Are you using regular gas (87 octane) or the recommended premium (91 octane or higher) ?
It doesn't seem to matter. We can't get 91 octane here, so I sometimes run 87 and sometimes 93. Even when I run 93 for a couple tanks in a row, there's no change.
Yes, I have tried different grades of gas. The problem is still there. But I did not pay 30k + for a car to shake on start up. This is why I am seek lemon.
I am ,looking to just get my money back or get into a car with out a problem.