Wrong gas??
My teen put in 87 in my 2009 bmw and within
100 miles it started idling poorly. Especially at
low or no speeds. She did this once before
and the exact thing happened. but I thought
it was a coincidence and it ended up needed
coil pack replacement. Maybe I didn’t need
to do that. Does bad gas or wrong octane
gas cause those coils to go bad. Or is there s
suggestion of adding a simple additive or
something that might not be a huge repair
and burn thru this gas. I’m at a quarter tank.