I've been having a weird idling problem intermittently. It is occasionally very rough, and I can feel something going on sometimes under acceleration ... like a misfire or something.
The car has been to the dealer 2 times now for the same code, and their explanation (this time) is that I have ethanol in my fuel and I need to find a different gas station/brand. Given that I don't buy just one name brand, depending on where I am, I have no idea what to do. When I told the service rep that, he repeated himself.
They gave me my car back today with those instructions. And if I have the problem again they will investigate further.
1. Is this hurting my car?
2. What can I do about it?
3. Is there an additive that can help with this?