Car Nut
Some years ago ( 15 - 20 ), I had quite some lengthy conversations with a group of Ford Powertrain engineers.
When questioned about their biggest challenges facing them, as far as emissions, driveability, component reliability, etc., the all agreed it would be nice if SOMEBODY would provide a decent gasoline.
Upon further probing as to who had the worst quality fuel, wouldn't you know ...........our largest national oilcompany!