Volvo V40 in KSA

Can I use 92 when I've always been using 95?

Is it normal for the 6AT to have jerky movements at low speed? Or is it because I have set it to prioritize fuel economy?

Hi everyone, I have some questions after test driving a used V40 and need your help! 1. When driving over manhole covers and bumpy roads, the vehicle shakes noticeably, and there's a slight tug on the steering wheel. Is this normal?? 2. When making a slow U-turn, there's a slight delay in power after turning. Is this the normal lag from the transmission? 3. The exhaust pipe on that car is somewhat blackened. Does this indicate oil burning, and if I buy it, how can I fix it??