Hi, I bought a 03 C230 and drove it back home for 20miles, no issue. The dealership gave it to me almot flat on gas (!!), so I went and I got gas. I put "unleaded plus" a Racetrac.
Getting back home (2miles) and after the gate of my parking opened, the car started acting strange, shaking when starting and losing strength. When I go to my parking spot, it did not anymore want to move despite acceleration...
Left it overnight and tried again this morning and same status...

Do you think it could be the gas quality? If yes what needs to be done? Any other damage could be caused by this?

Thanks all for your help!