesn't have a good reputation. I'm here to seek advice on the following aspects and would appreciate genuine feedback and evaluations: charging speed, charging pile installation, material quality, human-vehicle interaction, intelligence, maintenance, and actual range. Thank you, everyone.

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?

I'm currently a college freshman and I really like the Toyota 86. I can save up to 20,000 per year. I want to know if the maintenance cost for the Toyota 86 is high. If I were to buy a used 86, which year would you recommend?

For the 2013 model of GAC GS5 with a 2.0L naturally aspirated engine, what type of engine oil do you recommend for maintenance?

Hey experts, I'm nearing 50,000 km. What tires would you recommend?

Just asking for advice. Fellow car enthusiasts, does the CX30's tire easily get bulges like the 18-inch rims on the Mazda3? How about its fuel consumption and maintenance costs? Which configuration would you recommend? Is the fabric seat a good choice? Is it recommended to get the sunroof version? Any issues with leaking? Is the maintenance troublesome later on? Thanks.

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.

I bought a used 2019 Jetta 1.5L naturally aspirated and have been driving it for a year and a half, but it's only covered 5000 kilometers. Do I need to change the oil now? Which type of oil would be best? Experienced car enthusiasts, please share your advice. Thanks!